刘光明,杨丽峡,黄庆学,马立峰,韩廷状

• 1:太原科技大学材料科学与工程学院
• 2:太原科技大学重型机械教育部工程研究中心

摘要(Abstract)：

将AZ31镁合铸轧板在350℃热轧,随后在不同的条件下对其进行热处理,观察并研究了不同热处理工艺下AZ31镁合金热轧板的微观组织和力学性能的演变规律。结果表明:AZ31镁合金轧制变形后的微观组织中,部分原始晶粒中有大量互相平行的孪晶,在原始晶界处出现了细小的动态再结晶晶粒;镁合金轧制板材在400℃退火1 h后,平均晶粒尺寸细化至6.3μm,板材的屈服强度与抗拉强度略微下降,伸长率明显提高,达到27.3%,表明合理的退火工艺可以有效地提高镁合金板材的室温塑性。

关键词(KeyWords)： AZ31镁合金铸轧板;热轧;热处理;微观组织;力学性能

Abstract:

Keywords:

基金项目(Foundation): 国家重点基础研究发展计划项目(2012CB722801);; 国家自然科学基金(51404159,51504157);; 山西省重点研发计划重点项目(201603D111004);; 山西省重点学科建设项目;; 山西省国际科技合作项目(2015081011)

作者(Author): 刘光明,杨丽峡,黄庆学,马立峰,韩廷状

DOI: 10.13289/j.issn.1009-6264.2019-0015

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