Effect of phase transition caused by different treatment process on mechanical properties of powder metallurgy Ti-22Al-24Nb-0.5Mo (at.%) alloys

doi:10.1016/j.matchar.2019.110022

CORC > 金属研究所 > 中国科学院金属研究所

	Effect of phase transition caused by different treatment process on mechanical properties of powder metallurgy Ti-22Al-24Nb-0.5Mo (at.%) alloys
	Shao, Z. J.1; Li, Y.1,3; Zhou, B.1; Zhang, S. Z.1,3; Xu, L.2
刊名	MATERIALS CHARACTERIZATION
	2020
卷号	159 页码:8
关键词	Ti-22Al-24Nb-0.5Mo alloy Thermomechanical treatment Microstructure Ti2AlNb phase Mechanical properties
ISSN号	1044-5803
DOI	10.1016/j.matchar.2019.110022
通讯作者	Zhang, S. Z.(szzhangyt@163.com) ; Xu, L.(lxu@imr.ac.cn)
英文摘要	The microstructural evolution and mechanical properties of powder metallurgy (PM) Ti-22Al-24Nb-0.5Mo prepared by combination of hot isostatic pressing (HIP), ring rolling, and heat treatment were investigated. The density and micropore distributions of PM alloys under HIP are relatively homogeneous. Ring rolled and solution treatment in the (alpha(2) + B2 + O) region led to the refinement of grain size and long lath O phase and alpha(2) phase mostly located at the grain boundaries. Aging treatment in the (B2 + O) region caused the occurrence of peritectoid reaction B2 + alpha(2) -> O owing to the segregation of the Nb element and refined the acicular O phase. The mechanical properties of PM alloys varied with the size and volume fraction of O phase and alpha(2) phase. The long lath O phases improve the elongation and acicular O precipitates are benefit to the elevation of alloy strength.
资助项目	Natural Science Foundation of Shandong Province, China[ZR2019MEM012]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	ELSEVIER SCIENCE INC
WOS记录号	WOS:000509819000054
资助机构	Natural Science Foundation of Shandong Province, China
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/137600]
专题	金属研究所_中国科学院金属研究所
通讯作者	Zhang, S. Z.; Xu, L.
作者单位	1.Yantai Univ, Sch Nucl Equipment & Nucl Engn, Yantai 264005, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 3.Yantai Univ, Inst Adv Studies Precis Mat, Yantai 264005, Peoples R China
推荐引用方式 GB/T 7714	Shao, Z. J.,Li, Y.,Zhou, B.,et al. Effect of phase transition caused by different treatment process on mechanical properties of powder metallurgy Ti-22Al-24Nb-0.5Mo (at.%) alloys[J]. MATERIALS CHARACTERIZATION,2020,159:8.
APA	Shao, Z. J.,Li, Y.,Zhou, B.,Zhang, S. Z.,&Xu, L..(2020).Effect of phase transition caused by different treatment process on mechanical properties of powder metallurgy Ti-22Al-24Nb-0.5Mo (at.%) alloys.MATERIALS CHARACTERIZATION,159,8.
MLA	Shao, Z. J.,et al."Effect of phase transition caused by different treatment process on mechanical properties of powder metallurgy Ti-22Al-24Nb-0.5Mo (at.%) alloys".MATERIALS CHARACTERIZATION 159(2020):8.