学术论文

      电渣重熔对42 CrMo 钢中夹杂物的影响及 CCT 曲线研究

      Electroslag remelting effect on inclusions in 42 CrMo steel and CCT curve study

      摘要:
      采用BX51M型金相显微镜和和Image Pro-Plus软件研究电渣重熔后优化成分的42CrMo钢中非金属夹杂物情况,并在Gleeble3000热模拟机上测定其连续冷却相转变( CCT)曲线.研究结果表明:电渣重熔后明显减少钢中夹杂物的数目,改善钢中夹杂物的尺寸,夹杂物去除率达到71.90%;同时根据热膨胀曲线和金相组织绘制出42CrMo钢的CCT曲线,冷却速度较低时组织为铁素体、珠光体和贝氏体,冷却速度较大时组织为马氏体和少量贝氏体.
      Abstract:
      The effect of electroslag remelting (ESR) on nonmetallic inclusions in an optimal component 42CrMo steel was studied by BX51M optical microscopy and Image Pro-Plus software, and the continuous cooling transformation (CCT) curve was measured on a Gleeble3000 thermal simulation machine. These results show that ESR can reduce the number and size of inclusions in steel samples and the inclusions removal ratio reaches 71. 90%. The CCT curve of 42CrMo steel was plotted according to the thermal expansion curve and microstructure. When the cooling rate is lower, the microstructure is ferrite, pearlite and bainite;but when the cooling rate is higher, there are martensite and a small amount of bainite.
      作者: 徐飞 [1] 李殿凯 [2] 王刘涛 [1] 王海川 [1] 范鼎东 [1] 张庆安 [2] 孙维 [3]
      Author: XU Fei [1] LI Dian-kai [2] WANG Liu-tao [1] WANG Hai-chuan [1] FAN Ding-dong [1] ZHANG Qing-an [2] SUN Wei [3]
      作者单位: 安徽工业大学冶金工程学院,冶金减排与资源综合利用教育部重点实验室,马鞍山243002 安徽工业大学材料科学与工程学院,马鞍山,243002 马鞍山钢铁股份有限公司特钢公司,马鞍山,243001
      刊 名: 工程科学学报 ISTICEIPKU
      年,卷(期): 2016, 38(z1)
      分类号: TF141
      机标分类号: TG2 TG1
      在线出版日期: 2016年7月25日
      基金项目: 安徽省科技攻关重大项目