Development and validation of extrusion limit diagram for AZ31 and AM30 magnesium alloys

被引：3

作者：

Wang, Yingxin ^{[1
]}

Zeng, Xiaoqin ^{[1
]}

Ding, Wenjiang ^{[1
]}

Luo, Alan A. ^{[2
]}

Sachdev, Anil K. ^{[2
]}

机构：

[1] Shanghai Jiao Tong Univ, Natl Engn Res Ctr Light Alloys Net Forming, Huashan Rd 1954, Shanghai 200030, Peoples R China

[2] Gen Motors Res, Dev Ctr, Warren, MI 48090 USA

来源：

2006 BIMW: 2006 BEIJING INTERNATIONAL MATERIALS WEEK, PTS 1-4: MAGNESIUM | 2007年 / 546-549卷

关键词：

AZ31 and AM30 magnesium alloys; extrusion limit diagram; magnesium seamless tubes;

D O I：

10.4028/www.scientific.net/MSF.546-549.327

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Uniaxial hot compression tests were performed at constant temperature (T) and strain rate (epsilon) in the ranges of 200-500 degrees C at an interval of 50 degrees C and 0.001-20 s(-1). The flow stress data were used to develop the extrusion limit diagram for AZ31 and AM30 magnesium tubes. The extrusion limit diagram shows a wide region available for extruding AZ31 and AM30 seamless tubes, and comparison of the two extrusion limit diagrams shows that, the extrudability of AM30 alloy is better than that of AZ31 alloy. Actual extrusion trials validated the predicted temperature rise limit curve corresponding to the occurrence of surface cracking during the extrusion process. Magnesium tubes were successfully extruded according to the safe regions identified by the extrusion limit diagram.

引用

页码：327 / +

页数：2

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