固溶温度对超级双相不锈钢00Cr25Ni7Mo4N组织和性能的影响  

Influence of Solution Temperature on Structure and Properties of Super Duplex Stainless Steel 00Cr25Ni7Mo4N

作　　者：吴忠忠[1] 宋志刚[2] 郑文杰[2] 陈斌[2] 陆建生[1] 

机构地区：[1]昆明理工大学材料与冶金工程学院,昆明650093 [2]钢铁研究总院结构材料研究所,北京100081

出　　处：《特殊钢》2006年第4期11-13,共3页Special Steel

摘　　要：试验和测试了900-1 300℃固溶处理时双相不锈钢00Cr25Ni7Mo4N的相组成、冲击能AKV和硬度(HRC)值。试验结果表明,在900-1 020℃固溶处理时,双相不锈钢中有16．97％-3．22％σ相析出,使钢的冲击能AKV值从1 040-1 250℃处理的224～280 J降至3～44 J。该双相不锈钢的热加工温度应大于1 040℃,其最佳固溶处理温度为1 040～1 100℃。The phase composition, impact energy AKV and hardness HRC value of duplex stainless steel 00Cr25Ni7Mo4N solution treated at 900- 1 300 ℃ have been studied and examined. The results showed that 16.97% -3.22% σ- phase precipitated in duplex stainless steel during solution treatment at 900- 1 020 ℃ led to the impact energy AKV value of steel decreasing to 3 - 44 J from 224 - 280 J while steel treated at 1 040 - 1 250 ℃. The hot work temperature of the duplex stainless steel should be higher than 1 040 ℃ and its optimum solution treatment temperature is 1 040 - 1 100 ℃.

关 键 词：超级双相不锈钢00Cr25Ni7Mo4N 固溶处理 σ-相 冲击能 

分 类 号：TG113[金属学及工艺—物理冶金]