正火处理对锻造用钢Q390D组织及性能的影响  

EFFECT OF NORMALIZING TREATMENT ON MICROSTRUCTURE AND PROPERTIES OF Q390D FORGING STEEL

作　　者：康再兴 张群 袁野 Kang Zaixing;Zhang Qun;Yuan Ye(Manufacturing department of BenXi Iron&Steel Co.,Ltd.,LiaoNing BenXi 117000;Product Research Institute,Bengang Steel Plates Co.,Ltd,Liaoning Benxi 117000)

机构地区：[1]本钢板材有限公司制造部,辽宁本溪117000 [2]本钢板材股份有限公司研发院,辽宁本溪117000

出　　处：《冶金信息导刊》2022年第1期10-12,共3页Metallurgical Information Review

摘　　要：通过电子显微镜对锻造用钢Q390D低倍试片的中心、1/2半径和边缘处形貌及-20℃、-40℃低温冲击性能分析,发现钢材经过合理的正火处理工艺处理后显微组织的铁素体晶粒更加均匀细小,低温冲击性能有很大提高,钢材满足高端质量要求。The morphology of center,1/2 radius and edge of Q390D low-temperature specimen for forging steel and the low-temperature impact properties at-20℃and-40℃were analyzed by electron microscope.It was found that the ferrite grains in microstructure of steel after reasonable normalizing treatment were more uniform and fine,the lowtemperature impact properties were greatly improved,and the steel met the high-end quality requirements.

关 键 词：显微组织 铁素体晶粒 正火 低温冲击 

分 类 号：TG1[金属学及工艺—金属学]