The orientation and temperature dependences of dislocation velocity in Ni3Al single crystals

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	The orientation and temperature dependences of dislocation velocity in Ni3Al single crystals
	Z. F. Zhang ; C. B. Jiang ; S. D. Wu ; S. Patu
刊名	Philosophical Magazine Letters
	2003
卷号	83 期号:9 页码:563-568
关键词	alloys mobility
ISSN号	0950-0839
中文摘要	The average velocities of screw dislocations in Ni3Al single crystals have been directly measured as a function of resolved shear stress (RSS) and orientation in the temperature domain of the flow stress anomaly using the etch-pit technique. The velocity was found to be extremely sensitive to the RSS in all cases. In contrast with ordinary metals, the screw dislocation velocities in Ni3Al show anomalous behaviour; under a constant RSS, the velocities decrease dramatically with increasing temperature. Furthermore, the velocities and the tension compression asymmetry of the velocities depend on the orientation of applied stress.
原文出处	://WOS:000184920300004
公开日期	2012-04-14
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/36192]
专题	金属研究所_中国科学院金属研究所
推荐引用方式 GB/T 7714	Z. F. Zhang,C. B. Jiang,S. D. Wu,et al. The orientation and temperature dependences of dislocation velocity in Ni3Al single crystals[J]. Philosophical Magazine Letters,2003,83(9):563-568.
APA	Z. F. Zhang,C. B. Jiang,S. D. Wu,&S. Patu.(2003).The orientation and temperature dependences of dislocation velocity in Ni3Al single crystals.Philosophical Magazine Letters,83(9),563-568.
MLA	Z. F. Zhang,et al."The orientation and temperature dependences of dislocation velocity in Ni3Al single crystals".Philosophical Magazine Letters 83.9(2003):563-568.