| 27SiMn钢CCT曲线的测定 |
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| 引用本文： | 王凤香,简方,冯岩.27SiMn钢CCT曲线的测定[J].包钢科技,2007,33(2):26-29. |
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| 作者姓名： | 王凤香 简方 冯岩 |
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| 作者单位： | 内蒙古包钢钢联股份有限公司无缝钢管厂,内蒙古,包头,014010;内蒙古包钢钢联股份有限公司无缝钢管厂,内蒙古,包头,014010;内蒙古包钢钢联股份有限公司无缝钢管厂,内蒙古,包头,014010 |
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| 摘 要： | 在Gleeble1500D热模拟机上利用膨胀法测定了27SiMn钢在不同冷却速度下连续冷却转变的膨胀曲线,获得了该钢的连续冷却转变曲线(CCT曲线),利用蔡司显微镜观察了不同冷速下试样的金相组织,借助莱卡硬度计测定了各试样的显微硬度值.随着冷却速度增加,硬度值越来越大.通过对CCT曲线的分析为生产工艺的制定提供了一定的实验依据.
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| 关 键 词： | 27SiMn钢 连续冷却转变曲线 冷却速度 组织 硬度 |
| 文章编号： | 1009-5438（2007）02-0026-04 |
| 修稿时间： | 2006-06-26 |
Determination of CCT Curves of 27SiMn Steel |
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| WANG Feng-xiang,JIAN fang,FENG Yan.Determination of CCT Curves of 27SiMn Steel[J].Science & Technology of Baotou Steel(Group) Corporation,2007,33(2):26-29. |
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| Authors: | WANG Feng-xiang JIAN fang FENG Yan |
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| Affiliation: | Seamless Pipe Plant of Steel Union Co. Ltd. of Baotou Steel (Group |
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| Abstract: | Using the Gleeblel500D thermal simulation machine, the CCT curve of 27SiMn steel is obtained by measuring the different expanding curves of the continuous cooling transformation in the different cooling rate. The metallographic microstructures of different cooling velocity are observed by ZEISS microscope, and the microhardness of testing sample is measured by the LaiKa microhardness tester. As the cooling rate increases, the hardness increases. The CCT curve provides the experimental reference to make the production craft. |
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| Keywords: | 27SiMn steel continuous cooling transformation curve cooling rate microstructure hardness |
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