The effect of Al content on tensile and fatigue properties of solution-treated and quenched Ti-13Cr-Fe alloys

被引:4
作者
Ogawa, Michiharu [1 ]
Shimizu, Tetsuya
Noda, Toshiharu
Ikeda, Masahiko
机构
[1] Daido Steel Co Ltd, Device Res Lab, Nagoya, Aichi 4578545, Japan
[2] Kansai Univ, FSC, Fac Engn, Dept Mat Sci & Engn, Suita, Osaka 5648680, Japan
关键词
titanium-chromium-iron-aluminum alloy; healthcare and welfare goods; electrical resistivity; tensile strength; fatigue; athermal omega;
D O I
10.2320/matertrans.48.390
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The effect of Al content on tensile and fatigue properties of Ti-13Cr-1Fe alloys was investigated by measurement of electrical resistivity and Vickers hardness, X-ray diffractometry (XRD), and tensile and fatigue tests. Only beta reflection was detected by XRD in all alloys quenched from 1173 K. Resistivity at room and liquid nitrogen temperatures increased monotonically with Al content. Vickers hardness slightly increased with Al content up to 4.5 mass%. In 6.0 mass%Al, the Vickers hardness increased dramatically. In 0 mass%Al and 3.0 mass%Al, the tensile strength (90 and 0.2% proof stress (sigma(0.2)) remained almost constant. Above 4.5 mass%, sigma(B) and sigma(0.2) increased with increasing Al content. S-N curves in high cycle fatigue test of 0 mass%Al and 3.0 mass%Al showed almost the same behavior. The stress at 10(7) cycles, i.e. the fatigue strength, was around 460 MPa.
引用
收藏
页码:390 / 394
页数:5
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