| 电渣重熔对42 CrMo 钢中夹杂物的影响及 CCT 曲线研究 |
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| 引用本文： | 徐飞,李殿凯,王刘涛,王海川,范鼎东,张庆安,孙维.电渣重熔对42 CrMo 钢中夹杂物的影响及 CCT 曲线研究[J].北京科技大学学报,2016(Z1):201-205. |
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| 作者姓名： | 徐飞 李殿凯 王刘涛 王海川 范鼎东 张庆安 孙维 |
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| 作者单位： | 1. 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;2. 安徽工业大学材料科学与工程学院,马鞍山,243002;3. 马鞍山钢铁股份有限公司特钢公司,马鞍山,243001 |
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| 基金项目： | 安徽省科技攻关重大项目(1301021008) |
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| 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.
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| 关 键 词： | 42CrMo 夹杂物去除 电渣重熔 CCT曲线 |
Electroslag remelting effect on inclusions in 42 CrMo steel and CCT curve study |
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| XU Fei,LI Dian-kai,WANG Liu-tao,WANG Hai-chuan,FAN Ding-dong,ZHANG Qing-an,SUN Wei.Electroslag remelting effect on inclusions in 42 CrMo steel and CCT curve study[J].Journal of University of Science and Technology Beijing,2016(Z1):201-205. |
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| Authors: | XU Fei LI Dian-kai WANG Liu-tao WANG Hai-chuan FAN Ding-dong ZHANG Qing-an SUN Wei |
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| 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. |
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| Keywords: | electroslag remelting inclusions removal cooling phase transformation |
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