About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
|
Advances in Titanium Technology
|
Presentation Title |
M-1: Development of a TWIP/TRIP Titanium Alloy |
Author(s) |
Mathew T. Cohen, Brian A Welk, Gopal B Viswanathan, Hamish L Fraser |
On-Site Speaker (Planned) |
Mathew T. Cohen |
Abstract Scope |
Titanium alloys have long been used as a structural material due to their high strength-to-weight ratio as well as a variety of other properties. High strength titanium alloys, which typically have a refined, high-volume fraction a-lath microstructure, exhibit very little work hardening. Previous research has shown that twinning induced plasticity (TWIP) and transformation induced plasticity (TRIP) deformation mechanisms can increase the amount of work hardening of titanium alloys. However, the yield strength and ultimate tensile strength are reduced due to the low volume fraction (typically <5%) of the alpha phase. In this work, a titanium alloy was developed which deforms by TWIP/TRIP, while having a higher-than-normal amount of alpha to increase strength. Heat treatments were performed to optimize the volume fraction alpha leading to an alloy with a good combination of strength, ductility, and significant work hardening. The microstructure has been characterized using SEM and TEM techniques. |
Proceedings Inclusion? |
Planned: |
Keywords |
Mechanical Properties, Titanium, |