文献类型：期刊文献

中文题名：超超临界机组用P92铁素体耐热钢热处理工艺研究

英文题名：Study on Heat Treatment Process of P92 Ferrite Heat-resistant Steel for Ultra Supercritical Units

作者：侯树森[1];郭贵中[1];肖淼鑫[1];付会凯[1]

第一作者：侯树森

机构：[1]新乡学院机电工程学院,河南靳乡453003

第一机构：新乡学院机电工程学院

年份：2020

卷号：49

期号：22

起止页码：138-140

中文期刊名：热加工工艺

外文期刊名：Hot Working Technology

收录：CSTPCD;;Scopus;北大核心:【北大核心2017】；

基金：河南省重点研发与推广专项(科技攻关)项目(202102210268)。

语种：中文

中文关键词：铁素体耐热钢;淬火;回火;显微组织;硬度

外文关键词：ferrite heat-resistant steel;quenching;tempering;microstructure;hardness

摘要：对P92铁素体耐热钢进行不同温度的淬火、回火处理试验,采用显微组织观察、维氏硬度测试研究了不同温度淬火、回火对P92铁素体耐热钢显微组织与硬度的影响。结果表明:淬火态P92试验钢的组织为板条马氏体以及少量残余奥氏体,随着淬火温度升高,马氏体组织逐渐变得粗大,残余奥氏体含量逐渐增加。1050℃淬火+740℃回火的P92试验钢的组织为回火马氏体与回火托氏体,1050℃淬火+800℃回火的P92试验钢组织为回火托氏体与回火索氏体。随着回火温度的升高,试验钢硬度逐渐降低。
P92 ferrite heat-resistant steel was quenched and tempered at different temperatures. The effects of quenching and tempering at different temperatures on the microstructure and hardness of P92 ferrite heat-resistant steel were studied by means of microstructure observation and Vickers hardness test. The results show that the microstructure of P92 quenched test steel is lath martensite and a small amount of retained austenite. With the increases of quenching temperature, the martensite structure gradually becomes coarse and the content of retained austenite gradually increases. The microstructure of P92 test steel quenched at 1050 ℃ and tempered at 740 ℃ is tempered martensite and tempered troostite. The microstructure of P92 test steel quenched at 1050 ℃ and tempered at 800 ℃ is tempered troostite and tempered sorbite. With the increases of tempering temperature, the hardness of the test steel decreases gradually.