Anisotropy of dimensional change and its corresponding improvement by addition of TiH2 during elemental powder sintering of porous NiTi alloy

IMR OpenIR

	Anisotropy of dimensional change and its corresponding improvement by addition of TiH2 during elemental powder sintering of porous NiTi alloy
	B. Y. Li; L. J. Rong; Y. Y. Li
	1998
发表期刊	Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing
ISSN	0921-5093
卷号	255 期号:1-2 页码:70-74
摘要	The paper deals with the influence of TiH2 content and sintering conditions (sintering temperature and sintering time) on the dimensional changes and the radial/axial shrinkage (R/A)-ratio of powder compacts. The purpose was to try to find out how to make precision porous products using a conventional powder metallurgical process. It was found that the dimensions of the compact shrink and anisotropy of dimensional change (ADC) occurs during sintering. Addition of TiH2 markedly minimizes ADC and makes it possible to manufacture the desired final product shape. An R/A-ratio less than 1 is supposed to be attributed to the differences in the degree of mechanical deformation, which occurs on the surface of powder particles parallel to and perpendicular to the direction of pressing during the pressing process. A model of the pore changes during pressing and sintering is proposed. (C) 1998 Elsevier Science S.A. All rights reserved.
部门归属	chinese acad sci, inst met res, atom imaging solids lab, shenyang 110015, peoples r china.;li, by (reprint author), chinese acad sci, inst met res, atom imaging solids lab, shenyang 110015, peoples r china
关键词	Anisotropy Of Dimensional Changes Powder Sintering Porous Shape Memory Alloys Shape Memory Alloys Fabrication
URL	查看原文
WOS记录号	WOS:000076726500010
引用统计	被引频次：14[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/321006/37694
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	B. Y. Li,L. J. Rong,Y. Y. Li. Anisotropy of dimensional change and its corresponding improvement by addition of TiH2 during elemental powder sintering of porous NiTi alloy[J]. Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,1998,255(1-2):70-74.
APA	B. Y. Li,L. J. Rong,&Y. Y. Li.(1998).Anisotropy of dimensional change and its corresponding improvement by addition of TiH2 during elemental powder sintering of porous NiTi alloy.Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,255(1-2),70-74.
MLA	B. Y. Li,et al."Anisotropy of dimensional change and its corresponding improvement by addition of TiH2 during elemental powder sintering of porous NiTi alloy".Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing 255.1-2(1998):70-74.