About this Abstract |
Meeting |
2024 TMS Annual Meeting & Exhibition
|
Symposium
|
Fatigue in Materials: Fundamentals, Multiscale Characterizations and Computational Modeling
|
Presentation Title |
Comparison of Hardening Behavior and Yield surface in Ti6Al4V Made using Laser Powder Bed Process and Traditional Methods |
Author(s) |
Leila Ladani, Venkateshwaran Ravi Narayanan |
On-Site Speaker (Planned) |
Venkateshwaran Ravi Narayanan |
Abstract Scope |
Ti-6Al-4V is an alloy with wide ranging applications in fields such as aerospace engineering and medical implants due to its high strength, durability, and good corrosion resistance. This study intends to compare isotropic and kinematic hardening behavior in additively manufactured (AM), specifically powder bed fusion Ti6Al4V to traditionally manufactured methods. For isotropic hardening, Voce’s non-linear hardening model is used wherein the change in the yield stress due to work hardening as well as the parameters of the model are compared with each other. For kinematic hardening, a multicomponent Armstrong-Frederick model proposed by Chaboche is utilized. This model is used to determine the value of backstress with the help of plastic strain. This backstress value is then compared for AM and traditional methods. These calculated values are used to compare how the yield surface evolves for the alloy as it undergoes plastic deformation. |
Proceedings Inclusion? |
Planned: |
Keywords |
Additive Manufacturing, Modeling and Simulation, Titanium |