The effect of Mo additions to high damping Ti-Ni-Nb shape memory alloys

IMR OpenIR

	The effect of Mo additions to high damping Ti-Ni-Nb shape memory alloys
	Y. Chen; H. C. Jiang; S. W. Liu; L. J. Rong; X. Q. Zhao
	2009
发表期刊	Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing
ISSN	0921-5093
卷号	512 期号:1-2 页码:26-31
摘要	The effect of Mo addition on the microstructure, phase transformation, mechanical behavior and damping capacity has been investigated. It is found that the Mo addition depresses the solubility of Nb in the TiNi matrix and results in abundant dispersive Nb-rich precipitation. The R-phase transformation is induced in Ti-Ni-9.0 at.%Nb alloys by the substitution of Mo for Ni. The yield strength and rupture strength increase with increasing Mo content due to the precipitation strengthening of Nb-rich particles and the solution strengthening of the Mo, while the elongation remains at a high level. With the increment of Mo content, the damping in the martensitic state and the damping during the phase transformation are enhanced. The increment of the martensite volume fraction and the presence of abundant Nb-rich particles are responsible for the high damping in the martensitic state. The improvement of the damping properties during the phase transformation is related to the volume fraction of the transformed martensite phase per unit time and the contribution of the R-phase transformation. (C) 2009 Elsevier B.V. All rights reserved.
部门归属	[chen, y.; jiang, h. c.; liu, s. w.; rong, l. j.] chinese acad sci, inst met res, shenyang 110016, peoples r china. [zhao, x. q.] beijing univ aeronaut & astronaut, sch mat sci & engn, beijing 100083, peoples r china.;jiang, hc (reprint author), chinese acad sci, inst met res, shenyang 110016, peoples r china;hcjiang@imr.ac.cn
关键词	Nitinb Alloys Damping Capacity Shape Memory Alloys Mechanical Behavior Phase-transformation Behavior Binary Cu
URL	查看原文
WOS记录号	WOS:000266577000004
引用统计	被引频次：26[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/321006/31835
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Y. Chen,H. C. Jiang,S. W. Liu,et al. The effect of Mo additions to high damping Ti-Ni-Nb shape memory alloys[J]. Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,2009,512(1-2):26-31.
APA	Y. Chen,H. C. Jiang,S. W. Liu,L. J. Rong,&X. Q. Zhao.(2009).The effect of Mo additions to high damping Ti-Ni-Nb shape memory alloys.Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,512(1-2),26-31.
MLA	Y. Chen,et al."The effect of Mo additions to high damping Ti-Ni-Nb shape memory alloys".Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing 512.1-2(2009):26-31.