刘赛赛,苗华磊,涂浩,吴长军,王建华,苏旭平

• 1:江苏省表面科学与技术重点实验室常州大学材料科学与工程学院
• 2:株洲冶炼集团股份有限公司
• 3:材料科学与工程国家级实验教学示范中心常州大学

摘要(Abstract)：

采用熔铸方法制备了Zn-11Al-2Cu-0.8Si-0.3Ti-0.05Mg合金,通过电子万能拉伸试验机测定了合金的拉伸蠕变行为,利用扫描电镜和能谱仪对合金显微组织进行分析。结果表明:Zn-11Al-2Cu-0.8Si-0.3Ti-0.05Mg合金在载荷为2827～3958 N和温度为80～120℃的条件下进行拉伸蠕变时,合金的拉伸蠕变本构方程为■,其平均应力指数为4.58,平均表观蠕变激活能为64.06 kJ/mol。Zn-11Al-2Cu-0.8Si-0.3Ti-0.05Mg合金的蠕变机制包括位错攀移机制、自扩散机制和晶界滑动机制。

关键词(KeyWords)： 锌铝合金;拉伸蠕变;蠕变行为;蠕变机制

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(51571039);; 企业横向项目

作者(Author): 刘赛赛,苗华磊,涂浩,吴长军,王建华,苏旭平

DOI: 10.13289/j.issn.1009-6264.2020-0484

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