Interplay between temperature and composition effects on the martensitic transformation in Ni2+xMn1-xGa alloys

doi:10.1063/1.3603935

IMR OpenIR

	Interplay between temperature and composition effects on the martensitic transformation in Ni2+xMn1-xGa alloys
	Li, Chun-Mei 1,2; Hu, Qing-Miao 1; Yang, Rui 1; Johansson, Borje 2,3,4,5; Vitos, Levente 2,3,6
通讯作者	Hu, Qing-Miao(qmhu@imr.ac.cn)
	2011-06-27
发表期刊	APPLIED PHYSICS LETTERS
ISSN	0003-6951
卷号	98 期号:26 页码:3
摘要	Martensitic transformation in Ni2+xMn1-xGa alloys is known to be controlled by the soft tetragonal elastic constant C' of the high-temperature austenitic phase. The temperature (T) and composition (x) dependence of C'(T, x) are calculated using the first-principles exact muffin-tin orbitals method. We show that the temperature factor of C' is dominated by the phonon-smearing term. The competition between the negative alloying effect (partial derivative C'/partial derivative x < 0) and the positive temperature effect (partial derivative C'/partial derivative T > 0) is found to lead to nearly constant C'(T-M(x), x) at the critical temperature TM(x). We demonstrate that a proper account of the temperature and composition dependence of C'(T, x) is indispensable for reasonable theoretical TM(x) values. VC 2011 American Institute of Physics. [doi: 10.1063/1.3603935]
资助者	Swedish Research Council ; Swedish Steel Producers' Association ; Carl Tryggers Foundation ; Goran Gustafsson Foundation ; Hungarian Scientific Research Fund ; MoST of China ; NSFC
DOI	10.1063/1.3603935
收录类别	SCI
语种	英语
资助项目	Swedish Research Council ; Swedish Steel Producers' Association ; Carl Tryggers Foundation ; Goran Gustafsson Foundation ; Hungarian Scientific Research Fund[OTKA 84078] ; MoST of China[2011CB606404] ; NSFC[50871114]
WOS研究方向	Physics
WOS类目	Physics, Applied
WOS记录号	WOS:000292335700013
出版者	AMER INST PHYSICS
引用统计	被引频次：12[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/321006/106428
专题	中国科学院金属研究所
通讯作者	Hu, Qing-Miao
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 2.Royal Inst Technol, Dept Mat Sci & Engn, SE-10044 Stockholm, Sweden 3.Uppsala Univ, Dept Phys, Condensed Matter Theory Grp, SE-75120 Uppsala, Sweden 4.Dalian Univ Technol, Sch Phys & Optoelect Technol, Dalian 116024, Peoples R China 5.Dalian Univ Technol, Coll Adv Sci & Technol, Dalian 116024, Peoples R China 6.Res Inst Solid State Phys & Opt, H-1525 Budapest, Hungary
推荐引用方式 GB/T 7714	Li, Chun-Mei,Hu, Qing-Miao,Yang, Rui,et al. Interplay between temperature and composition effects on the martensitic transformation in Ni2+xMn1-xGa alloys[J]. APPLIED PHYSICS LETTERS,2011,98(26):3.
APA	Li, Chun-Mei,Hu, Qing-Miao,Yang, Rui,Johansson, Borje,&Vitos, Levente.(2011).Interplay between temperature and composition effects on the martensitic transformation in Ni2+xMn1-xGa alloys.APPLIED PHYSICS LETTERS,98(26),3.
MLA	Li, Chun-Mei,et al."Interplay between temperature and composition effects on the martensitic transformation in Ni2+xMn1-xGa alloys".APPLIED PHYSICS LETTERS 98.26(2011):3.