Amorphous martensite in beta-Ti alloys

IMR OpenIR

	Amorphous martensite in beta-Ti alloys
	Zhang, L; Zhang, HF; Ren, XB; Eckert, J; Wang, YD; Zhu, ZW; Gemming, T; Pauly, S; Zhang, HF (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China.; Ren, XB (reprint author), Xi An Jiao Tong Univ, Frontier Inst Sci & Technol, Multidisciplinary Mat Res Ctr, Xian 710049, Shaanxi, Peoples R China.; Ren, XB (reprint author), Natl Inst Mat Sci, Ferro Phys Grp, Tsukuba, Ibaraki 3050047, Japan.
	2018-02-06
发表期刊	NATURE COMMUNICATIONS
ISSN	2041-1723
卷号	9 页码:-
摘要	Martensitic transformations originate from a rigidity instability, which causes a crystal to change its lattice in a displacive manner. Here, we report that the martensitic transformation on cooling in Ti-Zr-Cu-Fe alloys yields an amorphous phase instead. Metastable beta-Ti partially transforms into an intragranular amorphous phase due to local lattice shear and distortion. The lenticular amorphous plates, which very much resemble alpha'/alpha ''. martensite in conventional Ti alloys, have a well-defined orientation relationship with the surrounding beta-Ti crystal. The present solid-state amorphization process is reversible, largely cooling rate independent and constitutes a rare case of congruent inverse melting. The observed combination of elastic softening and local lattice shear, thus, is the unifying mechanism underlying both martensitic transformations and catastrophic (inverse) melting. Not only do we reveal an alternative mechanism for solid-state amorphization but also establish an explicit experimental link between martensitic transformations and catastrophic melting.; Martensitic transformations originate from a rigidity instability, which causes a crystal to change its lattice in a displacive manner. Here, we report that the martensitic transformation on cooling in Ti-Zr-Cu-Fe alloys yields an amorphous phase instead. Metastable beta-Ti partially transforms into an intragranular amorphous phase due to local lattice shear and distortion. The lenticular amorphous plates, which very much resemble alpha'/alpha ''. martensite in conventional Ti alloys, have a well-defined orientation relationship with the surrounding beta-Ti crystal. The present solid-state amorphization process is reversible, largely cooling rate independent and constitutes a rare case of congruent inverse melting. The observed combination of elastic softening and local lattice shear, thus, is the unifying mechanism underlying both martensitic transformations and catastrophic (inverse) melting. Not only do we reveal an alternative mechanism for solid-state amorphization but also establish an explicit experimental link between martensitic transformations and catastrophic melting.
部门归属	[zhang, long ; zhang, haifeng ; zhu, zhengwang] chinese acad sci, inst met res, shenyang natl lab mat sci, 72 wenhua rd, shenyang 110016, liaoning, peoples r china ; [zhang, long ; gemming, thomas ; pauly, simon] ifw dresden, inst complex mat, helmholtzstr 20, d-01069 dresden, germany ; [ren, xiaobing] xi an jiao tong univ, frontier inst sci & technol, multidisciplinary mat res ctr, xian 710049, shaanxi, peoples r china ; [ren, xiaobing] natl inst mat sci, ferro phys grp, tsukuba, ibaraki 3050047, japan ; [eckert, juergen] austrian acad sci, erich schmid inst mat sci, jahnstr 12, a-8700 leoben, austria ; [eckert, juergen] univ leoben, dept mat phys, jahnstr 12, a-8700 leoben, austria ; [wang, yandong] univ sci & technol beijing, state key lab adv met & mat, beijing 100083, peoples r china
关键词	Pressure-induced Amorphization Solid-state Amorphization Metallic Glasses Transformation Crystal Titanium Silicon Liquid Phase Thermodynamics
学科领域	Multidisciplinary Sciences
资助者	National Natural Science Foundation of China [51434008, 51790484, 51701213, 51431007, 51231002]; German Science Foundation (DFG) [PA 2275/2-1]; Leibniz Program [EC 111/26-1]; European Research Council under the ERC Advanced Grant INTELHYB [ERC-2013-ADG-340025]; China Scholarship Council (CSC)
收录类别	SCI
语种	英语
WOS记录号	WOS:000424291600002
引用统计	被引频次：36[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/321006/79521
专题	中国科学院金属研究所
通讯作者	Zhang, HF (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China.; Ren, XB (reprint author), Xi An Jiao Tong Univ, Frontier Inst Sci & Technol, Multidisciplinary Mat Res Ctr, Xian 710049, Shaanxi, Peoples R China.; Ren, XB (reprint author), Natl Inst Mat Sci, Ferro Phys Grp, Tsukuba, Ibaraki 3050047, Japan.
推荐引用方式 GB/T 7714	Zhang, L,Zhang, HF,Ren, XB,et al. Amorphous martensite in beta-Ti alloys[J]. NATURE COMMUNICATIONS,2018,9:-.
APA	Zhang, L.,Zhang, HF.,Ren, XB.,Eckert, J.,Wang, YD.,...&Ren, XB .(2018).Amorphous martensite in beta-Ti alloys.NATURE COMMUNICATIONS,9,-.
MLA	Zhang, L,et al."Amorphous martensite in beta-Ti alloys".NATURE COMMUNICATIONS 9(2018):-.