Microstructure and mechanical properties of powder metallurgy Ti-22Al-24Nb-0.5Mo (at.%) alloys

被引：0
作者：
Wu, J. [1 ]
Xu, L. [1 ]
Guo, R.P. [1 ]
Lu, Z.G. [1 ]
Cui, Y.Y. [1 ]
Yang, R. [1 ]
机构：
[1] Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang
来源：
Materials Research Innovations | 2015年 / 19卷
关键词：
Hot isostatic pressing; Mechanical properties; Porosity; Pre-alloyed powder; Ti2AlNb alloy;
D O I：
10.1179/1432891715Z.0000000001916
中图分类号：
学科分类号：
摘要：
The Ti-22Al-24Nb-0.5Mo (atomic fraction, %) pre-alloyed powder was produced by gas atomisation. Powder metallurgy Ti2AlNb alloys were prepared by a hot isostatic pressing procedure. The influence of experimental variables including hipping temperatures, solution and aging temperatures on microstructure and properties of powder metallurgy Ti2AlNb alloys was assessed. The experimental results showed that hipping temperature affected the porosity distribution and mechanical properties of powder metallurgy Ti2AlNb alloys. Good comprehensive mechanical properties (tensile strength, ductility and rupture lifetime) could be obtained through an optimised heat treatment process. © W. S. Maney & Son Ltd 2015.
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页码：S946 / S949
页数：3
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