30CrMnSiA钢带状组织的研究与控制  

Study on Banded Microstructures in 30CrMnSiA Steel and Control of Microstructures

作　　者：白云峰 孙明君 杨成[3] 张磊[4] 薛军 李松柏 BAI Yunfengi;SUN Mingjun;YANG Cheng;ZHANG Lei;XUE Jun;LI Songbai(State Key Laboratory of Metal Material for Marine Equipment and Application,Anshan 114009,Liaoning,China;Ansteel Iron&Steel Research Institutes,Anshan 114009,Liaoning,China;Production Department of Angang Steel Co.,Ltd.,Anshan 114021,Liaoning,China;Ansteel Mining Corp.Dagushan Mine,Anshan 114046,Liaoning,China)

机构地区：[1]海洋装备用金属材料及其应用国家重点实验室,辽宁鞍山114009 [2]鞍钢集团钢铁研究院,辽宁鞍山114009 [3]鞍钢股份有限公司产品制造部,辽宁鞍山114021 [4]鞍钢矿业公司大孤山铁矿,辽宁鞍山114046

出　　处：《鞍钢技术》2022年第4期30-36,共7页Angang Technology

摘　　要：通过分析30CrMnSiA钢带状组织产生原因,并采用不同冶炼和热处理方式对其带状组织进行控制。结果表明,电渣方式冶炼坯料可有效减轻带状组织;高温正火可减轻带状组织但导致钢板硬度过高,正火后高温回火可在带状组织不恶化的前提下有效降低钢板交货硬度。Based on analyzing the causes leading to banded microstructures in the 30CrMnSiA steel,banded microstructures were controlled by different smelting processes and heat treatment methods.The practice results showed that the electroslag smelting method of smelting billets could effectively reduce the banded microstructures,while high temperature normalizing could also alleviate the banded microstructures,but could lead too high hardness of the steel plate.After normalizing,high temperature tempering can effectively lower the hardness of the steel plates in condition of delivery without worsening the banded microstructures.

关 键 词：30CRMNSIA钢 带状组织 电渣熔铸 正火 回火 

分 类 号：TG113.2[金属学及工艺—物理冶金]