Deformation behavior and microstructure evolution in multistage hot working of TA15 titanium alloy: on the role of recrystallization

2011 ◽  
Vol 46 (18) ◽  
pp. 6018-6028 ◽  
Author(s):  
X. G. Fan ◽  
H. Yang ◽  
P. F. Gao
Keyword(s):  
Titanium Alloy ◽  
Microstructure Evolution ◽  
Deformation Behavior ◽  
Hot Working ◽  
Ta15 Titanium Alloy

Hot Working of Ti Aluminide Made through Reaction Synthesis

2012 ◽  
Vol 710 ◽  
pp. 137-142
Author(s):  
Rohit Kumar Gupta ◽  
Bhanu Pant ◽  
Vijaya Agarwala ◽  
Parameshwar Prasad Sinha
Keyword(s):  
Microstructure Evolution ◽  
Titanium Aluminide ◽  
Hot Isostatic Pressing ◽  
Hot Working ◽  
Reaction Synthesis ◽  
Refined Grains ◽  
Isostatic Pressing ◽  
Die Forging ◽  
Open Die Forging

Hot working of titanium aluminide made through reaction synthesis (RS) has been studied. Hot isostatic pressing under argon, isothermal pressing under vacuum, open die forging and pack forging was carried out. Hot worked billet samples were characterized for density and microstructure evolution. Presence of refined grains and dynamically recrystallized grains were observed. In case of open die forging, presence of twins was also found. From the present study, near isothermal working through near conventional processes has been confirmed. However, role of isothermal working in obtaining crack free sound deformed product has also been noted.

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