Change in microstructures and mechanical properties of biomedical Ti-Nb-Ta-Zr system alloy through cross-rolling

被引：14

作者：

Wang, Liqiang ^{[1
]}

Lu, Weijie ^{[1
]}

Qin, Jining ^{[1
]}

Zhang, Fan ^{[1
]}

Zhang, Di ^{[1
]}

机构：

[1] Shanghai Jiao Tong Univ, State Key Lab Met Matrix Composites, Shanghai 200240, Peoples R China

来源：

MATERIALS TRANSACTIONS | 2008年 / 49卷 / 08期

关键词：

beta-type titanium alloys; phase transitions; anisotropy; plastic deformation; Young's modulus; tensile properties;

D O I：

10.2320/matertrans.MRA2008040

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The microstructures and mechanical properties of Ti-35Nb-2Ta-3Zr alloy, which was fabricated by vacuum consumable arc melting furnace followed by hot pressing, subjected to cross-rolling were investigated in this study. Shear slip and stress-induced alpha '' martensite phase transformation play an important role in the plastic deformation. Hundred nanometers-sized grains are obtained, when the alloy is cross-rolled at a reduction ratio of 99%. The cross-rolled alloy exhibits considerable low Young's modulus (around 48 GPa) and high ultimate tensile strength (around 880 MPa) accompanying with ductile fracture. For Ti-35Nb-2Ta-3Zr alloy cross-rolled at a reduction ratio of 60%, excellent isotropy of mechanical properties along different directions of specimens are obtained.

引用

页码：1791 / 1795

页数：5

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