MECHANICAL PROPERTIES OF Ti-6Al-4V RODS PRODUCED BY POWDER COMPACT EXTRUSION

被引：0

作者：

Singh, Ajit Pal ^{[1
]}

Gabbitas, Brian ^{[1
]}

Torrens, Rob ^{[1
]}

Yang, Fei ^{[1
]}

Mukhtar, Aamir ^{[2
]}

机构：

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

[2] Titanium Ind Dev Assoc Inc TiDA, Tauranga, New Zealand

来源：

TMS 2014 SUPPLEMENTAL PROCEEDINGS | 2014年

关键词：

Titanium alloy; powder metallurgy; blended elemental approach; impact toughness; tensile properties; micro-hardness; microstructure and fracture surfaces; METALLURGY; ALLOY;

D O I：

暂无

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

This paper describes the mechanical properties of Ti-6Al-4V alloy produced by consolidation of a blended powder mixture of elemental hydride-dehydride (HDH) titanium powder and master alloy (60Al-40V) powder. The warm pressed compacts of blended powders were sintered using a vacuum sintering furnace prior to the extrusion process. Impact toughness and micro-hardness were measured using as extruded Ti-6Al-4V alloy rod with an extrusion ratio 9:1. In addition, tensile testing was performed on extruded rod with an extrusion ratio 25:1. Detailed work was performed using optical microscopy and scanning electron microscopy to explore the microstructure and fracture surfaces of the tested material. The tensile properties of as extruded Ti-6Al-4V rod were found to be comparable with corresponding literature values of wrought material. However, impact toughness was found to be lower than published data. Some possible reasons contributing to the measured mechanical properties of the Ti-6Al-4V rods in this study are discussed.

引用

页码：605 / 612

页数：8

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