Effect of short-time direct current heating on phase transformation and   superelasticity of Ti-50.8at.%Ni alloy

doi:10.1016/j.jallcom.2008.10.131

CORC > 北京大学 > 工学院

	Effect of short-time direct current heating on phase transformation and superelasticity of Ti-50.8at.%Ni alloy
	Wang, Y. B. ; Zheng, Y. F. ; Liu, Y.
刊名	journal of alloys and compounds
	2009
关键词	Shape memory alloys DC heating Nickel-titanium Arch wires Mechanical property SHAPE-MEMORY ALLOY NITI BEHAVIOR WIRE
DOI	10.1016/j.jallcom.2008.10.131
英文摘要	The aim of this study was to investigate the effect of short-time DC heating on the phase transformation and superelasticity of a Ti-50.8at.%Ni alloy, which is extensively used as orthodontics arch wires. The alloy was pre-treated in three different conditions prior to the DC heating, including 15% cold-rolling (as-received), 15% cold-rolling and 673 K ageing (aged) and 15% cold-rolling and 973 K annealing (annealed). DC heating was performed using a Shinwa Bender Soarer-II equipment. DSC, XRD and tensile tests were employed to study the alloy's phase transformation behaviour, phase constituents, and superelasticity, respectively. It was found that the aged samples were sensitive to the short-time DC heating treatment and the dissolution of Ti(3)Ni(4) precipitates into TiNi matrix completed within 15 s. In contrast, the as-received and the annealed samples showed little response to the DC heating. Such findings are of direct relevance to applications of TiNi as orthodontic arch wires, which often involve rapid electrical heating for shape setting. (c) 2008 Elsevier B.V. All rights reserved.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000266386400151&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Chemistry, Physical; Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering; SCI(E); 11; ARTICLE; 1-2; 764-767; 477
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/154919]
专题	工学院
推荐引用方式 GB/T 7714	Wang, Y. B.,Zheng, Y. F.,Liu, Y.. Effect of short-time direct current heating on phase transformation and superelasticity of Ti-50.8at.%Ni alloy[J]. journal of alloys and compounds,2009.
APA	Wang, Y. B.,Zheng, Y. F.,&Liu, Y..(2009).Effect of short-time direct current heating on phase transformation and superelasticity of Ti-50.8at.%Ni alloy.journal of alloys and compounds.
MLA	Wang, Y. B.,et al."Effect of short-time direct current heating on phase transformation and superelasticity of Ti-50.8at.%Ni alloy".journal of alloys and compounds (2009).