| 过共析钢轨钢的连续冷却转变行为 |
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| 引用本文： | 王东梅,赵磊城,陈林,董瑞. 过共析钢轨钢的连续冷却转变行为[J]. 金属热处理, 2021, 46(2): 45-49. DOI: 10.13251/j.issn.0254-6051.2021.02.008 |
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| 作者姓名： | 王东梅 赵磊城 陈林 董瑞 |
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| 作者单位： | 内蒙古科技大学 材料与冶金学院,内蒙古 包头 014010;内蒙古第一机械集团股份有限公司 第三分公司,内蒙古 包头 014030 |
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| 基金项目： | 内蒙古自治区科技重大专项;内蒙古科技大学创新基金;内蒙古自治区自然科学基金 |
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| 摘 要： | 以碳含量(质量分数)大于0.9％的过共析钢轨钢为研究对象,采用L78淬火膨胀仪研究了其在连续冷却过程中的微观组织及力学性能演变规律,并建立了过共析钢轨钢的连续冷却曲线,为制定过共析钢轨钢的合理轧后冷却工艺提供了理论依据.结果表明:当冷却速度在5～10℃/s内时,能够有效减少渗碳体与马氏体等异常组织的产生以及细化珠光体的...
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| 关 键 词： | 过共析钢轨钢 连续冷却转变 珠光体 细化 |
| 收稿时间： | 2020-07-24 |
Continuous cooling transformation behavior of hypereutectoid rail steel |
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| Wang Dongmei,Zhao Leicheng,Chen Lin,Dong Rui. Continuous cooling transformation behavior of hypereutectoid rail steel[J]. Heat Treatment of Metals, 2021, 46(2): 45-49. DOI: 10.13251/j.issn.0254-6051.2021.02.008 |
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| Authors: | Wang Dongmei Zhao Leicheng Chen Lin Dong Rui |
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| Affiliation: | 1. School of Materials and Metallurgy, Inner Mongolia University of Science & Technology, Baotou Inner Mongolia 014010, China; 2. The Third Branch of Inner Mongolia First Machinery Group Co., Ltd., Baotou Inner Mongolia 014030, China |
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| Abstract: | Microstructure evolution and mechanical properties of the hypereutectoid rail steel with carbon content(mass fraction)above0.9%were investigated by means of L78 quenching dilatometer during the continuous cooling process.The continuous cooling transformation curves were determined to providing a theoretical basis for the proper post-rolling controlled cooling process.The results show that at the cooling rate from 5℃/s to 10℃/s,the cementite precipitation and martensite formation are effectively prohibited,the interlamellar spacing of pearlite is refined,and the mechanical properties of the hypereutectoid rail steel are improved. |
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| Keywords: | hypereutectoid rail steel continuous cooling transformation pearlite refinement |
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