Powder Size Influence on Tensile Properties and Porosity for PM Ti2AlNb Alloy Prepared by Hot Isostatic Pressing

doi:10.1007/s40195-019-00928-w

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	Powder Size Influence on Tensile Properties and Porosity for PM Ti2AlNb Alloy Prepared by Hot Isostatic Pressing
	Lu, Zheng-Guan 1,2; Wu, Jie 1; Xu, Lei 1; Yang, Rui 1
刊名	ACTA METALLURGICA SINICA-ENGLISH LETTERS
	2019-11-01
卷号	32 期号:11 页码:1329-1336
关键词	Ti2AlNb alloy Powder metallurgy Powder size distribution Hot isostatic pressing
ISSN号	1006-7191
DOI	10.1007/s40195-019-00928-w
通讯作者	Xu, Lei(lxu@imr.ac.cn)
英文摘要	Pre-alloyed powder of Ti2AlNb alloy was prepared by electrode induction gas atomization method, and the powder was screened into five kinds of powder size distribution. Fully dense Ti2AlNb alloy was prepared by powder metallurgy (PM) using hot isostatic pressing. The properties of pre-alloyed powder and PM Ti2AlNb alloy were tested. Results show that mean grain size of PM Ti2AlNb alloy is influenced by powder particle size, but particle size has no significant influence on tensile properties. Finer Ti2AlNb powder has low Argon gas bubble ratio and high oxygen content, and poor flowability of finer powder increases the degree of difficulty during degassing. As a result, big pores (> 50 mu m) are observed in PM Ti2AlNb alloy prepared by finer powder and cause plasticity loss of tensile properties. In order to get a better comprehensive properties of PM Ti2AlNb alloy, powder with an average size (similar to 100 mu m) is suggested.
WOS研究方向	Metallurgy & Metallurgical Engineering
语种	英语
出版者	CHINESE ACAD SCIENCES, INST METAL RESEARCH
WOS记录号	WOS:000488930700003
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/135580]
专题	金属研究所_中国科学院金属研究所
通讯作者	Xu, Lei
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Liaoning, Peoples R China
推荐引用方式 GB/T 7714	Lu, Zheng-Guan,Wu, Jie,Xu, Lei,et al. Powder Size Influence on Tensile Properties and Porosity for PM Ti2AlNb Alloy Prepared by Hot Isostatic Pressing[J]. ACTA METALLURGICA SINICA-ENGLISH LETTERS,2019,32(11):1329-1336.
APA	Lu, Zheng-Guan,Wu, Jie,Xu, Lei,&Yang, Rui.(2019).Powder Size Influence on Tensile Properties and Porosity for PM Ti2AlNb Alloy Prepared by Hot Isostatic Pressing.ACTA METALLURGICA SINICA-ENGLISH LETTERS,32(11),1329-1336.
MLA	Lu, Zheng-Guan,et al."Powder Size Influence on Tensile Properties and Porosity for PM Ti2AlNb Alloy Prepared by Hot Isostatic Pressing".ACTA METALLURGICA SINICA-ENGLISH LETTERS 32.11(2019):1329-1336.