Bonding strength of Ni/Ni3Al interface with different lattice misfit

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	Bonding strength of Ni/Ni3Al interface with different lattice misfit
	P. Peng; C. X. Zheng; S. C. Han; Z. H. Jin; R. Yang; Z. Q. Hu
	2003
发表期刊	Journal of Materials Science & Technology
ISSN	1005-0302
卷号	19 页码:26-28
摘要	The interfacial binding covalent bond density (CBD) and the local environmental total bond order (LTBO) of the Ni/Ni3Al interface with different lattice misfits (delta) were calculated by using first-principles discrete variation X-alpha method. It was found that the effects of lattice misfits on the electronic structures of incoherent Ni/Ni3Al interface were very obvious. On one hand, less than -0.6% negative lattice misfit can promote the binding strength of gamma/gamma' interface. On the other hand, the total bonding strength of gamma/gamma' interface decreases with increasing delta. Therefore, the magnitude and sign of lattice misfit must be carefully controlled for balancing the high temperature creep strength of Ni-base single crystal superalloy and the structural stability of gamma/gamma' interface when one designs a new Ni-base single crystal superalloy.
部门归属	hunan univ, mat sci & engn coll, changsha 410082, peoples r china. chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. chinese acad sci, met res inst, titanium alloy lab, shenyang 110016, peoples r china.;peng, p (reprint author), hunan univ, mat sci & engn coll, changsha 410082, peoples r china;ppeng@imr.ac.cn
关键词	Gamma/gamma ' Interface Lattice Misfit Dv-x-alpha Method First-principles Calculation Single-crystal Superalloy Creep Deformation Electronic-structure
URL	查看原文
WOS记录号	WOS:000220898800008
引用统计	被引频次：1[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/35994
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	P. Peng,C. X. Zheng,S. C. Han,et al. Bonding strength of Ni/Ni3Al interface with different lattice misfit[J]. Journal of Materials Science & Technology,2003,19:26-28.
APA	P. Peng,C. X. Zheng,S. C. Han,Z. H. Jin,R. Yang,&Z. Q. Hu.(2003).Bonding strength of Ni/Ni3Al interface with different lattice misfit.Journal of Materials Science & Technology,19,26-28.
MLA	P. Peng,et al."Bonding strength of Ni/Ni3Al interface with different lattice misfit".Journal of Materials Science & Technology 19(2003):26-28.