Al-Si合金中富铁相形态及其影响因素研究进展  

Progress in Research on Iron-rich Phase Morphology in Al-Si Alloy and Its Influencing Factors

作　　者：宋东福[1] 王顺成[1] 周楠[1] 农登[1] 郑开宏[1] 

机构地区：[1]广州有色金属研究院金属加工与成型技术研究所,广州510650

出　　处：《材料工程》2016年第5期120-128,共9页Journal of Materials Engineering

基　　金：广东省科技重大专项(2013A090100004);广东省专业镇中小微企业服务平台(2013B091601001;2013B091601002);佛山市科技创新专项资金项目(2013AH100055);广州市先进金属结构材料重点实验室资助项目(201509010003)

摘　　要：综述了Al-Si合金中富铁相的存在形态、形成条件以及富铁相影响因素的研究进展,重点讨论了Al-Si合金中合金元素、熔炼铸造工艺对富铁相形态与分布影响的最新研究现状。研究现状表明,针状富铁相对Al-Si合金性能危害极大,而汉字状富铁相对合金性能的危害要小得多,合金元素和熔铸工艺对富铁相形态具有重要的影响;因此,研究合金元素与熔铸工艺对富铁相形态的交互作用及其影响规律,从而获得有益的富铁相形态,或减少合金中Fe含量是Al-Si合金中减缓富铁相危害的重要研究趋势。The research progress of iron-rich phase morphology, formation conditions, and its influen- cing factors of iron-rich phase in A1-Si alloy was reviewed, and the latest research status of iron-rich phase morphology and distribution affected by alloy elements, melting ＆ casting process was also di- cussed. The research status shows that the needle iron-rich phase does great harm to the properties of A1-Si alloys, more severe than the Chinese-script iron-rich phase. Besides, the morphology of the iron-rich phase is significantly affected by alloy component and casting process. Therefore, the impor- tant research trend is to study the interaction and effect principle of elements and melting casting process on iron-rich phase morphology, in order to obtain the useful form of iron-rich phase or to miti gate the hazard of A1-Si alloy iron-rich phase.

关 键 词：AL-SI合金 富铁相形态 影响因素 

分 类 号：TG146.2[一般工业技术—材料科学与工程]