SAF 2507双相不锈钢真空热处理的研究  

Study on Vacuum Heat Treatment of SAF 2507 Duplex Stainless Steel

作　　者：于广义[1] 陈炜[1] 梁盈[1] 刘业超[1] 王红[1] 高海亮 YU Guang-yi;CHEN Wei;LIANG Ying;LIU Ye-chao;WANG Hong;GAO Hai-liang(Shenyang Blower Works Group Corporation,Shenyang Liaoning 110869,China;Brilliance Automotive Group Holdings Co.,Ltd.,Shenyang Liaoning 110869,China)

机构地区：[1]沈阳鼓风机集团股份有限公司,辽宁沈阳110869 [2]华晨汽车集团控股有限公司,辽宁沈阳110869

出　　处：《热处理技术与装备》2018年第4期24-27,共4页Heat Treatment Technology and Equipment

摘　　要：研究了真空热处理对SAF 2507双相不锈钢组织及力学性能的影响。结果表明,SAF 2507不锈钢在真空热处理过程中炉内自然冷却时会出现脆性相,影响冲击功;当>1.5×10~5Pa气压下的冷却速度时为两相组织,无析出相出现,并且随着冷却速度的进一步增加,平均冲击功继续增加,但是增加缓慢。The effect of vacuum heat treatment on the microstructure and properties of SAF 2507 duplex stainless steel was studied. The results show that the brittle phase can appear when SAF 2507 stainless steel is naturally cooled in the furnace during vacuum heat treatment,and affect the impact energy. The two phase structure without precipitation phase will be obtained as the cooling rate is under 〉1. 5 × 10~5 Pa,and the average impact energy continually but slowly increase with the cooling rate increasing further.

关 键 词：双相不锈钢 SAF 2507 力学性能 显微组织 冲击功 

分 类 号：TG156.95[金属学及工艺—热处理]