|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Advanced Thermo-mechanical Characterization of Materials with Special Emphasis on In Situ Techniques
||L-11: High Temperature Dynamic Mechanical Response of Titanium Alloys
||Sindhura Gangireddy, Steven Mates
|On-Site Speaker (Planned)
Titanium alloys are widely used in aerospace industry. A constitutive material model is crucial in understanding component failure as well as in the improvement of manufacturing processes such as high speed machining. Numerous studies are happening on mathematical modeling and simulation of such conditions, but they are all only as good as the material model used. Experiments were conducted at high temperatures under dynamic mechanical and thermal loading conditions, creating close simulation of extreme THERMO-MECHANICAL events such as explosive impact, high speed machining etc. The constitutive response of Ti-6Al-4V alloy and CP-Ti will be presented from a wide range of testing conditions: room temperature - 1200C, 0.1-0.3 plastic strains and 0.000001-3000 strain rate. Effect of time dependent microstructural evolution (annealing, grain growth, phase transformation) and grain morphology (globular, lamellar, widmanstatten, martensitic) was also investigated. All results are very recent from last year study conducted at NIST.
||Planned: Supplemental Proceedings volume