马青梅,李菁菁,张国文,刘俊涛,张义

• 1:天津忠旺铝业有限公司

摘要(Abstract)：

利用力学性能测试及显微组织观察研究了退火及冷却方式对5182铝合金板材屈服平台的影响。结果表明:在相同温度退火时,水冷合金板材的屈服强度比空冷合金板材的低;提高退火温度后,无论是水冷还是空冷都可以在一定程度上缩短合金的屈服平台,相比于退火温度影响,冷却方式对屈服平台的影响更大,水冷可以明显缩短甚至消除屈服平台;板材在420℃退火保温1～3 min时晶粒尺寸约16μm,当退火温度升高到480℃时,其晶粒尺寸在3 min内由21. 6μm长到了28. 0μm,其中有部分晶粒发生了异常长大;随着晶粒尺寸的增大,合金的屈服平台也略有减小;通过高温退火和水冷的方式可以消除合金的屈服平台。

关键词(KeyWords)： 5182铝合金板材;退火;屈服平台;屈服强度

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 马青梅,李菁菁,张国文,刘俊涛,张义

DOI: 10.13289/j.issn.1009-6264.2019-0136

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