添加铜和锰对高铁含量铝硅合金显微组织和力学性能的影响  

Effect of Cu and Mn Addition in Al-Si Alloy with High Iron Content on Microstructure and Mechanical Properties

作　　者：李林鑫[1] 文申柳 

机构地区：[1]四川化工职业技术学院,四川泸州646005

出　　处：《有色金属工程》2015年第3期23-26,共4页Nonferrous Metals Engineering

基　　金：四川省教育厅项目(14ZB0432)

摘　　要：为实现高铁含量的铝硅合金的有效回收,对铜和锰复合变质处理后的高铁含量铝硅合金进行扫描电子显微镜观察、X射线能谱仪以及X射线衍射分析,研究铜和锰对高铁含量铝硅合金显微组织和力学性能的影响。结果表明,在铝硅合金中加入铜和锰后,再结合热处理,合金中铁相得到较大改善,合金抗拉强度得到较大提高(193.1 MPa),优于未含铁合金性能(150 MPa)。In order for effectively recycling Al-Si alloy with high iron content, the effect of Cu and Mn addition to the Al-Si alloy with high iron content on the microstructure and mechanical properties of the alloy is investigated by analysis of modified alloy with scanning electron microscopy, X-ray energy spectrum and X-ray diffraction. The results show that the iron phase in AI-Si alloy is improved by addition Cu and Mn to the alloy and , heat treatment, and the tensile strength is increased （193.1 MPa）, it is better than that the alloy without iron content （150 MPa）.

关 键 词：过共晶AL-SI合金 铜 锰 富铁相 显微组织 

分 类 号：TG146.21[一般工业技术—材料科学与工程] TG113.12[金属学及工艺—金属材料]