Slip systems, dislocation structure and plastic deformation behavior of Nl3Tl single crystals with D024 structure

被引：1
|
作者：
Hagihara, K [1 ]
Nakano, T [1 ]
Umakoshi, Y [1 ]
机构：
[1] Osaka Univ, Grad Sch Engn, Dept Mat Sci & Engn, Suita, Osaka 5650871, Japan
来源：
THERMEC'2003, PTS 1-5 | 2003年 / 426-4卷
关键词：
Ni-based compound; anomalous strengthening; dislocation structure;
D O I：
10.4028/www.scientific.net/MSF.426-432.1709
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The plastic deformation behavior of Ni3Ti single crystals with the D0(24) structure was investigated in this study. {1(1) over bar 00}<11(2) over bar 0 > prism slip and (0001)<2(11) over bar 0 > basal slip were operative in Ni3Ti. Anomalous strengthening of yield stress was observed for both slip systems. Especially, a remarkable yield stress anomaly (YSA) was found for the (0001) basal slip system over a wide temperature range between 300 and 800degreesC. The YSA was attributed to the Kear-Wilsdorf locking of 1/3<2(11) over bar 0 > screw dislocations from the (0001) slip plane onto the {01(1) over bar 0} planes.
引用
收藏
页码：1709 / 1714
页数：6
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