吴红艳,杨丽娟,杜林秀,高秀华

• 1:东北大学轧制技术及连轧自动化国家重点实验室

摘要(Abstract)：

利用扫描电镜、透射电镜和拉伸试验机等研究了退火工艺对深冷轧制6061铝合金微观组织、力学性能及断口形貌的影响。结果表明:经深冷轧制后试样的微观组织显著细化,平均晶粒尺寸小于500 nm,可观察到位错聚集和弥散分布的纳米尺寸析出物;在相同退火温度下,深冷轧制试样的强度及伸长率均优于室温轧制;随着退火温度的升高,试样强度表现为先升高后降低,在退火30～60 min时强度出现峰值;试样的拉伸断口属于韧窝-微孔聚集型,随着退火温度的升高,韧窝尺寸逐渐变深。

关键词(KeyWords)： 深冷轧制;退火;6061铝合金;微观组织;力学性能

Abstract:

Keywords:

基金项目(Foundation): 国家高技术研究发展计划(“863”计划)

作者(Author): 吴红艳,杨丽娟,杜林秀,高秀华

DOI: 10.13289/j.issn.1009-6264.2018-0119

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