Microstructure and Mechanical Properties of Twin-roll Casting Strips of High-Al Magnesium Alloy

Wu Xinhai; Zhao Hongyang; Hu Xiaodong

doi:10.15980/j.tzzz.2015.05.023

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Microstructure and Mechanical Properties of Twin-roll Casting Strips of High-Al Magnesium Alloy
Vol. 35, Issue 5, Pages: 533-536(2015)
Published： 2015 ，
DOI： 10.15980/j.tzzz.2015.05.023

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[1]吴鑫海,赵红阳,胡小东.双辊铸轧高铝镁合金薄板的组织与性能[J].特种铸造及有色合金,2015,35(05):533-536.

Wu Xinhai, Zhao Hongyang, Hu Xiaodong. Microstructure and Mechanical Properties of Twin-roll Casting Strips of High-Al Magnesium Alloy. [J]. Special Casting & Nonferrous Alloys 35(5):533-536(2015)
[1]吴鑫海,赵红阳,胡小东.双辊铸轧高铝镁合金薄板的组织与性能[J].特种铸造及有色合金,2015,35(05):533-536. DOI： 10.15980/j.tzzz.2015.05.023.

Wu Xinhai, Zhao Hongyang, Hu Xiaodong. Microstructure and Mechanical Properties of Twin-roll Casting Strips of High-Al Magnesium Alloy. [J]. Special Casting & Nonferrous Alloys 35(5):533-536(2015) DOI： 10.15980/j.tzzz.2015.05.023.

摘要

采用铸轧方式生产了高铝镁合金薄板（Al含量为11.06%）

在400℃和不同保温时间下对高铝镁合金铸轧板进行均匀化退火处理。结果表明

均匀化处理后铸轧板芯部晶粒尺寸比表面小

合金的塑性得到改善

断裂方式发生改变。均匀化处理3h后β-Mg17Al12相基本分解

铸轧态组织基本消除。

Abstract

In order to produce the high-Al magnesium alloy sheets

the twin-roll casting high-Al magnesium alloy strips with 11.06%Al was produced

and then was homogenized treatment at 400℃ for different holding time.The results show that grain size in the center is smaller than that in the surface for twin-roll casting strip after homogenizing treatment.The plasticity of the alloy is improved and the fracture mechanism has changed.The β-Mg17Al12 phase is almost dissolved and the as-cast-rolled structure is eliminated basically after holding for 3h.