一种新型奥氏体-贝氏体复相钢的等温淬火工艺研究  

Technical Study on Isothermal Quenching of A New Type Austenitic-bainite Dual-phase Steel

作　　者：王栋栋 王彬 胡云杰 施家龙 王常志 汪军 徐斌 WANG Dong-dong;WANG Bin;HU Yun-jie;SHI Jia-long;WANG Chang-zhi;WANG Jun;XU Bin(Tongling Non-ferrous Jinshen Wear-resistant Materials Co.,Ltd.,Tongling,Anhui 244000,China)

机构地区：[1]铜陵有色金神耐磨材料有限责任公司,安徽铜陵244000

出　　处：《云南冶金》2022年第5期89-95,共7页Yunnan Metallurgy

基　　金：安徽省科技重大专项(202103a05020002)。

摘　　要：研究了一种新型奥氏体-贝氏体复相钢的等温淬火工艺,对不同工艺参数下奥氏体-贝氏体钢进行组织、力学性能检测,研究结果表明:奥氏体化温度850℃、保温时间90 min,等温淬火温度200℃、等温淬火时间120 min为最佳热处理工艺参数,其微观组织为针状的贝氏体以及均匀分布的残余奥氏体。此时,奥氏体/贝氏体钢的抗拉强度1289 MPa,伸长率6.3%。The isothermal quenching process of a new type austenitic-bainite dual-phase steel was studied,the organization,mechanical property detection of austenitic-bainite steel with different process parameters was carried out,the research results show:the best thermal treatment process parameters were:the austenitizing temperature is 850℃,the heat preservation period is 90 min,the temperature of isothermal quenching is 200℃,the time of isothermal quenching is 120 min,its microscopic structure is needle-like bainite and the evenly distributed remanent austenitic.Under the above mentioned conditions,the tensile strength of austenitic-bainite steel is 1289 MPa,it elongation is 6.3%.

关 键 词：奥氏体-贝氏体复相钢 奥氏体化工艺 等温淬火 组织和性能 

分 类 号：TG142.25[一般工业技术—材料科学与工程]