Effect of heat treatment on the microstructure and mechanical properties of blended elemental Ti-6Al-4V produced by powder forging

被引：16

作者：

Jia, M. ^{[1
]}

Alshammari, Y. ^{[1
]}

Yang, F. ^{[1
]}

Bolzoni, L. ^{[1
]}

机构：

[1] Univ Waikato, Waikato Ctr Adv Mat & Mfg, Sch Engn, Hamilton 3240, New Zealand

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2020年 / 791卷

关键词：

Titanium alloys; Powder metallurgy; Blended elemental; Forging; Mechanical properties; METALLURGY TITANIUM;

D O I：

10.1016/j.msea.2020.139724

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

In this study, the Ti-6Al-4V alloy was produced by powder forging using the blended elemental plus vacuum sintering powder metallurgy approach. a+p forging and p forging were used to further consolidate the alloy, and the effect of various heat treatments on the microstructure and mechanical properties was investigated. The results showed that the level of consolidation was improved by increasing the forging temperature as the number and size of pores presented in the Ti-6Al-4V samples forged at 1250 degrees C were smaller than the one forged at 900 degrees C. Moreover, the applied heat treatments contributed to the pore reduction of Ti-6Al-4V sample forged at 900 degrees C. The microstructure and mechanical properties of as forged samples were affected by the heat treatment parameters, and the solution plus aging treatment (1000 degrees C/10 min + 700 degrees C/2 h) was regarded as an effective way to improve the tensile stress and ductility of the Ti-6Al-4V sample forged at 900 degrees C and at 1250 degrees C.

引用

页数：6

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