RE和Mn对Al-Si合金中铁相的影响  

Influence of RE and Mn Additions on Fe-containing Phase in Al-Si Alloys

作　　者：刘扭参[1] 李俊青[1] 杨明生 

机构地区：[1]河南工程学院数理科学系,河南郑州451191 [2]登封电厂集团铝合金有限公司,河南登封452477

出　　处：《铸造技术》2011年第11期1532-1534,共3页Foundry Technology

基　　金：河南省教育厅自然科学研究项目(2011B430004)

摘　　要：研究了Mn和RE对高铁含量ZL102合金中铁相的影响。结果表明,Mn可抑制长针状的β-Fe相,使部分针状铁相转变成骨骼状或汉字状的α-Fe相;RE元素并不能使长针状的β-Fe相转变成α-Fe相,但它可以使长针状β-Fe相断裂变小;Mn和RE的复合使用可以有效改善铁相形貌,使针状铁相变为小块的骨骼状或汉字状。The effect of RE and Mn on Fe-containing phase in high-Fe ZL102 alloys was investigated. The results show that the addition of Mn element can restrain the long needle-like β-Fe phase and makes a part of that transforms into skeleton or Chinese character likeα-Fe phase. Adding RE elements are unable to change the morphologies of Fe-containing phase, but can make the long needle-like β-Fe phase be ruptured. The complex addition of RE and Mn can not only refine the morphologies of Fe-containing phase in alloys, but also transforms needle-like phase into skeleton or Chinese character like phase.

关 键 词：铝硅合金 铁相 锰 稀土 

分 类 号：TG146.21[一般工业技术—材料科学与工程]