刘鹏茹,郝世明,谢敬佩,吴浩展

• 1:河南科技大学物理工程学院
• 2:有色金属新材料与先进加工技术省部共建协同创新中心
• 3:河南科技大学材料科学与工程学院

摘要(Abstract)：

采用放电等离子体烧结(SPS)技术制备了Mg含量分别为1.6、4和6 mass%的30 vol%SiCp/Al-4.2Cu-xMg复合材料。利用扫描电镜(SEM)、X射线衍射(XRD)、能谱仪(EDS)和万能试验机等研究了复合材料的微观形貌、相组成和力学性能。结果表明，Mg_2Si、Al_2CuMg和Al_2Cu相为SiCp/Al-4.2Cu-xMg复合材料的主要析出相，并存在Al-Fe-Mn(-Si)不溶相；随Mg含量的增加，复合材料的抗压强度提高，塑性减小，T6热处理对Mg含量为1.6和4 mass%时的复合材料强化作用较大，与未经热处理的复合材料相比，抗压强度分别提高了11.2%和12.4%,伸长率分别提高了47.6%和35.7%。

关键词(KeyWords)： 铝基复合材料;放电等离子体烧结;微观组织;析出相;力学性能

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金面上项目(52171138);; 河南省科技攻关项目(222102230088)

作者(Author): 刘鹏茹,郝世明,谢敬佩,吴浩展

DOI: 10.13289/j.issn.1009-6264.2022-0373

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