Twins and Texture of Super-Alloy IN690 Tube by Extrusion

被引：0

作者：

Wang Zhongtang ^{[1
]}

Zhang Xiaoyu ^{[1
]}

Deng Yonggang ^{[1
]}

Cheng Ming ^{[2
]}

机构：

[1] Shenyang Ligong Univ, Shenyang 110159, Peoples R China

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

来源：

RARE METAL MATERIALS AND ENGINEERING | 2014年 / 43卷 / 09期

关键词：

super-alloy; IN690; extrusion; tube; twinning; texture; INTERGRANULAR CORROSION; MICROSTRUCTURE;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The texture of the extrusion tube of super-alloy IN690 was analyzed by electron backscatter diffraction (EBSD) test. The results indicate that the orientation error between twinning and maternal grains is < 111 >/60 degrees for the extrusion tube of super-alloy IN690, and it results in much 60 degrees large grain boundary after extrusion deformation. The grain boundary of IN690 is coherent twin boundary (Sigma 3) coincidence site lattice. Comparing the Sigma 3 volume and texture in different extrusion parameters, the tube of super-alloy IN690 has excellent corrosion resistance and plasticity when the extrusion temperature is 1200 degrees C and extrusion ratio is 5.

引用

页码：2252 / 2256

页数：5

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