| 铌含量对Cr8WMo2V2SiNb钢组织和性能的影响 |
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| 引用本文： | 刘建华,马党参,张占普,吴立志,陈再枝,迟宏宵.铌含量对Cr8WMo2V2SiNb钢组织和性能的影响[J].特殊钢,2008,29(6):55-57. |
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| 作者姓名： | 刘建华 马党参 张占普 吴立志 陈再枝 迟宏宵 |
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| 作者单位： | 1钢铁研究总院，北京100081;
2河冶科技股份有限公司，石家庄050031;
3昆明理工大学材料与冶金工程学院，昆明650093 |
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| 摘 要： | 研究了0～0.89%Nb含量对淬火(1 000～1 200℃)-回火(200～650℃)CrSWMo2V2SiNb钢组织和力学性能的影响。结果表明,随着Nb含量提高,钢的铸态组织和共晶碳化物形态得以改善,难熔铌的碳化物增多,明显抑制了淬火奥氏体晶粒长大;加铌可相应提高淬火温度,增加钢的二次硬化能力和耐磨性,使钢具有较高综合机械性能。
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| 关 键 词： | 铌 Cr8WMo2V2SiNb钢 组织 二次硬化 力学性能 |
| 收稿时间： | 2008-05-16 |
Influence of Niobium Content on Structure and Mechanical Properties of Steel Cr8WMo2V2SiNb |
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| Liu Jianhua,Ma Dangshen,Zhang Zhanpu,Wu Lizhi,Chen Zaizhi,Chi Hongxiao.Influence of Niobium Content on Structure and Mechanical Properties of Steel Cr8WMo2V2SiNb[J].Special Steel,2008,29(6):55-57. |
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| Authors: | Liu Jianhua Ma Dangshen Zhang Zhanpu Wu Lizhi Chen Zaizhi Chi Hongxiao |
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| Affiliation: | 1 Central Iron and Steel Research Institute,Beijing100081;
2 Heye SpecialScience and Technology Co Ltd,Shijiazhuang 050031;
3 Institute of Materials and Metallurgy Engineering,Kunming University of Science and Technology,Kunming 650093 |
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| Abstract: | Influence of0~0.89% Nb content on structure and mechanical properties of quenched(1000~1200 ℃) - tempered(200~650℃)steel Cr8WMo2V2SiNb has been studied. Results showed that with increasing Nb content the as-cast structure and eutectic carbide morphology improved,the amount of refractory carbides increased remarkably to restrain the growth of austenite grain; and the quenching temperature of steel could appropriately increased by adding Nb to increase secondary hardening ability and wear resistance and get higher integrated mechanical properties of steel. |
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| Keywords: | Material Index Niobium Steel Cr8WMo2V2SiNb Structure Secondary Hardening Mechanical Properties |
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