Characterization of Free Cutting Phase in Free Cutting Stainless Steel Containing High Copper

作     者：GENG Hong-ming WU Xiao-chun WANG Hong-bin MIN Yong-an ZHANG Hong-kui 

作者机构：College of Materials Science and Engineering Shanghai University Shanghai 200072 China Baoshan Iron and Steel Co Ltd Shanghai 200940 China 

出 版 物：《Journal of Iron and Steel Research International》 (J. Iron Steel Res. Int.)

年 卷 期：2009年第16卷第1期

页      面：54-57页

核心收录：

学科分类：090502[农学-动物营养与饲料科学] 08[工学] 0905[农学-畜牧学] 09[农学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：Item Sponsored by Shanghai Leading Academic Discipline Project (T0101) Science and Technology Commission of Shanghai Project (065211028) 

主　　题：machinability copper-rich phase EBSD HREM 

摘      要：The machinability of 4Cr13 steel was improved obviously by adding Cu and S. The effect of copper addition on the machinability of 4Cr13 was similar to that of sulphur addition. By means of SEM, EBSD, and HREM, the distribution and size of the free cutting phase in the steel 4Crl3Cu were studied. The results showed that the free cutting phase was copper-rich phase. The copper-rich phases dispersed in the steel and were determined to have about 10 nm in diameter. The content of copper in the copper-rich phase was over 70%.