P91钢中块状铁素体的成因分析  

Analysis of the causes of massive ferrite in P91 steel

作　　者：马东方[1] 许江晓 魏泉泉 赵永峰[1] 耿进锋[1] 

机构地区：[1]国网河南省电力公司电力科学研究院,河南郑州450052 [2]河南恩湃高科集团有限公司,河南郑州450052

出　　处：《锅炉制造》2016年第3期34-35,39,共3页Boiler Manufacturing

摘　　要：从理论上分析了形成块状铁素体的原因,结合集箱实际热处理的情况,认为在P91钢中形成块状铁素体的原因是温度过高(超过A1相变点)造成的。并提出了消除块状铁素体的工艺。the phase Analyzed theoretically the reasons for the formation of massive ferrite through analysis of diagram of P91 steel. Combined with the heat treatment of the header, we can make a conclusion that the formation of massive ferrite in P91 steel is because temperature is too high （ more than the A1 transformation point）. And the process of elimination of massive ferrite was proposed.

关 键 词：P91 块状铁素体 成因 分析 

分 类 号：TK225[动力工程及工程热物理—动力机械及工程]