Microstructure refinement of a dual phase titanium alloy by severe room temperature compression

被引：10

作者：

Zhang Zhi-qiang ^{[1
]}

Dong Li-min ^{[1
]}

Yang Yang ^{[1
]}

Guan Shao-xuan ^{[1
]}

Liu Yu-yin ^{[1
]}

Yang Rui ^{[1
]}

机构：

[1] Chinese Acad my Sci, Inst Met Res, Shenyang 110016, Peoples R China

来源：

TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA | 2012年 / 22卷 / 11期

关键词：

dual phase titanium alloy; Ti-3Al-4.5V-5Mo alloy; severe plastic deformation; microstructure refinement; nanocrystalline grains; texture; MECHANICAL-PROPERTIES; PLASTIC-DEFORMATION; PRINCIPLES; BEHAVIOR;

D O I：

10.1016/S1003-6326(11)61506-9

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

Microstructure refinement of a dual phase titanium alloy, Ti-3Al-4.5V-5Mo, by severe room temperature compression was investigated. Nanocrystalline grains were observed in the sample with 75% reduction, in which the grain sizes of alpha phase and beta phase were approximately 50 and 100 nm. Conversely, the average thicknesses of alpha phase and beta phase in as-received microstructure were measured to be 0.7 and 0.5 mu m, respectively. TEM and XRD methods were used to analyze the microstructure and texture changes after severe deformation. Microstructure refinement was deduced to the complex interaction among slip dislocations in the alpha phase, the complex interaction among slip dislocations and martensites in the beta phases. In addition, the interaction between the alpha phase and the beta phase also contributed to the microstructure refinement.

引用

页码：2604 / 2608

页数：5

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