| 形变对共析钢连续冷却过程中珠光体相变的影响 |
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| 引用本文： | 蔡珍,毛新平,鲍思前,赵刚,胡晓. 形变对共析钢连续冷却过程中珠光体相变的影响[J]. 钢铁研究学报, 2020, 32(10): 931-936. DOI: DOI: 10.13228/j.boyuan.issn1001-0963.20190221 |
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| 作者姓名： | 蔡珍 毛新平 鲍思前 赵刚 胡晓 |
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| 作者单位： | 1.武汉科技大学省部共建耐火材料与冶金国家重点实验室， 湖北 武汉 430081；2.宝钢股份中央研究院武汉分院， 湖北 武汉 430080；3.武汉科技大学钢铁冶金及资源利用省部共建教育部重点实验室， 湖北 武汉 430081 |
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| 摘 要： | 摘要：为掌握形变对共析钢连续冷却过程中珠光体相变的影响，研究了共析钢在720～920℃温度范围内进行形变后，在连续冷却过程中奥氏体向珠光体相变的规律，建立了相变时的过冷度和珠光体片层间距的相互关系，并预测了试验钢的力学性能。结果表明：形变储存能促进共析钢在50℃/s高冷速下发生珠光体相变，形成片层间距为129～187 nm的超细片层珠光体，抗拉强度达到近1000MPa，且随着形变温度提高，形变储存能减小，珠光体相变温度降低，珠光体片层间距减小，屈服强度和抗拉强度提高。
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| 关 键 词： | 关键词：形变 珠光体相变 形变储存能 片层间距 力学性能 |
Effect of deformation on pearlite transformation during continuous cooling process in eutectoid steel |
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| CAI Zhen,MAO Xin-ping,BAO Si-qian,ZHAO Gang,HU Xiao. Effect of deformation on pearlite transformation during continuous cooling process in eutectoid steel[J]. Journal of Iron and Steel Research, 2020, 32(10): 931-936. DOI: DOI: 10.13228/j.boyuan.issn1001-0963.20190221 |
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| Authors: | CAI Zhen MAO Xin-ping BAO Si-qian ZHAO Gang HU Xiao |
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| Affiliation: | 1.The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, Hubei, China; 2.Wuhan Branch of Baosteel Central Research Institute, Wuhan 430080, Hubei, China; 3.Key Laboratory for Ferrous Metallurgy and Resources Utilization of Ministry of Education, Wuhan University of Science and Technology, Wuhan 430081, Hubei, China |
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| Abstract: | Austenite to pearlite transformation in the continuous cooling process after deformation between 720℃ and 920℃ was studied in eutectoid steel, the relationship model between undercooling and interlamellar spacing was presented, and the mechanical properties were evaluated. The results show that transformation to pearlite is promoted by the role of deformation energy even under a high cooling rate of 50℃/s, fine pearlite with the interlamellar spacing of 129-187 nm is obtained, and the tensile strength is evaluated to be nearly 1000MPa. With the increase in deformation temperature, the deformation energy decreases, and interlamellar spacing decreases as the transformation temperature decreases, which leads to the increase in yield strength and tensile strength. |
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| Keywords: | Key words： deformation pearlite transformation deformation energy interlamellar spacing mechanical property |
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