Development of Pb-Free Austenitic Stainless Steels
Pb-free austenitic stainless steels were investigated by adding sulfur,rare earth (Re) elements and bismuth.The metallurgical properties,machinability and mechanical properties of both steels were examined.The results show that a significant amount of grey,spindle shaped inclusions were discovered in austenitic stainless steels,and they should belong to MnS inclusions containing bismuth element and rare earths oxide.The addition of S,Bi and Re to austenitic stainless steels improved the machinability.The machinability of steel B is better than that of steel A in a way.The mechanical properties of steel B are better than those of steel A,especially total elongation owing to the presence of rare earth elements.From the viewpoint of life cycle assessment,it is proposed that the development of Pb-free austenitic stainless steels containing S,Bi and Re is desirable.
machinability Pb-free austenitic stainless steels rare earth bismuth
Li Zhuang Wu Di Lv Wei
School of Materials Science and Engineering, Shenyang Aerospace University, Shenyang 110136,Liaoning State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang 110004,China School of Graduate, Shenyang Aerospace University, Shenyang 110136, Liaoning, China
国际会议
三亚
英文
628-631
2013-06-22（万方平台首次上网日期，不代表论文的发表时间）