Browse Topic: Titanium

Items (748)

Influences of Martensite Morphology and Precipitation on Bendability in Press-Hardened Steels

2022-01-027203/29/2022

Performance evaluation of martensitic press-hardened steels by VDA 238-100 three-point bend testing has become commonplace. Significant influences on bending performance exist from both surface considerations related to both decarburization and substrate-coating interaction and base martensitic steel considerations such as structural heterogeneity, i.e., banding, prior austenite grain size, titanium nitride (TiN) dispersion, mobile hydrogen, and the extent of martensite tempering as result auto-tempering upon quenching or paint baking during vehicle manufacturing. Deconvolution of such effects is challenging in practice, but it is increasingly accepted that surface considerations play an outsized role in bending performance. For specified surface conditions, however, the base steel microstructure can greatly influence bending performance and associated crash ductility to meet safety and mass-efficiency targets. This study reports and elucidates the positive effect of prior austenite

Enloe, Charles M., Mohrbacher, Hardy

LINK, TERMINAL, CONNECTING

AS25226C (Current)

10/28/2021

AE-8C2 Terminating Devices and Tooling Committee

Product Analysis - Permissible Variations from Specified Chemical Analysis of a Heat or Cast of Steel

J409_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

Product Analysis - Permissible Variations from Specified Chemical Analysis of a Heat or Cast of Steel

J409_202107-TEST-REC (Historical)07/15/2021

Metals Technical Committee

Iron-Nickel Alloy, Strip 49Fe - 5.3Cr - 42Ni - 2.5Ti - 0.55Al Solution Heat Treated, Cold Rolled, 50% Reduction

AMS5225G (Current)

06/01/2021

This specification covers an iron-nickel alloy in the form of strip.

AMS F Corrosion Heat Resistant Alloys Committee

Chemical Process Test Specimen Material

AS2390A (Current)

02/01/2021

This standard establishes definitions, guidelines, and requirements governing materials (e.g., alloy and heat treat condition) allowed for use in chemical process test specimens when requirements call for a generic class of alloy.

AMS B Finishes Processes and Fluids Committee

Minimizing Stress-Corrosion Cracking in Wrought Titanium Alloy Products

ARP982D (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

Vanadium: A Green Metal Critical to Aerospace and Clean Energy

TBMG-3737608/01/2020

In the 1960s, the world’s leading aerospace engineers at Lockheed’s Skunk Works facility faced an extraordinarily difficult engineering challenge: how to design a successor to the U-2 spy aircraft, which had proven increasingly vulnerable to advanced Soviet anti-aircraft systems. Among other capabilities, the next-generation aircraft they were to design required an ability to cruise at a sustained speed of Mach 3+, operate at altitudes exceeding 80,000 feet, and feature as low a radar cross section as possible. Given the technologies of the day – slide rules were still used by engineers for most calculations – it was a daunting task.

Vanadium A Green Metal Critical to Aerospace and Clean Energy

20AERP08_0208/01/2020

In the 1960s, the world's leading aerospace engineers at Lockheed's Skunk Works facility faced an extraordinarily difficult engineering challenge: how to design a successor to the U-2 spy aircraft, which had proven increasingly vulnerable to advanced Soviet anti-aircraft systems. Among other capabilities, the next-generation aircraft they were to design required an ability to cruise at a sustained speed of Mach 3+, operate at altitudes exceeding 80,000 feet, and feature as low a radar cross section as possible. Given the technologies of the day - slide rules were still used by engineers for most calculations - it was a daunting task. One of the key hurdles was designing and machining components of the jet's outer skin such that it could handle temperatures from aerodynamic friction and continuous engine operation as high as 1,050 °F. The answer: titanium-based alloys that contained the metal vanadium. When added to titanium, vanadium helps to create alloys with the best strength-to

Terminology for Titanium Microstructures

AS1814F (Current)

07/16/2020

This list of terms, with accompanying photomicrographs where appropriate, is intended as a guide for use in the preparation of material specifications.

AMS G Titanium and Refractory Metals Committee

Standard Stock Removal Allowance Aircraft-Quality and Premium Aircraft-Quality Steel Bars and Mechanical Tubing

AS1182D (Historical)04/23/2020

The purpose of this document is to provide the aerospace industry with standards for minimum stock removal allowances for bars and mechanical tubing to provide surfaces which are free from decarburization, seams, laps, tears, cracks, pits, and other injurious surface imperfections.

AMS E Carbon and Low Alloy Steels Committee

Copper Strengthens 3D-Printed Titanium

TBMG-3619003/01/2020

Titanium alloys used in additive manufacturing often cool and bond together in column-shaped crystals during the 3D printing process, making them prone to cracking or distortion. And unlike aluminum or other commonly used metals, there is no commercial grain refiner for titanium that manufacturers can use to effectively refine the microstructure to avoid these issues.

Titanium Alloy, Round Bar and Wire 3Al - 8V - 6Cr - 4Mo - 4Zr Consumable Electrode Melted Solution Heat Treated and Cold Drawn

AMS4957G (Current)01/14/2020

This specification covers a titanium alloy in the form of round bar and wire, 0.625 inch (15.88 mm) and under in nominal diameter or thickness.

AMS G Titanium and Refractory Metals Committee

Reducing the High Cost Of Titanium

TBMG-3566712/01/2019

Titanium is neither a precious metal nor rare, yet among industrial metals it has the reputation for being very expensive. It's the fourth most abundant metallic element and the ninth most abundant of all the elements in the earth's crust. Its commercially useful oxide ore occurs in the minerals rutile and ilmenite and numerous iron ores, and exploitable ore deposits are liberally scattered around the world in Australia, Canada, India, Malaysia, Norway, Russia, South Africa and the U.S. But due to its properties and high cost it has often been referred to as unobtanium.

Reducing the High Cost Of Titanium

19AERP12_0312/01/2019

Aluminum Alloy, Alclad Sheet and Plate 6.3Cu - 0.30Mn - 0.18Zr - 0.10V - 0.06Ti Alclad 2219-T31; Sheet, Solution Heat Treated and Cold Worked Alclad 2219-T351; Plate, Solution Heat Treated and Stress Relieved

AMS4095E (Current)10/01/2019

This specification covers an aluminum alloy in the form of sheet and plate 0.020 to 0.499 inch (0.51 to 12.67 mm) inclusive, in nominal thickness (see 8.4) alclad two sides.

AMS D Nonferrous Alloys Committee

Aluminum Alloy, Sheet and Plate, Alclad 4.4Cu - 1.5Mg - 0.60Mn (2024, -T3 Sheet/-T351 Plate with 1-1/2% Alclad) Solution Heat Treated, Cold Worked and Naturally Aged

AMS4041T (Current)09/03/2019

This specification covers an aluminum alloy in the form of sheet and plate alclad two sides, over 0.187 to 1.000 inch (over 4.750 to 25.40 mm) in nominal thickness, supplied in the -T3/-T351 temper.

AMS D Nonferrous Alloys Committee

Method Uses Ultraviolet Light to Control Fluid Flow and Organize Particles

TBMG-3490708/01/2019

A new method uses ultraviolet light to control the flow of fluids by encouraging particles — from plastic microbeads, to bacterial spores, to pollutants — to gather and organize at a specific location within a liquid and, if desired, move to new locations.

Calculation of Electron Vacancy Number in Superalloys

AS5491D (Current)

07/24/2019

This SAE Aerospace Standard (AS) establishes a uniform procedure for calculation of electron vacancy numbers in superalloys. It is intended for use by suppliers of raw materials and parts, typically castings, for which control of electron vacancy number is required by the raw material specification.

AMS F Corrosion Heat Resistant Alloys Committee

Titanium Alloy, Extrusions and Flash Welded Rings 6Al - 4V Solution Heat Treated and Aged

AMS4934H (Historical)

06/03/2019

This specification covers a titanium alloy in the form of extruded bars, and shapes, flash welded rings up through 3.000 inches (76.20 mm) inclusive, in nominal diameter or least distance between parallel sides, and stock for flash welded rings of any size.

AMS G Titanium and Refractory Metals Committee

Titanium Alloy, Extrusions and Flash Welded Rings 6Al - 4V Solution Heat Treated and Aged

AMS4934H-TEST-REC (Historical)06/03/2019

AMS G Titanium and Refractory Metals Committee

Aerospace & Defense Technology: June 2019

19AERP0606/01/2019

Eyes in the Sky Rugged High-Speed Cameras Capture Critical Flight Test Video Data Panoramic Thermal Imaging Technology A New Concept in Naval Defense Coating Technology Enables Effective Missile Countermeasures FACE™ - Future Airborne Capability Environment Diminishing U.S. Combat Superiority Drives New Software Development Requirements Broadband 1.2- and 2.4-mm Gallium Nitride (GaN) Power Amplifier Designs Multi-Agent RF Propagation Simulator Electrical Characterization of Crystalline UO2, THO2 and U0.71TH0.29O2 Evaluating the suitability of advanced alloys for use in uranium-based neutron detectors. ONR Short Pulse Research, Evaluation and non-SWaP Demonstration for C-sUAV Study Research project is designed to map small unmanned aerial vehicle (sUAV) effects space, empirically and by simulation, as a function of high power microwave (HPM) waveform to develop effective countermeasures. Matrix-Free Assisted Laser Desorption Ionization Using Metal-Organic Frameworks Machining Titanium

Chemical Check Analysis Limits Titanium and Titanium Alloys

AMS2249J (Current)

04/05/2019

This specification defines limits of variation for determining acceptability of the composition of cast or wrought titanium and titanium alloy parts and material acquired from a producer.

AMS G Titanium and Refractory Metals Committee