Browse Topic: Chemicals

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Characterization and Aluminum Recovery from Chemical Milling Sludge in Aerospace Industry2025-01-501603/21/2025
The chemical milling process used in the aerospace industry generates substantial metallic residue in the etching bath, referred to as chemical milling sludge (CMS). The direct disposal of CMS into the environment leads to ecological deterioration and economic losses. This study focused on the recovery of aluminum from the aerospace industry CMS, aiming to mitigate environmental harm and enhance resource efficiency. The energy-dispersive X-ray (EDX) analysis revealed that the aluminum content in extracted CMS increased significantly to 95.86%, compared to 28.98% in non-extracted sludge. The XRD analysis of the CMS extracted samples also revealed the presence of increased Al2O3. The surface morphology study suggested the irregularly shaped particles with large chunks, and fine granules were observed on CMS. The yield of Al2O3 was observed to be 35.9% (wt) prior to the calcination process followed by 12.1% (wt) after calcination. The phytotoxicity study indicated that the CMS inhibited
Prasad, Jag, Sonwani, Ravi Kumar
Technical Paper
DEVCOM CBC Innovates and Integrates through Autonomous TechnologiesTBMG-5212912/01/2024
The U.S. Army Combat Capabilities Development Command Chemical Biological Center (DEVCOM CBC) is paving the way and helping the Army transform into a multi-domain force through its modernization and priority research efforts that are linked to the National Defense Strategy and nation’s goals. CBC continues to lead in the development of innovative defense technology, including autonomous chem-bio defense solutions designed to enhance accuracy and safety to the warfighter.
Magazine Article
test 03/01auto testauto testauto testauto testauto testauto testauto testauto testauto testauto testauto testSAE-PP-0780701/03/2023
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Mutagaana, Festo
Pre-Print Article
abc test 30/12auto testauto testauto testauto testauto testauto testauto testauto testauto testauto testauto testauto testauto testSAE-PP-0780612/30/2022
Mutagaana, F., "QE Testing 11/2-10 jms edit," SAE MobilityRxiv™ Preprint, submitted November 2, 2022, https://doi.org/10.47953/SAE-PP-07790.
Mutagaana, Festo
Pre-Print Article
Wearables: Gold Sensor Performs On-Body Chemical AnalysisTBMG-4695611/01/2022
Magazine Article
An Effective Design of Micro Tesla Valve as a Passive Mixer in Microfluidics Channels 2022-26-117805/26/2022
Mixing fluids is one of the major challenges in microfluidics. Normally, the mixing process is done by diffusion rather than turbulence, which makes it very slow due to low Reynolds number (Re) flow in the range of 0.1 to1. Owing to this behaviour, ineffective mixing occurs when two miscible liquids are mixed purely by diffusion which requires longer striation lengths and therefore longer microfluidic channels along with lengthy mixing time. Homogeneous mixing of solute and solvent is important for providing consistent chemical and biological reactions in µTAS.In this study, we develop a passive mixer that provides efficient mixing using micro tesla valves which allows the flow of liquids in the forward and reverse directions to analyse the formed vortices, turbulent intense areas, Reynolds number, and pressure using Ansys fluent workbench. An optimum design has been arrived by varying the number of cells from 1 to 5 in series and realization is done by excimer laser micromachining.
Singh, Deepak, Sankar PhD, Ravi
Technical Paper
Optical Black Coatings On Carbon Fiber Reinforced Composite Sandwich Structure With Aluminum Honeycomb Core For Satellites Applications.2022-26-114105/26/2022
The composite sandwich structure has been in use in space applications as a result of its high strength to weight ratio coupled with excellent compressibility strength. In particular, there has been tremendous demand for honeycomb sandwich structures for satellite application in recent years. Currently, a major problem needs to be addressed concerning reflections from satellite structures which leads to capturing in-accurate data of celestial bodies by ground-based astronomy. In the light of the above, this paper focuses on the development of novel optical black coatings on Carbon fiber reinforced composite sandwich structures with aluminum honeycomb core. A thin layer of Multi-Walled Carbon Nanotubes black coatings was developed on the surfaces of Carbon fiber reinforced composite laminate of the sandwich structure using Chemical Vapour Deposition technique, to provide low scattering and low reflective surface. Three-point bending test are performed for evaluating the Youngs modulus
CS PhD, Ramesh, J, Sudharshan, Chaurasia, P Harsh
Technical Paper
Digital Manufacturing Execution System for Special Processes 2022-26-116805/26/2022
Processes like Chrome Conversion Coating, Painting, Temper ETCH are categorized as Special Process in Aerospace. They have many variables in the process which need to be monitored, recorded and inter relationship studied using ML & AI. Study of Process Parameters using IIoT, their impact on Quality and the impact on life cycle (Industry 4.0) due to the process parameters maintained at that time of manufacture needs specialized, customized software for each and every process. The said software needs to have checks and alerts for maintenance of Process parameters. It should, on a daily basis do a few lab measurements to cross check whether the automated measuring accuracy is correct or not. Regular empirical calculations for the concentration of baths should be done and an 'alarm' needs to be raised if any mismatch with actual measurement is found. This way regular checking of measuring instruments should be carried out. This also ensures that the issue is found out before it translates
Damodaran, Ramamurthy
Technical Paper
IMPROVING AESTHETICS AND DURABILITY OF INTERIOR TRIMS WITH PU SOFT COATING2022-01-040203/29/2022
Low density plastic substrate significantly contributes to the vehicle weight reduction. It's a low-cost substrate because of mass production of moulded parts. So being a low-cost substrate and its low density properties, the use of plastic parts in automotive body construction, has been increased. But most of the plastic materials are not stable and durable in its color and gloss. Specific additives may help it to withstand, owning to the fact that whole bulk of plastic need not be loaded with these additives. Most plastic parts consist of thermoplastic polymers, have less resistance to chemicals, and solvents. This problem can be resolved using cross-linked and resistant coatings. With the importance of plastics, in automotive interior applications, study of coatings are required which improves performance, aesthetic effects, durability, and chemical resistance. PU based coating has much importance because of its versatile and unique properties. This paper is about Polyurethane based
Palliwar, Kanchan Raju
Technical Paper
Polyetherimide for magnet wire application 2022-01-040003/29/2022
Magnet wire is composed of conducting core and thin layer of electrical insulation. Cupper (Cu) is typically used as conducting core, and various polymers such as polyamideimide, polyimide, and polyesterimide are used for electrical insulation. The role of magnet wire is involved in interchanging between electrical energy and mechanical energy for energy transformation application such as transformer, motor, generator, and many other equipment. Currently, electric vehicles (EV) industry is rapidly growing and consequential demands on related components are increasing as well. Compared to combustion engine, EV needs more electrical power with higher voltages or higher currents, which can increase probability of electrical discharge. The degradation of insulation layer can happen with the polymer bond breakage under the partial discharge electric stresses. To keep high performance under higher voltage, insulating polymer should have high heat resistances, chemical resistance, and low
Kim, Sang Hoon, Lee, Dae Ho
Technical Paper
Effect of Decoration on Windshield Impact Resistance and Novel Decoration Solution Compatible with Chemical Strengthening2022-01-030403/29/2022
Ball bearing impact tests were performed to evaluate impact resistance of laminates with different decoration configurations. Test results showed that laminates made with enamel decorative frit only on Surface 4, significantly outperformed laminates that had enamel on Surface 2. Furthermore, it was found that hybrid laminates, consisting of a standard annealed outer-ply and a thin, chemically strengthened inner-ply with a specially formulated decorative frit which is compatible with the ion-exchange chemical strengthening process, resulted in impact resistance levels that were three times greater than conventional laminates. Details follow.
Cleary, Thomas, Huten, Timothy, Lehuede, Philippe, Joubaud, Laurent, Friske, Mark
Technical Paper
A quick method to evaluate fuel chemistry on vehicle particulate emissions2022-01-058503/29/2022
Fuel chemistry plays a crucial role in the continued reduction of particulate emission (PE) and cleaner air quality while using internal combustion engines (ICE). Over the past ten years, there has been great improvements in the measurements of particulate formation indices. Examples of these indices would be the Honda Particulate Matter Index (PMI) equation and the General Motors Particulate Evaluation Index (PEI), among others. Even though there have been improvements in particulate index (PI) measurement tools, the method analysis within these tools are still very time-consuming. These methods can include the use of chromatography separation techniques such as detailed hydrocarbon analysis (DHA), which have become very popular in the petrochemical industry. A review of historical PI methods will be discussed, along with a PE comparison to a less time-consuming simulated distillation method analysis. Simulated Distillation (SimDis) is used for the determination of gasoline by wide
Geng, Pat, collin, William, Akers, Veronica
Technical Paper
Silver surface treatment applicable to bolts for motorcycles2022-32-004101/09/2022
In motorcycles, the exposed mechanical parts play important roles in the styling design. The bolts that fasten these parts a good appearance in addition to the fastening function. Since many parts of a motorcycle are designed so as to appeal the mechanical and metallic beauty, needs are higher for silver-color bolts. Motorcycle bolts are exposed to the external environment, so they are required to have also cosmetic durability. Though there is a surface treatment having a higher cosmetic durability such as the chromium plating, due to its metallic gloss like a mirror, chrome-plated bolts are applicable only to specific models and parts. In this study, we developed a surface treatment that enhance the appearance and cosmetic durability required of bolts for motorcycles. The layer of developed surface treatment is dip coating with thin film polyorganosiloxane material on zinc plating. Clarified a zone where both the appearance and the cosmetic durability are attainable through the
Hirayama, Hiroshi, Inoue, Manabu, Koike, Takeshi
Technical Paper
Structural Examination of Titanium Alloys Etch-Anodize Inspection ProcedureAMS2642F (Current)11/03/2021
This specification covers a procedure, typically referred to as Blue Etch Anodize, for revealing the macrostructure and microstructure of selected titanium alloys.
AMS B Finishes Processes and Fluids Committee
Material Specification
Steel, Bars, Forgings, Mechanical Tubing and Forging Stock 1.2Cr - 3.25Ni - 0.12Mo (0.07 - 0.13C) (9310) Vacuum Consumable Electrode RemeltedAMS6265R (Current)10/22/2021
This specification covers a premium aircraft-quality, low-alloy steel in the form of bars, forgings, mechanical tubing, and forging stock.
AMS E Carbon and Low Alloy Steels Committee
Material Specification
Impact of chemical blowing agent on polypropylene properties2021-28-020310/01/2021
Weight reduction and material saving goals in automotive applications have led to the processing of thermoplastic polymers by foam injection molding. The density of the foamed polymer can be reduced up to 20%. Whilst, work has been reported on the weight reduction of the foamed polymer by using different types of blowing agent technologies, there has been limited studies in the areas of the sound transmission loss and material dampening properties of these materials. The present study is intended to understand the effect of chemical blowing agent (CBA) on the properties of polypropylene. The molded specimens were characterized against the density, Tensile property, flexural property, Izod impact, heat deflection temperature, differential scanning colorimetry (DSC), thermogravimetric analysis (TGA), Fourier transform infra-red spectroscopy (FT-IR), sound transmission loss (STL) properties as per standard test protocol and cell structures by stereo microscope. Obtained results indicates
Shukla, Sandeep Kumar, Balaji, K V
Technical Paper
Physio – Mechanical and Chemical Behaviors of Surface Modified Coconut Inflorescence Fiber2021-28-027510/01/2021
The need for bio-friendly composite has triggered researchers to explore several natural lignocellulose fibers. The promising properties of the fibers resulted in natural fibers to be used as potential alternate for synthetic man-made fibers. The present work deals with exploration of physical, chemical and mechanical properties of coconut inflorescence fibers. The coconut inflorescence fibers are extracted by the process of retting and then the fibers are subjected to surface modification with KOH. The amorphous constituents present in the fibers were eroded and significant improvements in properties of the fibers were observed. XRD and FTIR analysis confirmed the removal of functional groups and crystallinity improvement were also observed. Single fiber tensile test confronted the improvement in tensile properties of the fibers. Increase in fiber diameter was also observed as a result of surface modifications done on the fiber surfaces. Finally SEM analysis confirmed the removal of
Soundarrajan, Karthik, R, Soundararajan, A, Sathishkumar
Technical Paper
Test Slabs, Chloroprene (CR) 70 - 80AMS3217/3D (Current)10/01/2021
This specification covers a standard chloroprene (CR) rubber stock in the form of molded test slabs.
AMS CE Elastomers Committee
Material Specification
Chemical Identification of Transportation Batteries for RecyclingJ2984_202109 (Current)09/10/2021
Battery Standards Recycling Committee
Recommended Practice
Heat Treatment of Carbon and Low-Alloy Steel Parts Minimum Tensile Strength Below 220 ksi (1517 MPa)AMS2759/1J (Current)08/03/2021
This specification, in conjunction with the general requirements for steel heat treatment covered in AMS2759, establishes the requirements for heat treatment of carbon and low-alloy steel parts to minimum ultimate tensile strengths below 220 ksi (1517 MPa). Parts are defined in AMS2759. Due to limited hardenability in these materials, there are size limits in this specification.
AMS E Carbon and Low Alloy Steels Committee
Material Specification
Organic Material for Next-Generation HVAC TechnologiesTBMG-3962408/01/2021
Heating, ventilation, and air conditioning (HVAC) systems often come with dehumidifiers but are currently not energy efficient, guzzling around 76% of the electricity in commercial and residential buildings. Researchers have determined that organic material called polyimides use less energy to dry air. Poly-imide-based dehumidifiers can bring down the price of HVAC systems, which currently cost thousands of dollars.
Magazine Article
Product Analysis - Permissible Variations from Specified Chemical Analysis of a Heat or Cast of SteelJ409_202107 (Current)07/15/2021
Supplementary to the heat or cast analysis, a product analysis may be made on steel in the semifinished or finished form. For definitions and methods of sampling steel for product chemical analysis, refer to SAE J408. A product analysis is a chemical analysis of the semifinished or finished steel to determine conformance to the specification requirements. The range of the specified chemical composition is normally expanded to take into account deviations associated with analytical reproducibility and the heterogeneity of the steel. Individual determinations may vary from the specified heat or cast analysis ranges or limits to the extent shown in Tables 1 through 5. The several determinations of any element in a heat or cast may not vary both above and below the specified range except for lead. Tables 1 through 5 provide permissible limits for various steel forms and composition types. For rephosphorized and resulfurized steels, the product analysis tolerance limits are not applicable
Metals Technical Committee
Technical Standard
Product Analysis - Permissible Variations from Specified Chemical Analysis of a Heat or Cast of SteelJ409_202107-TEST-REC (Historical)07/15/2021
Supplementary to the heat or cast analysis, a product analysis may be made on steel in the semifinished or finished form. For definitions and methods of sampling steel for product chemical analysis, refer to SAE J408. A product analysis is a chemical analysis of the semifinished or finished steel to determine conformance to the specification requirements. The range of the specified chemical composition is normally expanded to take into account deviations associated with analytical reproducibility and the heterogeneity of the steel. Individual determinations may vary from the specified heat or cast analysis ranges or limits to the extent shown in Tables 1 through 5. The several determinations of any element in a heat or cast may not vary both above and below the specified range except for lead. Tables 1 through 5 provide permissible limits for various steel forms and composition types. For rephosphorized and resulfurized steels, the product analysis tolerance limits are not applicable
Metals Technical Committee
Technical Standard
Aluminum Alloy Forgings and Rolled or Forged Rings and Forging Stock 1.0Mg - 0.60Si - 0.28Cu - 0.20Cr (6061 - T4) Solution Heat Treated and Naturally AgedAMS4146H-TEST-REC (Historical)07/07/2021
This specification covers an aluminum alloy in the form of die forgings up to 4 inches (102 mm), hand forgings up to 8 inches (203 mm), rolled or forged rings up to 2.5 inches (63.5 mm) in thickness, and forging stock (see 8.6).
AMS D Nonferrous Alloys Committee
Material Specification
Core, Flexible Honeycomb, Aluminum Alloy, Treated for Sandwich Construction 5052, 350 Fahrenheit (177 Celsius)AMS4178G-TEST-REC (Historical)07/07/2021
This specification covers an aluminum alloy in the form of honeycomb core in a non-hexagonal, flexible cell configuration, the core being treated for increased corrosion resistance and furnished only in the expanded form.
AMS D Nonferrous Alloys Committee
Material Specification
Heat Treatment of Low-Alloy Steel Parts Minimum Tensile Strength 220 ksi (1517 MPa) and HigherAMS2759/2K (Current)07/07/2021
This specification, in conjunction with the general requirements for steel heat treatment covered in AMS2759, establishes the requirements for heat treatment of low-alloy steel parts to minimum ultimate tensile strengths of 220 ksi (1517 MPa) and higher. Parts are defined in AMS2759. The requirements for heat treatment of alloy Aermet100 are no longer part of this specification and can be found in AMS2759/3. Due to the limited hardenability of these materials, size limits have been added to this specification.
AMS E Carbon and Low Alloy Steels Committee
Material Specification
Aluminum Bronze Bars, Rods, and Forgings 87Cu - 9Al - 3Fe Stress RelievedAMS4635H (Current)07/07/2021
This specification covers one type of aluminum bronze in the form of bars, rods, forgings, and forging stock.
AMS D Nonferrous Alloys Committee
Material Specification
Aluminum Alloy Forgings and Rolled or Forged Rings and Forging Stock 1.0Mg - 0.60Si - 0.28Cu - 0.20Cr (6061 - T4) Solution Heat Treated and Naturally AgedAMS4146H (Current)07/07/2021
This specification covers an aluminum alloy in the form of die forgings up to 4 inches (102 mm), hand forgings up to 8 inches (203 mm), rolled or forged rings up to 2.5 inches (63.5 mm) in thickness, and forging stock (see 8.6).
AMS D Nonferrous Alloys Committee
Material Specification
Core, Flexible Honeycomb, Aluminum Alloy, Treated for Sandwich Construction 5052, 350 Fahrenheit (177 Celsius)AMS4178G (Current)07/07/2021
This specification covers an aluminum alloy in the form of honeycomb core in a non-hexagonal, flexible cell configuration, the core being treated for increased corrosion resistance and furnished only in the expanded form.
AMS D Nonferrous Alloys Committee
Material Specification
Iron-Nickel Alloy, Strip 49Fe - 5.3Cr - 42Ni - 2.5Ti - 0.55Al Solution Heat Treated, Cold Rolled, 50% ReductionAMS5225G (Current)06/01/2021
This specification covers an iron-nickel alloy in the form of strip.
AMS F Corrosion Heat Resistant Alloys Committee
Material Specification
FITTING, ELBOW 90°, BULKHEAD, EXTERNAL SWAGE TO FLARELESS, HYDRAULICAS6484 (Current)05/11/2021
G-3, Aerospace Couplings, Fittings, Hose, Tubing Assemblies
Technical Standard
Remover, Acid Activated, For Amine-Cured Epoxy Coating SystemsAMSR81903A-TEST-REC (Historical)05/06/2021
This specification covers the requirements for removers used on amine-cured epoxy coating systems (see 6.1).
AMS J Aircraft Maintenance Chemicals and Materials Committee
Material Specification
Remover, Acid Activated, For Amine-Cured Epoxy Coating SystemsAMSR81903A (Current)05/06/2021
This specification covers the requirements for removers used on amine-cured epoxy coating systems (see 6.1).
AMS J Aircraft Maintenance Chemicals and Materials Committee
Material Specification
Elastomer: Silicone Rubber (VMQ) Aircraft Piston Engine Oil Resistant Compression Set Resistant 65 - 75 Type A HardnessAMS3357H (Current)03/10/2021
This specification covers a silicone (VMQ) elastomer that can be used to manufacture product in the form of sheet, strip, tubing, extrusions, and molded shapes. For molded rings, compression seals, O-ring cord, and molded-in-place gaskets for aeronautical and aerospace applications, use the AMS7XXX specification.
AMS CE Elastomers Committee
Material Specification
Steel, Corrosion Resistant, Sheet, Strip, and Plate 9.0Mn - 20Cr - 6.5Ni - 0.28N Solution Heat TreatedAMS5595H-TEST-REC (Historical)03/01/2021
This specification covers a corrosion-resistant steel in the form of sheet, strip, and plate.
AMS F Corrosion Heat Resistant Alloys Committee
Material Specification
Steel, Corrosion Resistant, Sheet, Strip, and Plate 9.0Mn - 20Cr - 6.5Ni - 0.28N Solution Heat TreatedAMS5595H (Current)03/01/2021
This specification covers a corrosion-resistant steel in the form of sheet, strip, and plate.
AMS F Corrosion Heat Resistant Alloys Committee
Material Specification
Quantum-Limit-Approaching Chemical Sensing ChipTBMG-3863903/01/2021
University at Buffalo researchers are reporting an advancement of a chemical sensing chip that could lead to handheld devices that detect trace chemicals — everything from illicit drugs to pollution — as quickly as a breathalyzer identifies alcohol.
Magazine Article
Plating, Nickel Low-Stressed DepositAMS2424G (Current)02/26/2021
This specification covers the requirements for electrodeposited low-stressed nickel.
AMS B Finishes Processes and Fluids Committee
Material Specification
Chemical Identification by Magneto-Elastic Sensing (ChIMES)TBMG-3848302/01/2021
A low-cost sensor technology, called Chemical Identification by Magneto-Elastic Sensing (ChIMES), uses target response materials (TRMs) as actuators in magneto-elastic (M-E) sensors (Figure 1).
Magazine Article
Platform for All-Optical ComputingTBMG-3836001/01/2021
Researchers have developed a new platform for all-optical computing, meaning computations done solely with beams of light. Most computation right now uses hard materials such as metal wires, semiconductors, and photodiodes to couple electronics to light. All-optical computing removes the rigid components and controls light with light.
Magazine Article
CLAMP, LOOP, CUSHIONED, ELONGATED, METRICMA14272A (Current)12/29/2020
G-3, Aerospace Couplings, Fittings, Hose, Tubing Assemblies
Technical Standard
CLAMP, LOOP, CUSHIONED, ELONGATED, METRICMA14272A-TEST-REC (Historical)12/29/2020
G-3, Aerospace Couplings, Fittings, Hose, Tubing Assemblies
Technical Standard
Design of New Piezoelectric Composites Using Nanocellulose20AERP12_1012/01/2020
Using cellulose crystals as building blocks for the design and development of new low-density functional polymer composites. Air Force Research Laboratory, Arlington, Virginia This research project focused on cellulose crystals as building blocks for the design and development of new low-density functional polymer composites. Although the piezoelectricity of cellulose has been predicted from its noncentrosymmetric crystal structure, it has not been measured accurately, nor has cellulose been properly exploited as a piezoelectric material. If it is proven, it could enable novel low-density electroactive materials capable of surpassing the performance of the best synthetic piezoelectric polymer such as polyvinylidene difluoride (PVDF). To fulfill this objective, a systematic study was required to judiciously manipulate dipoles of individual cellulose nanocrystals to produce polar ordering at the macroscale and accurately characterize the nano-to-mesoscale structural ordering and
Magazine Article
TEE, STANDARD REDUCER, EXTERNAL SWAGE ON RUN, MALE FLARELESS ON SIDE, HYDRAULICAS6470 (Current)11/12/2020
G-3, Aerospace Couplings, Fittings, Hose, Tubing Assemblies
Technical Standard
Wool-Like Material Remembers and Changes ShapeTBMG-3796511/01/2020
Researchers have developed a biocompatible material that can be 3D-printed into any shape and pre-programmed with reversible shape memory. The material is made using keratin, a fibrous protein found in hair, nails, and shells. The researchers extracted the keratin from leftover Agora wool used in textile manufacturing.
Magazine Article
E-Tongue Nanosensor ArrayTBMG-3799511/01/2020
E-Tongue, a patent-pending technology, is comprised of a silicon-based interdigitated electrode (IDE) array with nanostructured materials that can detect biomolecules and chemical compounds in a liquid sample.
Magazine Article
A Study of the Interactions between Phenolic Resin and Metal Sulphides and Their Contribution to PAD Performance and Wear2020-01-160010/05/2020
In order to keep the coefficient of friction stable, some additives such as metal sulphides, are included in the brake pads formulation. Previous work from RIMSA has shown that oxidation temperature range of the metal sulphides can be one of the key properties to explain their contribution to the performance and wear of a PAD. This new work is a step forward in the interpretation of the mechanism of sulphides as chemically active additives in the brake pads. Phenolic resin is the matrix of the brake pads and starts to decompose around 300 °C in presence of oxygen and temperature. In order to establish a connection on between sulphide oxidation and phenolic resin degradation, several studies based on heat treatment of blends of different metal sulphides (Iron sulphide, Tin sulphide and Composite sulphide) with phenolic resin have been done. Then the material evolution was studied with techniques such as TGA-DSC, XRD, IR and SEM-EDS. The results obtained confirm that there is an
Macías, Gabriela, Lorenzana, Carlos, Fernandez, Javier
Journal Article
Minimizing Stress-Corrosion Cracking in Wrought Titanium Alloy ProductsARP982D (Current)09/21/2020
Primarily to provide recommendations concerning minimizing stress-corrosion cracking in wrought titanium alloy products.
AMS G Titanium and Refractory Metals Committee
Recommended Practice
Aluminum Alloy, Hand Forgings 5.6Zn - 2.5Mg - 1.6Cu - 0.23Cr (7075-T7452) Solution Heat Treated, Stress Relieved, and Precipitation Heat TreatedAMS4323D-TEST-REC (Historical)09/09/2020
This specification covers an aluminum alloy in the form of hand forgings up to 6 inches (152 mm) inclusive, in nominal as-forged thickness and having a cross-sectional area of not more than 156 square inches (1006 cm2) (see 8.6).
AMS D Nonferrous Alloys Committee
Material Specification
Aluminum Alloy, Hand Forgings 5.6Zn - 2.5Mg - 1.6Cu - 0.23Cr (7075-T7452) Solution Heat Treated, Stress Relieved, and Precipitation Heat TreatedAMS4323D (Current)09/09/2020
This specification covers an aluminum alloy in the form of hand forgings up to 6 inches (152 mm) inclusive, in nominal as-forged thickness and having a cross-sectional area of not more than 156 square inches (1006 cm2) (see 8.6).
AMS D Nonferrous Alloys Committee
Material Specification
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