Effect of powder compact holding time on the microstructure and properties of Ti-6Al-4V alloy produced by powder compact extrusion of a powder mixture of HDH titanium and Al-V master alloy

被引：5

作者：

Yang, Fei ^{[1
]}

Zhang, Deliang ^{[1
]}

Gabittas, Brian ^{[1
]}

Lu, Huiyang ^{[1
]}

机构：

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

来源：

COST-AFFORDABLE TITANIUM IV | 2013年 / 551卷

关键词：

Titanium alloy; extrusion; microstructure; mechanical properties; MECHANICAL-PROPERTIES;

D O I：

10.4028/www.scientific.net/KEM.551.67

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

Ti-6Al-4V (wt%) alloy rods were prepared successfully using a low-cost method that combines mixing HDH titanium, elemental aluminum and Al-V master alloy powders and powder compact extrusion. The microstructure and mechanical properties of Ti-6Al-4V alloy and the effects of powder compact holding time on them were investigated. The results showed that powder compact holding time had a significant effect on the microstructure and mechanical properties of the extruded Ti-6Al-4V alloy rods. With increasing powder compact holding time from 2 to 10 min., the microstructure of the extruded rods became more homogeneous, and their UTS decreased from 1300 to 1215MPa and the elongation to fracture increased from 7.1 to 10.2%. The tensile properties of the Ti-6Al-4V alloy rods produced by powder compact extrusion of the powder mixture are comparable to those of Ti-6Al-4V alloy produced by ingot metallurgy and thermomechanical processing.

引用

页码：67 / 72

页数：6

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