大断面Mo-Cu球铁附铸试块中干扰元素的行为  

Behavior of Interfering Elements in Test Lug of Copper-Molybdenum Alloyed Heavy-Section Ductile Iron

作　　者：孙云山[1] 王岩[1] 王桂娟[1] 刘海坤[1] 曹兴言[2] 

机构地区：[1]中国北车集团大连机车车辆有限公司,辽宁大连116022 [2]大连理工大学材料科学与工程学院,辽宁大连116023

出　　处：《铸造》2010年第1期75-80,83,共7页Foundry

摘　　要：参考有关干扰元素偏析的国内外文献,利用电子探针和金相分析的方法对QT550-6曲轴箱体铸件的附铸试块进行了干扰元素的偏析、对组织的影响以及控制干扰元素影响的研究。为生产大断面Mo-Cu球铁铸件提供了有力的指导依据。Referring to the domestic and overseas literatures regarding the segregation of interfering elements and by means of electron probe micro-analyzer （EPMA） and metallographic analysis to the test lug of QT550-6 crank case casting, the segregation of the interfering elements and their influence on structure, as well as the control of the influence were studied. The results provide a useful instruction for production of copper-molybdenum alloyed heavy-section ductile iron.

关 键 词：大断面球铁 干扰元素 偏析 控制 

分 类 号：TG255[金属学及工艺—铸造]