热处理对高碳高铬钢/灰铸铁离心复合铸件组织和性能的影响  

Effect of Heat Treatment on Microstructure and Mechanical Properties of High Carbon High Chrome Steel and Grey Iron Centrifugal Bimetal Castings

作　　者：何奖爱[1] 辛启斌[1] 邱以清[2] 周艳欣 周利[1] 赵培林[1] 王闯[1] 王玉玮[1] 

机构地区：[1]东北大学材料与冶金学院,辽宁沈阳110006 [2]东北大学轧制技术及连轧自动化国家重点实验室,辽宁沈阳110006 [3]锦州经济技术开发区六陆实业股份有限公司,辽宁锦州121001

出　　处：《铸造》2004年第9期709-712,共4页Foundry

基　　金：辽宁省科技厅资助项目(2002221007)

摘　　要：选用20#机油、水为介质,高碳高铬钢/灰铸铁离心复合铸件的最佳热处理工艺为1020℃淬火+500℃回火。此时硬度分别为HSD油=85 1,HSD水=84 1;高碳高铬钢组织为回火马氏体,碳化物及少量奥氏体;灰铸铁组织为回火索氏体。热处理对复合界面宽度没有明显的影响,其宽度经测定为400μm。The microstructure and mechanical properties of high carbide high chromium steel and grey cast iron centrifugal bimetal castings after quenching in 20~# machine oil or water, then tempering were researched.The better heat treatment technology is as follows: quenching at 1020℃ + tempering at 500℃.The average hardness of the samples is 85.1HSD(oil),84.1HSD(water) respectively; the microstructure of high carbon high chromium steel was tempering martensite,carbides and a little remaining austenite; the microstructure of grey cast iron is tempering sorbite. The heat treatment technology has no effect on the width of compound interface, it's 400μm.

关 键 词：复合铸造 热处理 高碳高铬钢 硬度 

分 类 号：TG162[金属学及工艺—热处理]