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6061铝合金ECAP变形后的微观组织和硬度

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摘要 对经过固溶时效处理的6061铝合金在室温下进行了4道次挤压。采用光学显微镜分析了试样ECAP变形前后的显微组织变化,采用洛氏硬度计对6061合金ECAP变形前后进行了硬度测试。结果表明:ECAP工艺不仅能够细化6061铝合金晶粒,而且可提高6061铝合金硬度,经过2道次挤压后,合金洛氏硬度有了较明显的提高,但在随后道次的变形中,合金的洛氏硬度呈缓慢的下降趋势,并且随着变形道次的增加,挤压试样的各部分洛氏硬度值趋于一致,挤压试样各部分变形趋于均匀。
作者 王明华
出处 《山东工业技术》 2015年第7期18-19,21,共3页 Journal of Shandong Industrial Technology
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参考文献7

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