|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||GAT-2017 (Gamma Alloys Technology - 2017)
||Effect of Post-Processing on Microstructure and Mechanical Properties of
||Mohsen Seifi, Ayman Salem, Daniel Satko, Ulf Ackelid, John J. Lewandowski
|On-Site Speaker (Planned)
Both cast and wrought titanium aluminide alloys have been studied for more than four decades because of attractive properties that include low density, high specific strength, high specific stiffness and oxidation resistance up to about 700°C. Electron beam melting provides another processing approach to producing net shape components, although little work has been conducted to examine processing-microstructure-property relationships. This work examines effects of post processing and on γ-TiAl (Ti-48Al-2Cr-2Nb) specimens. Mechanical behavior studies on as-deposited and post-processed conditions included Vickers micro-hardness, compression, fracture toughness and fatigue crack growth testing. In addition, microstructural details were investigated over a range of scales using various microscopy tools. The presentation will summarize this evolving work on the characterization of AM γ TiAl and provide some comparison to other conventional (e.g. as-cast, wrought) γ-TiAl alloys.
||Planned: Stand-alone book in which only your symposium’s papers would appear (indicate title in comments section below)