Change in Microstructure by Heat-Treatment and Corresponding Deformation Behavior in Ni3V Single Crystals

2010 ◽  
Vol 638-642 ◽  
pp. 1318-1323 ◽  
Author(s):  
Koji Hagihara ◽  
Mayumi Mori ◽  
Takuya Kishimoto ◽  
Yukichi Umakoshi

D022-Ni3V contains three variants whose [001] c-axes are mutually perpendicular. In addition, due to the order-disorder transition the anti-phase domains (APD) are also introduced under some heat-treatment conditions. In this study, the influence of such microstructures; the size of variants and APDs, on the plastic deformation behavior of Ni3V was investigated by using single crystals, in which the microstructure was variously controlled by heat-treatments.

2016 ◽  
Vol 57 (6) ◽  
pp. 819-823 ◽  
Author(s):  
Yuichi Yanaka ◽  
Yoshiharu Kariya ◽  
Hirohiko Watanabe ◽  
Hiroaki Hokazono

2000 ◽  
Vol 646 ◽  
Author(s):  
Kouji Hagihara ◽  
Takayoshi Nakano ◽  
Yukichi Umakoshi

ABSTRACTPlastic deformation behavior and substructures in Ni3Nb single crystals were examined focusing on the operative deformation twin systems. Three twinning systems were operative depending on crystal orientation. The twinning behavior was discussed comparing with that in pure hcp metals. Microcracks initiated at the twin intersection. A large number of twin intersections were analyzed and classified into several types.


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