高锰奥氏体钢的再结晶退火工艺研究  

Study on Recrystallization Annealing Process of High Manganese Austenitic Steel

作　　者：李智丽[1] 岳祎楠 靳燕[1] 刘莉[1] Li Zhi-li;Yue Yi-nan;Jin Yan;Liu Li(Technical Center of Inner Mongolia Baotou Steel Union Co.,Ltd.,Baotou 014010,Inner Mongolia Autonomous Region,China)

机构地区：[1]内蒙古包钢钢联股份有限公司技术中心,内蒙古包头014010

出　　处：《包钢科技》2023年第1期41-44,共4页Science & Technology of Baotou Steel

摘　　要：文章以Fe-Mn-Al-C系高锰奥氏体试验钢为研究对象开展再结晶退火工艺研究,对试验钢进行了系列温度热模拟试验、硬度测试及金相分析。研究结果表明,试验钢在退火保温时间为120 s时再结晶温度为750℃,缩短退火保温时间为60 s时,再结晶温度提高至800℃,试验钢在750~900℃范围内保温120 s时晶粒均保持均匀细小,试验钢硬度值变化不大。In the paper,the recrystallization annealing process is studied by taking Fe-Mn-Al-C high manganese austenitic steel as object of study.The thermal simulation tests with series of temperatures,hardness test and metallographic analysis are carried out to the test steel.The study results showed that the recrystallization temperature was 750℃when annealing holding time was 120 s and recrystallization temperature was increased to 800℃when annealing holding time was shortened to 60 s.The grains remain uniform and fine as well as hardness value of test steel is with a little change when the holding time is 120 s at 750~900℃.

关 键 词：奥氏体高锰钢 热处理 氧化层 晶粒度 

分 类 号：TG161[金属学及工艺—热处理]