Mg-4Al-0.29Mn-0.97Gd合金的热压缩变形行为

崔晓鹏; 张效宾; 胡景辉; 郭步超

doi:10.15980/j.tzzz.2014.06.033

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Mg-4Al-0.29Mn-0.97Gd合金的热压缩变形行为
Hot Compressive Deformation of Mg-4Al-0.29Mn-0.97Gd Alloy
2014年34卷第6期页码：669-672
纸质出版日期： 2014 ，
DOI： 10.15980/j.tzzz.2014.06.033

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[1]崔晓鹏,张效宾,胡景辉,郭步超.Mg-4Al-0.29Mn-0.97Gd合金的热压缩变形行为[J].特种铸造及有色合金,2014,34(06):669-672.

Cui Xiaopeng, Zhang Xiaobin, Hu Jinghui, et al. Hot Compressive Deformation of Mg-4Al-0.29Mn-0.97Gd Alloy[J]. Special Casting & Nonferrous Alloys, 2014,34(6):669-672.
[1]崔晓鹏,张效宾,胡景辉,郭步超.Mg-4Al-0.29Mn-0.97Gd合金的热压缩变形行为[J].特种铸造及有色合金,2014,34(06):669-672. DOI： 10.15980/j.tzzz.2014.06.033.

Cui Xiaopeng, Zhang Xiaobin, Hu Jinghui, et al. Hot Compressive Deformation of Mg-4Al-0.29Mn-0.97Gd Alloy[J]. Special Casting & Nonferrous Alloys, 2014,34(6):669-672. DOI： 10.15980/j.tzzz.2014.06.033.

摘要

利用Gleeble-1500D热模拟机对Mg-4Al-0.29Mn-0.97Gd镁合金在应变速率为0.1

.0s-1、变形温度为200

00℃的试验条件下进行热压缩变形行为进行了研究。结果表明

该合金热压缩时发生了动态再结晶;试样边缘部分的变形机制主要为孪晶

而试样中部的变形机制主要为再结晶;变形温度和应变速率综合影响镁合金的热压缩变形过程。

Abstract

Hot compression tests of Mg-4Al-0.29Mn-0.97Gd magnesium alloy were performed on Gleeble-1 500hot simulator with strain rates in range of 0.1s-1 to 5s-1 and deformation temperature at200℃

00 ℃.The experimental results reveal that the dynamic recrystallization occurs in the alloy during hot compression.Deformation mechanism at specimen edges is mainly characterized by twin-crystal deformation

and deformation mechanism at center belongs to recrystalization.The main process of hot compressive deformation of magnesium alloy is controlled by deformation temperature and strain rate.