Cyclic deformation behavior and dislocation structures of [001] copper single crystals—I Cyclic stress-strain response and surface feature

1997 ◽  
Vol 45 (4) ◽  
pp. 1365-1377 ◽  
Author(s):  
Bo Gong ◽  
Zhirui Wang ◽  
Zhongguang Wang
Keyword(s):  
Single Crystals ◽  
Cyclic Deformation ◽  
Deformation Behavior ◽  
Cyclic Stress ◽  
Surface Feature ◽  
Strain Response ◽  
Stress Strain ◽  
Copper Single Crystals

CYCLIC DEFORMATION BEHAVIOR OF AGED FeNiCoAlTa SINGLE CRYSTALS

2012 ◽  
Vol 05 (04) ◽  
pp. 1250045 ◽  
Author(s):  
P. KROOß ◽  
T. NIENDORF ◽  
I. KARAMAN ◽  
Y. CHUMLYAKOV ◽  
H. J. MAIER
Keyword(s):  
Shape Memory ◽  
Single Crystals ◽  
Cyclic Deformation ◽  
Deformation Behavior ◽  
Cyclic Stress ◽  
Strain Response ◽  
Stress Strain ◽  
Enhanced Resistance ◽  
Dog Bone ◽  
Cyclic Degradation

The cyclic deformation behavior of [001] oriented Fe-28Ni-17Co-11.5Al-2.5Ta (at.%) shape memory single crystals was investigated under tension. Dog-bone shaped specimens were tested up to 100 cycles after different aging heat treatments in order to characterize the cyclic stress–strain response and functional degradation. The smaller particles formed as a consequence of short aging for 1 h at 700°C, as compared to longer aging for 7 h, resulted in significantly enhanced resistance to cyclic degradation.

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