Investigation on Three-Dimensional Microstructures and Tensile Properties of Pure Iron During Equal-Channel Angular Pressing

被引：1

作者：

Yang, Gang ^{[1
]}

Yang, Muxin ^{[1
]}

Liu, Zhengdong ^{[1
]}

Wang, Chang ^{[1
]}

Huang, Chongxiang ^{[1
]}

机构：

[1] Cent Iron & Steel Res Inst, Beijing 100081, Peoples R China

来源：

NANOMATERIALS BY SEVERE PLASTIC DEFORMATION: NANOSPD5, PTS 1 AND 2 | 2011年 / 667-669卷

关键词：

iron; ECAP; UFG; microstructure; mechanical properties; GRAIN-REFINEMENT; MECHANICAL-PROPERTIES; ECAP; AL; DEFORMATION; EVOLUTION; ALLOYS; STEEL;

D O I：

10.4028/www.scientific.net/MSF.667-669.791

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Commercial pure iron billets having diameter of 60 mm and length of 180 mm were subjected to equal channel angular pressing (ECAP) at 350 degrees C for 1-4 passes via route B-C. Microstructural evolutions on three planes (X, Y, Z planes) were characterized by optical microscopy and transmission electron microscopy (TEM). It was found that after four passes an ultrafine microstructure could be formed on the X plane, but a band structure remained on the Z plane. Accordingly, the mechanical properties exhibited apparent dependence on the orientations. The strength in the X and Y directions was higher than that in the Z direction. The microstructural refinement and mechanical properties were discussed in terms of experimental results.

引用

页码：791 / 796

页数：6

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