金属注射成形17-4PH高强度不锈钢的研究  

Study on MIM of high strength stainless steel 17-4PH

作　　者：顾虎[1] 毕景维[1] 李峥[1] 马远飞[1] 曹勇家[1] 

机构地区：[1]安泰科技股份有限公司,北京100081

出　　处：《粉末冶金技术》2006年第5期336-339,共4页Powder Metallurgy Technology

基　　金：国家"863"计划资助项目(2001AA337050);北京市科委高新技术产业项目(H020420040290)

摘　　要：使用热脱粘-真空烧结连续工艺制取金属注射成形(MIM)17-4PH不锈钢。观察分析了MIM17-4PH试样烧结态和时效态的显微组织,测试了其力学性能和耐蚀性能。结果表明,使用粉末装载量(体积分数)为65%的注射料,采用热脱粘-真空烧结连续工艺,在1360℃下烧结2h的MIM17-4PH经热处理后达到的综合性能为ρ=7.72g/cm3,σb=1100MPa,σ0.2=1053MPa,δ=14%,αkv=630kJ/m2,HRC=37。MIM 17 -4PH samples were manufactured by the application of thermal debinding- sintering continuous process. The microstructure of sintered and as - heat - treated samples were analyzed, the mechanical properties and corrosion resistance were tested. Results show that MIM 17 - 4PH samples sintered at 1360℃ for 2 hours by the application of thermal debinding- vacuum sintering with 65vol% powder solid loading have excellent properties （after heat - treatment）, ρ = 7.72g/cm^3, σb = 1100MPa, σ0.2 = 1053MPa, δ=14 %, αkv = 630kJ/m^2, HRC = 37.

关 键 词：金属注射成形 17—4PH 脱粘 性能 

分 类 号：TF124.39[冶金工程—粉末冶金]