| 终轧温度及轧后冷却速度对Q460C钢组织和相变的影响 |
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| 引用本文： | 黄山,高雅,贠冰,孙建林,段双霞. 终轧温度及轧后冷却速度对Q460C钢组织和相变的影响[J]. 武汉科技大学学报(自然科学版), 2010, 33(2) |
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| 作者姓名： | 黄山 高雅 贠冰 孙建林 段双霞 |
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| 作者单位： | 1. 北京科技大学材料科学与工程学院,北京,100083
2. 太钢集团临汾钢铁有限公司,山西,临汾,041000 |
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| 摘 要： | 在Gleeble-1500热应力/应变模拟实验机上热压缩模拟Q460C含铌钢的轧制过程,并控制终轧温度和轧后冷却速度.通过观察金相组织和膨胀曲线研究控轧控冷对Q460C钢组织和相变的影响,分析了轧制过程中可能诱导其裂纹产生的原因.结果表明,Q460C钢组织分布不均、控轧控冷工艺不合理均可能造成其裂纹的产生,提高终轧温度可促进相变提前发生,而在较高终轧温度下,轧后冷却速度对Q460C钢组织变化的影响很小.
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| 关 键 词： | 钢组织 控轧控冷 |
Influences of the finishing temperature and cooling rate on the organization and phase transformation of Q460C |
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| Huang Shan,Gao Ya,Yun Bing,Sun Jianlin,Duan Shuangxia. Influences of the finishing temperature and cooling rate on the organization and phase transformation of Q460C[J]. Journal of Wuhan University of Science and Technology(Natural Science Edition), 2010, 33(2) |
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| Authors: | Huang Shan Gao Ya Yun Bing Sun Jianlin Duan Shuangxia |
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| Affiliation: | Huang Shan1,Gao Ya1,Yun Bing1,Sun Jianlin1,Duan Shuangxia2(1.School of Materials Science , Engineering,University of Science , Technology Beijing,Beijing 100083,China,2.Linfen Iron , Steel Co.,Ltd.,Taiyuan Iron , Steel Group Co.,Linfen 041000,China) |
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| Abstract: | The rolling process of Nb microalloyed steel Q460C was simulated by Gleeble-1500 at different finishing temperatures and post-rolling cooling rates,and the effects of controlled rolling and cooling schedule on the steel microstructure and phase change were analyzed by using optical microscopy technique and expansion curve.The possible causes of the cracks that appear on the steel during the rolling process are discussed.The results show that the uneven distribution in organization,unreasonable controlled ro... |
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| Keywords: | Q460C |
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