Motion of misfit dislocation in an Ni/Ni(3)Al interface: a molecular dynamics simulations study

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	Motion of misfit dislocation in an Ni/Ni(3)Al interface: a molecular dynamics simulations study
	H. X. Xie; C. Y. Wang; T. Yu
	2009
发表期刊	Modelling and Simulation in Materials Science and Engineering
ISSN	0965-0393
卷号	17 期号:5
摘要	Motion of misfit dislocation in an Ni/Ni(3)Al interface is studied in periodic simulation cells subjected to applied shear stress. Three different motion mechanisms of the misfit dislocation have been observed. The simulation results show that at low stress, the motion of misfit dislocation occurs through the nucleation and propagation of the double kinks; however, at higher stress, the motion of misfit dislocation is obstructed by an intrinsic stacking fault. The simulation results suggest that the stability of the Ni/Ni(3)Al interface strongly relates to the interaction of the misfit dislocations that are perpendicular to each other.
部门归属	[xie, hong-xian; wang, chong-yu; yu, tao] cent iron & steel res inst, beijing 100081, peoples r china. [wang, chong-yu] tsinghua univ, dept phys, beijing 100084, peoples r china. [wang, chong-yu] acad sinica, int ctr mat phys, shenyang 110016, peoples r china.;xie, hx (reprint author), cent iron & steel res inst, beijing 100081, peoples r china;hongxianxie@163.com
关键词	Single-crystal Superalloy Screw Dislocations Gamma'-phase Bcc Metals Plasticity Networks Lattice Ni3al Kinks Flow
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/32448
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	H. X. Xie,C. Y. Wang,T. Yu. Motion of misfit dislocation in an Ni/Ni(3)Al interface: a molecular dynamics simulations study[J]. Modelling and Simulation in Materials Science and Engineering,2009,17(5).
APA	H. X. Xie,C. Y. Wang,&T. Yu.(2009).Motion of misfit dislocation in an Ni/Ni(3)Al interface: a molecular dynamics simulations study.Modelling and Simulation in Materials Science and Engineering,17(5).
MLA	H. X. Xie,et al."Motion of misfit dislocation in an Ni/Ni(3)Al interface: a molecular dynamics simulations study".Modelling and Simulation in Materials Science and Engineering 17.5(2009).