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  4. 镁合金超塑性的变形机理﹑研究现状及发展趋势

中国有色金属学报, 2008, 18(2): 193-202.

镁合金超塑性的变形机理﹑研究现状及发展趋势

陈振华 1, , 刘俊伟 2, , 陈鼎 3, , 严红革 4,

1.湖南大学,材料科学与工程学院,长沙,410082

2.湖南大学,材料科学与工程学院,长沙,410082

3.湖南大学,材料科学与工程学院,长沙,410082

4.湖南大学,材料科学与工程学院,长沙,410082

关键词： 镁合金 , 超塑性 , 高应变速率超塑性 , 超塑性成形

Deformation mechanisms, current status and development direction of superplastic magnesium alloys

综述不同成形条件下的镁合金激活能及本构方程,对粗晶和细晶镁合金的超塑性变形机理予以详细的介绍.并对常见的几种镁合金超塑性加工方式进行探讨,并概述超塑性镁合金的发展趋势,认为未来超塑性镁合金将取得快速发展.获得高应变速率与低温超塑性镁合金并实现镁合金低成本化、安全化、环保化是目前研究的热点.

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