| 高碳帘线钢72A连续冷却转变(CCT)的特性 |
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| 引用本文： | 王超,赵刚,蔡国庆,程先舟,欧阳标,董素梅.高碳帘线钢72A连续冷却转变(CCT)的特性[J].特殊钢,2008,29(5):13-15. |
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| 作者姓名： | 王超 赵刚 蔡国庆 程先舟 欧阳标 董素梅 |
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| 作者单位： | 1. 武汉科技大学材料与冶金学院，武汉 430081;
2. 武汉钢铁集团公司，武汉 430083; |
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| 摘 要： | 采用热膨胀法,通过THERMECMASTOR-Z热模拟实验机测试了高碳帘线钢72A(%:0.72C、0.53Mn、0.22Si)的连续冷却转变(CCT)曲线,并分析了开始冷却温度(840～930℃)和冷却速度(0.8～22℃/s)对钢组织的影响。结果表明,相同开始冷却温度条件下,冷却速度越快,相变时间越短;相同冷速条件下,随着开始冷却温度的升高,到达相变开始转变温度的时间和到达转变终了温度的时间会延后;提高开始冷却温度,珠光体的百分含量增加,珠光体片层间距减少,有利于提高线材力学性能。
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| 关 键 词： | 高碳帘线钢 CCT 组织 |
| 收稿时间： | 2008-03-31 |
Features of Continuous Cooling Transformation(CCT) of High Carbon Steel 72A for Tyre Core Wire |
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| Wang Chao,Zhao Gang,Cai Guoqing,Cheng Xianzhou,Ouyang Biao,Dong Sumei.Features of Continuous Cooling Transformation(CCT) of High Carbon Steel 72A for Tyre Core Wire[J].Special Steel,2008,29(5):13-15. |
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| Authors: | Wang Chao Zhao Gang Cai Guoqing Cheng Xianzhou Ouyang Biao Dong Sumei |
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| Affiliation: | 1. School of Materials and Metallurgy,Wuhan University of Science and Technology,Wuhan 430081;
2. Wuhan Iron and Steel Co,Wuhan 430083; |
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| Abstract: | The continuous cooling transformation (CCT) curves of high carbon steel 72A (0.72C,0.53Mn,0.22Si) for tyre core wire has been measured by THERMECMASTOR-Z thermal simulation machine using thermal dilatation method,and the effect of start cooling temperature(840～930℃)and cooling rate(0.8~22 ℃/s)on structure of steel has been analyzed. Results showed that at same start cooling temperature,with increasing cooling rate,the phase transformation period decreased;at same cooling rate,with increasing start cooling temperature,the time reaching the start and end of phase transformation increased; Increasing start cooling temperature was available to increase pearlite percentage content and decrease interlamellar spacing and enhance mechanical properties of wire. |
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| Keywords: | CCT |
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