| 铬微合金化高碳重载车轮钢的连续冷却 |
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| 引用本文： | 宫彦华,沈晓辉,阎军,江波,陈刚,邢军. 铬微合金化高碳重载车轮钢的连续冷却[J]. 钢铁研究学报, 2012, 24(12): 42-47 |
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| 作者姓名： | 宫彦华 沈晓辉 阎军 江波 陈刚 邢军 |
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| 作者单位： | 1. 安徽工业大学材料科学与工程学院,安徽马鞍山,243002
2. 马钢股份公司技术中心,安徽马鞍山,243000 |
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| 基金项目： | 国家高技术研究发展计划项目 |
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| 摘 要： | 采用Gleeble 3500模拟试验机、金相显微镜和扫描电镜研究了两种含铬微合金高碳重载车轮钢的连续冷却组织转变规律，分析了冷速对组织及性能的影响。试验结果表明，铬元素含量高的高碳重载车轮钢的临界冷却速度低，淬透性高，珠光体域和珠光体片层间距小，洛氏硬度高；冷速为5.0、80、10.0℃/s时有少量的贝氏体和针状铁素体出现，且它们的体积分数随铬含量的增加而增加。
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| 关 键 词： | 铬 微合金化 重载车轮钢 连续冷却 |
Continuous Cooling Transformation of Chromic Microalloyed High Carbon Heavy Haul Wheel Steels |
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| GONG Yan-hua,SHEN Xiao-hui,YAN Jun,JIANG Bo,CHEN Gang,XING Jun. Continuous Cooling Transformation of Chromic Microalloyed High Carbon Heavy Haul Wheel Steels[J]. Journal of Iron and Steel Research, 2012, 24(12): 42-47 |
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| Authors: | GONG Yan-hua SHEN Xiao-hui YAN Jun JIANG Bo CHEN Gang XING Jun |
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| Affiliation: | 1. School of Materials Science and Engineering, Anhui University of Technology, Ma��anshan 243002, Anhui,China ;2. Technology Research Center of Masteel Company, Ma��anshan 243000, Anhui, China |
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| Abstract: | The microstructure transformation of two chromic-microalloyed high carbon steels during continuous cooling process were simulated on Gleeble-3500 thermomechanical simulator. The microstructure evolution of the two steels were analyzed and compared. The results showed that the higher chromium steel has lower critical cooling rate, higher hardenability, smaller pearlite colony size, pearlite lamellar spacing and higher Rockwell Hardness. At cooling speed of 5. 0, 8. 0 and 10. 0℃/s, there are a small amount of bainite and acicular ferrite appeared and more in the higher chromium steel. |
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| Keywords: | chromium microalloyed heavy haul wheel steel continuous cooling |
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