| Mn-Si-Cr系无碳化物贝氏体/马氏体复相高强钢的研究进展 |
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| 引用本文： | 高古辉,桂晓露,谭谆礼,白秉哲.Mn-Si-Cr系无碳化物贝氏体/马氏体复相高强钢的研究进展[J].材料导报,2017,31(21):74-81. |
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| 作者姓名： | 高古辉 桂晓露 谭谆礼 白秉哲 |
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| 作者单位： | 北京交通大学机械与电子控制工程学院材料中心 ,北京,100044 |
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| 基金项目： | 国家自然科学基金面上项目(51271013；51301012)；北京市自然科学基金面上项目(2172047) |
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| 摘 要： | 无碳化物贝氏体/马氏体复相高强钢具有比同等强度马氏体钢更优异的韧性和塑性,被广泛应用到轨道交通、机械、建筑等领域。文章概述了低成本Mn-Si-Cr系无碳化物贝氏体/马氏体复相钢近年来在合金化设计、工艺设计、微观组织、强韧化机理、强塑化机理、延迟断裂及疲劳性能等方面取得的研究成果。特别介绍了近年来笔者在BQP工艺处理CFB/M复相钢方面的工作进展,经过BQP处理之后,CFB/M复相钢显示了更优异的强度、塑性、韧性和疲劳性能的匹配。最后简单介绍了Mn-Si-Cr系无碳化物贝氏体/马氏体复相钢在不同领域的应用情况,特别是其在重载高速铁路领域的应用现状和前景。
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| 关 键 词： | 高强钢 无碳化物贝氏体/马氏体复相组织 强韧性 疲劳性能 BQ&P工艺 |
Carbide-free Bainite/Martensite Multiphase High Strength Steels:a Review |
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| GAO Guhui,GUI Xiaolu,TAN Zhunli and BAI Bingzhe.Carbide-free Bainite/Martensite Multiphase High Strength Steels:a Review[J].Materials Review,2017,31(21):74-81. |
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| Authors: | GAO Guhui GUI Xiaolu TAN Zhunli and BAI Bingzhe |
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| Affiliation: | Material Science & Engineering Research Center, School of Mechanical, Electronic and Control Engineering, Beijing Jiaotong University, Beijing 100044,Material Science & Engineering Research Center, School of Mechanical, Electronic and Control Engineering, Beijing Jiaotong University, Beijing 100044,Material Science & Engineering Research Center, School of Mechanical, Electronic and Control Engineering, Beijing Jiaotong University, Beijing 100044 and Material Science & Engineering Research Center, School of Mechanical, Electronic and Control Engineering, Beijing Jiaotong University, Beijing 100044 |
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| Abstract: | The carbide-free bainite/martensite (CFB) multiphase high strength steels have excellent combination of strength and toughness which is superior to the martensite steels. Hence, these CFB/M multiphase steels have been used in the fields of railway, transport, machine, build, etc. The paper reviews recent works on the alloying design, heat treatment, microstructure characterization, mechanism of strengthening, toughening and ductility, delayed fracture properties, fatigue properties, of the low-cost Mn-Si-Cr series CFB/M multiphase steels. In particular, the novel CFB/M multiphase steels treated by BQ&P treatment are introduced. The results show that the BQ&P treated CFB/M multiphase steels exhibits more excellent combination of strength, ductility, toughness and fatigue properties. The paper also presents the applications of the Mn-Si-Cr series CFB/M multiphase steels, especially in the field of the heavy-haul and high-speed railway. |
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| Keywords: | high strength steel carbide-free bainite/martensite multiphase microstructure strength and toughness fatigue property BQ&P process |
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