| 初始组织对低合金调质高强钢热处理后力学性能的影响 |
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| 引用本文： | 卢峰,康健,王超,邓想涛,王昭东,王国栋.初始组织对低合金调质高强钢热处理后力学性能的影响[J].轧钢,2011,28(1):11-14. |
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| 作者姓名： | 卢峰 康健 王超 邓想涛 王昭东 王国栋 |
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| 作者单位： | 河北钢铁集团唐山钢铁公司宽厚板项目经理部 |
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| 基金项目： | 中央高校基本科研业务费资助项目，国家科技支撑计划项目 |
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| 摘 要： | 本文以开发屈服强度为960Mpa级工程机械用调质高强钢为目的，分析了不同的轧制及轧后冷却工艺对实验钢热处理后力学性能的影响。结果表明，不同的轧制及轧后冷却工艺决定了实验钢热处理前的初始显微组织，进而影响其热处理后的力学性能。实验钢经控制轧制并层冷至600℃后空冷，得到的初始组织为粒状贝氏体及少量的马氏体，其中M/A组元更多地呈条状分布在基体上'经调质处理后，实验钢获得了较高的强韧性，Rel各项为1033Mpa，Rm为1053Mpa，Akv（-40℃）指标均达到相关标准要求。
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| 关 键 词： | 高强钢 轧制工艺 控制冷却 显微组织 力学性能 |
Effect of Initial Microstructure on Final Mechanical Properties of Quenched and Tempered High Strength Steel Plates |
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| LU Feng,KANG Jian,WANG Chao,DENG Xiang-tao,WANG Zhao-dong,WANG Guo-dong.Effect of Initial Microstructure on Final Mechanical Properties of Quenched and Tempered High Strength Steel Plates[J].Steel Rolling,2011,28(1):11-14. |
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| Authors: | LU Feng KANG Jian WANG Chao DENG Xiang-tao WANG Zhao-dong WANG Guo-dong |
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| Affiliation: | LU Feng~1,KANG Jian~2,WANG Chao~2,DENG Xiang-tao~2,WANG Zhao-dong~2,WANG Guo-dong~2 (1.Wide Heavy Plate Project Manager Department,Tangshan Iron & Steel Corporation,Hebei Iron & Steel Group,Tangshan 063000,China,2.The State Key Lab of Rolling & Automation,Northeastern University,Shenyang 110004,China) |
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| Abstract: | In order to develop 960MPa in yield strength steel plates for engineering machinery by quenching and tempering technology,the effects of rolling and cooling on microstructure and mechanical properties after heat treatment were investigated.The results showed that initial structure before quenched and tempered processes was determined by various rolling and cooling modes.And then the final mechanical properties after heat treatment were influenced by initial microstructure.When controlled rolling and control... |
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| Keywords: | high strength steel rolling process controlled cooling microstructure mechanical properties |
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