4J36因瓦合金热轧中厚板热处理工艺研究  

Study on Heat Treatment Process of 4J36 Invar Alloy Hot Rolled Medium Thick Plate

作　　者：武小强 刘国平[1] 李鸿亮 WU Xiao-qiang;LIU Guo-ping;LI Hong-liang(Jiuquan Iron&Steel(Group)Co.Ltd.,Jiayuguan 735100,China)

机构地区：[1]酒泉钢铁(集团)有限责任公司,甘肃嘉峪关735100

出　　处：《甘肃冶金》2023年第2期95-98,共4页Gansu Metallurgy

基　　金：甘肃省科技重大专项“飞机大型复合材料构件成型模具用合金材料研发及应用(项目编号:22JR9KF037)”。

摘　　要：通过金相显微组织分析及力学性能测试,研究了不同热处理工艺对4J36因瓦合金热轧中厚板组织及性能的影响。结果表明热轧态合金板组织为单一的奥氏体,组织均匀性差,750℃退火后,组织和性能变化不大。800~850℃进行退火处理后,合金晶粒组织均匀,随着退火温度升高和保温时间延长,强度下降,塑性提高。在800℃进行退火,保温30~60 min后,其综合力学性能最佳,满足客户使用要求。By means of metallographic microstructure analysis and mechanical properties test,the effects of different heat treatment processes on the microstructure and properties of 4J36 Invar alloy hot rolled medium thick plate were studied.The results show that the microstructure of hot-rolled alloy plate is single austenite with poor homogeneity,and the microstructure and properties have little change after annealing at 750℃.After annealing in the range of 800~850℃,the grain structure of the alloy is uniform,and with the increase of annealing temperature and holding time,the strength decreases and the plasticity increases.After annealing at 800℃and holding for 30~60 min,its comprehensive mechanical properties are the best and meet the requirements of customers.

关 键 词：4J36因瓦合金 热轧中厚板 热处理 显微组织 

分 类 号：TG156.2[金属学及工艺—热处理]