A comparison of the ideal strength between L1(2)Co(3)(Al,W) and Ni3Al under tension and shear from first-principles calculations

doi:10.1063/1.3170752

IMR OpenIR

	A comparison of the ideal strength between L1(2)Co(3)(Al,W) and Ni3Al under tension and shear from first-principles calculations
	Wang, Yun-Jiang 1; Wang, Chong-Yu 1,2
通讯作者	Wang, Yun-Jiang(wangyunjiang05@mails.tsinghua.edu.cn)
	2009-06-29
发表期刊	APPLIED PHYSICS LETTERS
ISSN	0003-6951
卷号	94 期号:26 页码:3
摘要	The ideal strengths of L1(2)Co(3)(Al,W) in comparison with Ni3Al are investigated using the first-principles method. Results for the stress-strain relationships, ideal tensile and shear strengths are presented. The calculated elastic properties agree well with the experimental observations. Co-3(Al,W) is found to have larger moduli and higher strengths, but less ductile than Ni3Al. The electronic structures indicate the directional covalentlike Co-W bonding through d-d hybridization is the origin of excellent mechanical properties of Co-3(Al,W).
关键词	ab initio calculations aluminium alloys cobalt alloys ductility elastic moduli electronic structure nickel alloys shear strength stress-strain relations tungsten alloys
资助者	973 Project (Ministry of Science and Technology of China
DOI	10.1063/1.3170752
收录类别	SCI
语种	英语
资助项目	973 Project (Ministry of Science and Technology of China[2006CB605102]
WOS研究方向	Physics
WOS类目	Physics, Applied
WOS记录号	WOS:000267697300017
出版者	AMER INST PHYSICS
引用统计	被引频次：67[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/321006/99140
专题	中国科学院金属研究所
通讯作者	Wang, Yun-Jiang
作者单位	1.Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China 2.Chinese Acad Sci, Int Ctr Mat Phys, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Wang, Yun-Jiang,Wang, Chong-Yu. A comparison of the ideal strength between L1(2)Co(3)(Al,W) and Ni3Al under tension and shear from first-principles calculations[J]. APPLIED PHYSICS LETTERS,2009,94(26):3.
APA	Wang, Yun-Jiang,&Wang, Chong-Yu.(2009).A comparison of the ideal strength between L1(2)Co(3)(Al,W) and Ni3Al under tension and shear from first-principles calculations.APPLIED PHYSICS LETTERS,94(26),3.
MLA	Wang, Yun-Jiang,et al."A comparison of the ideal strength between L1(2)Co(3)(Al,W) and Ni3Al under tension and shear from first-principles calculations".APPLIED PHYSICS LETTERS 94.26(2009):3.