A powder metallurgy method for manufacturing Ti-6Al-4V with wrought-like microstructures and mechanical properties via hydrogen sintering and phase transformation (HSPT)

SCRIPTA MATERIALIA

卷:107

Article

Paramore, James D.¹  Fang, Z. Zak¹  Sun, Pei¹  Koopman, Mark¹  Chandran, K. S. Ravi¹  Dunstan, Matt¹ 

[1] Univ Utah, Dept Met Engn, Salt Lake City, UT 84112 USA

关键词: Titanium alloys;    Sintering;    Grain refinement;    Phase transformation;    Microstructure;   

DOI  :  10.1016/j.scriptamat.2015.05.032

来源: Elsevier

【 摘 要 】

In this paper, the feasibility of producing Ti-6Al-4V with a range of wrought-like microstructures and mechanical properties via a novel powder metallurgy (PM) process with simple heat treatments is investigated. The wrought-like PM Ti-6Al-4V is obtained by sintering blended elemental (BE) powder in a hydrogen atmosphere, followed by conventional Ti-6Al-4V heat treating profiles. This is achieved without resorting to energy-intensive thermomechanical processing (TMP) that is compulsory for producing high performance titanium alloys via wrought processing or traditional powder metallurgy. (C) 2015 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

【 授权许可】

Free