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Materials and Manufacturing Processes Volume 33, 2018 - Issue 16
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Articles

The powder metallurgy performance of Ti-1Al-8V-5Fe alloys with unsaturated titanium hydride

Yanan ZhangSchool of Aeronautics and Astronautics, Sichuan University, Chengdu, China
,
Zhong ZhangCollege of Materials Science and Engineering, Sichuan University, Chengdu, China
,
Shaopeng LiuCollege of Materials Science and Engineering, Sichuan University, Chengdu, China
,
Yuhang WeiCollege of Materials Science and Engineering, Sichuan University, Chengdu, China
,
Sufen XiaoCollege of Materials Science and Engineering, Sichuan University, Chengdu, China
&
Yungui ChenCollege of Materials Science and Engineering, Sichuan University, Chengdu, ChinaCorrespondence[email protected]
ORCID Iconhttp://orcid.org/0000-0001-8403-7289
ORCID Icon
Pages 1830-1834 | Received 13 Nov 2017, Accepted 18 Mar 2018, Published online: 24 May 2018
 
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ABSTRACT

The high-strength Ti-1Al-8V-5Fe alloy is synthesized with separately unsaturated titanium hydride, TiH1.5, powders and saturated titanium hydride, TiH2, powders, via cold compaction and sintering powder metallurgy process. The results show that the Ti-185 alloys with TiH2 or TiH1.5 powders have similar mechanical performances after compacted at 1000 MPa and sintering at 1350°C for 2 h. Whereas Ti-185 alloy based on TiH1.5 presents better economically advantageous and compressive formability, and the sintered density is 4.58 g cm−3 (relative density is 98.5%), which is a potential candidate to prepare high-densification and low-cost Ti-185 alloy in the future market.

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