李亨,司媛,罗志勇,周士昂,张真,吴玉程

• 1:合肥工业大学工业与装备技术研究院
• 2:合肥工业大学安徽省有色金属材料与加工工程实验室
• 3:合肥工业大学有色金属与加工技术国家地方联合工程研究中心
• 4:合肥工业大学材料科学与工程学院

摘要(Abstract)：

对6061-T6铝合金板材进行搅拌摩擦加工,研究搅拌摩擦加工压下量和时效热处理对合金的宏观形貌、显微组织、显微硬度和拉伸强度的影响。结果表明:当搅拌头转速为1200 r/min,进给速度为90 mm/min,压下量为1 mm时,搅拌区由细小等轴晶组成,硬度约74 HV,抗拉强度达346 MPa,伸长率为24.7%;经过180℃时效处理后,搅拌区硬度达到107 HV,抗拉强度为397 MPa,伸长率为13.2%。断口形貌分析表明搅拌区拉伸断裂为韧性断裂。

关键词(KeyWords)： 6061-T6铝合金;搅拌摩擦加工;压下量;时效热处理

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学青年科学基金(51605128,51701058);; 安徽省自然科学基金(1508085QE93);; 合肥工业大学博士后科研项目(JZ2016HGBH1055)

作者(Author): 李亨,司媛,罗志勇,周士昂,张真,吴玉程

DOI: 10.13289/j.issn.1009-6264.2017-0527

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