Effect of Forging on Microstructure, Texture and Compression Behavior of Extruded AZ31B

被引：5

作者：

Toscano, D. ^{[1
]}

Shaha, S. K. ^{[1
]}

Behravesh, B. ^{[1
]}

Jahed, H. ^{[1
]}

Wells, M. ^{[1
]}

Williams, B. ^{[2
]}

McKinley, J. ^{[2
]}

机构：

[1] Univ Waterloo, Dept Mech & Mechatron Engn, 200 Univ Ave W, Waterloo, ON N2L 3G1, Canada

[2] Nat Resources Canada, CanmetMATERIALS, 183 Longwood Rd South, Hamilton, ON L8P 0A1, Canada

来源：

PROCEEDINGS OF THE 3RD PAN AMERICAN MATERIALS CONGRESS | 2017年

基金：

加拿大自然科学与工程研究理事会;

关键词：

Forging; Extrusion; Microstructure; Texture; Compression; MAGNESIUM ALLOY; DEFORMATION; EVOLUTION;

D O I：

10.1007/978-3-319-52132-9_35

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Forging is a common method employed in the fabrication of automotive components. In this study, extruded AZ31B magnesium alloy was semi-close die forged at a temperature of 500 degrees C with a ram rate of 40 mm/s. Microstructural study indicated a bimodal grain structure with weaker texture in the forged material compared to the as-extruded material. Uniaxial compression tests indicated a remarkable improvement of fracture strain from 36 to 61% with a reduction of ultimate compressive strength between 4 and 22% in the forged samples compared to the as-extruded samples. It is attributed to the modification of microstructure and texture decreases twinning and increases the slipping activity resulting the improvement of ductility and reduced strength at room temperature.

引用

页码：347 / 354

页数：8

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