铸造2017，Vol.66Issue(9)：931-934,4.
铸造奥氏体不锈钢强磁性原因及解决措施
Solution and Causes of Casting Austenitic Stainless Steel Strong Magnetism
摘要
Abstract
The casting austenitic stainless steel with strong magnetism, can not meet the requirements of customers. Microstructure of the casting austenitic stainless steels was observed by OM, SEM and XRD and the reasons of its ferromagnetic properties were studied. From the aspects of solidification theory and Schaeffler model, the countermeasures were put forward. The results show that the casting austenitic stainless steel is composed of austenite, reticular or small lumps of δ ferrite and chromium carbides. The excessive ferrite contents result in strong magnetic of the stainless steel. And its content can be reduced through adjusting the elemental content, namely, reducing the ferrite forming elements such as Cr, Si, Mo, Nb, and increasing austenite forming element such as Ni, C, N, Mn. Theoretically, the casting cost can be controlled by reducing the content of Ni as much as possible.关键词
铸造奥氏体不锈钢/强磁性/Schaeffler模型/δ铁素体Key words
casting austenitic stainless steel/strong magnetism/Schaeffler model/δferrite分类
矿业与冶金引用本文复制引用
贾华,黄琴,孙奇,刘海波,何涛,常占东,范学东,刘海英,邓德伟..铸造奥氏体不锈钢强磁性原因及解决措施[J].铸造,2017,66(9):931-934,4.基金项目
国家"973"项目(2011CB013402) （2011CB013402）
辽宁省自然科学基金(2014028002) （2014028002）
辽宁省科技创新重大专项(201303002) （201303002）
辽宁重大装备制造协同创新中心 （）
沈鼓-大工重大科研发展基金 （）
中央高校基本科研业务费专项资金资助项目. （）
