WB36CN1钢连续冷却转变产物分析  

Analysis of continuous cooling transformation products of WB36CN1 steel

作　　者：赵倩 乔志霞[1] 董纪 张亚然 何彪 钱阔 Zhao Qian;Qiao Zhixia;Dong Ji;Zhang Yaran;He Biao;Qian Kuo(School of Mechanical Engineering,Tianjin University of Commerce,Tianjin 300134,China;School of Mechanical Engineering,Tianjin Sino-German University of Applied Sciences,Tianjin 300350,China;Material Science Research Center,Xingtai University,Xingtai Hebei 054001,China;Product Institute of Tianjin Pipe Co.,Ltd.,Tianjin 300301,China)

机构地区：[1]天津商业大学机械工程学院,天津300134 [2]天津中德应用技术大学机械工程学院,天津300350 [3]邢台学院材料科学研究中心,河北邢台054001 [4]天津钢管制造有限公司产品所,天津300301

出　　处：《金属热处理》2023年第7期22-25,共4页Heat Treatment of Metals

基　　金：国家自然科学基金(52004181,52104389);天津市津南区科技计划(20220110)。

摘　　要：利用Gleeble-1500D热模拟试验机将冷却速度控制在50℃/s,探究该冷速下WB36CN1钢的连续冷却转变产物。结果表明,WB36CN1钢由900℃连续冷却至室温后的基体组织包括少量针状铁素体、贝氏体铁素体、马氏体、块状铁素体及分布于马氏体板条界的膜状残留奥氏体,析出相包括棒状渗碳体(θ-碳化物)和与基体呈完全共格关系的球状NbC颗粒。Continuous cooling transformation products of WB36CN1 steel at the cooling rate of 50℃/s were investigated by using Gleeble thermal simulation testing machine.The results show that after continuous cooling from 900℃to room temerature,the matrix of WB36CN1 steel includes a small amount of acicular ferrite,bainite ferrite,martensite,massive ferrite and membranous retained austenite distributed at the martensite lath boundary,and the precipitates include rod-like cementite(θ-carbide)and spherical NbC particles which are completely coherent with the matrix.

关 键 词：WB36CN1钢 连续冷却转变 针状铁素体 贝氏体铁素体 马氏体 

分 类 号：TG156.1[金属学及工艺—热处理]