粉末注射成形耐热不锈钢的工艺研究  

Research on the Processing of the Heat-Resistant Stainless Steel by MIM

作　　者：林冰涛[1] 段柏华[1] 曲选辉[1] 

机构地区：[1]北京科技大学,北京100083

出　　处：《稀有金属材料与工程》2007年第A03期204-207,共4页Rare Metal Materials and Engineering

基　　金：国家"863"计划项目(2001AA337050);国家"973"计划项目(G2000067203)资助

摘　　要：以元素混合粉为原料,研究了耐热不锈钢的注射成形工艺。重点讨论了烧结温度、时间及气氛对耐热不锈钢致密度、力学性能及微观组织的影响,获得的最佳工艺为:烧结温度1375℃,时间60 min,真空气氛。在此条件下制备了致密度98.12%、抗拉强度510 MPa、铁素体组织的PIM耐热不锈钢。At the different sintering temperatures, for preserving time and sintering atmosphere, the effects of above three sintering parameters on the properties of heat-resistant alloys by MIM were analysed. The optimal properties can be attained under the condition that the samples are sintered at 1375 ℃, the preserving time are more than 30 min and the sintering atmosphere is vacuum sintering. The optimal properties are relative density 98.12%, tensile strength 510 MPa.

关 键 词：烧末注射成形 耐热不锈钢 烧结工艺 力学性能 

分 类 号：TF124.39[冶金工程—粉末冶金]