| Mo和Ni对低合金耐磨钢连续冷却转变的影响 |
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| 引用本文： | 曹艺,王昭东,吴迪,王国栋,张逖.Mo和Ni对低合金耐磨钢连续冷却转变的影响[J].材料热处理学报,2011,32(5). |
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| 作者姓名： | 曹艺 王昭东 吴迪 王国栋 张逖 |
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| 作者单位： | 1. 东北大学轧制技术及连轧自动化国家重点实验室,辽宁,沈阳,110004
2. 南京钢铁股份有限公司,江苏,南京,210035 |
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| 基金项目： | 国家重点研究发展计划(973)项目(2010CB630800); 国家科技支撑计划项目(2006BAE03A08) |
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| 摘 要： | 用热力模拟实验机测定了不含Mo和Ni、含Mo不含Ni、含Mo和Ni 3种成分低合金耐磨钢的连续冷却转变(CCT)曲线,用光学显微镜、透射电镜观察了连续冷却过程中的显微组织,研究了连续冷却条件下的组织演变规律,分析了Mo和Ni元素对显微组织和硬度的影响。结果表明:随冷速的增加,试验钢的转变组织主要有铁素体、粒状贝氏体、板条贝氏体以及板条马氏体。Mo、Ni的添加使耐磨钢在低冷却速率下抑制了铁素体相变,促进了贝氏体相变;在高冷却速率下促进了马氏体相变,提高了临界冷却速率。Ni的添加对显微硬度的增加作用更明显。
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| 关 键 词： | 低合金耐磨钢 连续冷却转变 Mo Ni 显微组织 硬度 |
Effect of Mo and Ni on continuous cooling transformation of low alloy wear-resistant steel |
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| CAO Yi,WANG Zhao-dong,WU Di,WANG Guo-dong,ZHANG Ti.Effect of Mo and Ni on continuous cooling transformation of low alloy wear-resistant steel[J].Transactions of Materials and Heat Treatment,2011,32(5). |
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| Authors: | CAO Yi WANG Zhao-dong WU Di WANG Guo-dong ZHANG Ti |
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| Affiliation: | CAO Yi1,WANG Zhao-dong1,WU Di1,WANG Guo-dong1,ZHANG Ti2(1.State Key Laboratory of Rolling and Automation,Northeastern University,Shenyang 110004,China,2.Nanjing Iron and Steel Co Ltd,Nanjing 210035,China) |
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| Abstract: | Continuous cooling transformation diagrams were determined for three low alloy wear-resistant steels with different composition(without Mo/Ni,with Mo,with Mo and Ni) by a thermal simulator.Continuous cooled microstructure was observed by means of optical microscope and transmission electron microscopy.Microstructure evolution behavior of the wear-resistant steels was investigated and the influences of addition of Mo/Ni on microstructure and hardness of the steels were analyzed.The results show that microstr... |
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| Keywords: | low alloy wear-resistant steel continuous cooling transformation Mo Ni microstructure hardness |
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