| 钒对YQ450NQR1高强度耐候钢组织与性能的影响 |
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| 引用本文： | 刘庆春,钟华,郑之旺.钒对YQ450NQR1高强度耐候钢组织与性能的影响[J].钢铁钒钛,2008,29(4). |
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| 作者姓名： | 刘庆春 钟华 郑之旺 |
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| 作者单位： | 1. 昆明理工大学材料与冶金学院,云南,昆明,650093;攀枝花钢铁研究院,四川,攀枝花,617000
2. 攀枝花钢铁研究院,四川,攀枝花,617000 |
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| 摘 要： | 以含钒YQ450NQR1高强度耐候钢为研究对象,通过光学显微镜、高分辨率电镜、相分析等方法,研究了不同钒含量试验钢的金相组织、钒析出行为,探讨了钒析出量与力学性能之间的关系.结果表明,试验钢热轧态组织为块状铁素体 珠光体;钒在钢中明显析出,析出相以VN或V(C,N)为主; 钒在YQ450NQR1钢中起明显的强化作用,并且钒的作用与氮密切相关.只要获得了较高的VN析出比例,试验钢的钒含量可以得到降低.
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| 关 键 词： | 高强度耐候钢 钒 析出相 氮 组织 力学性能 |
Effect of Vanadium on the Microstructure and Properties of YQ450NQR1 Higher Strength Weathering Steels |
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| Liu Qingchun,Zhong Hua,Zheng Zhiwang.Effect of Vanadium on the Microstructure and Properties of YQ450NQR1 Higher Strength Weathering Steels[J].Iron Steel Vanadium Titanium,2008,29(4). |
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| Authors: | Liu Qingchun Zhong Hua Zheng Zhiwang |
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| Affiliation: | Liu Qingchun~(1,2) Zhong Hua~2 Zheng Zhiwang~2 1.School of Materials , Metallurgy Engineering,Kunming University of Science & Technology,Kunming 650093,Yunnan,China 2.Panzhihua Iron & Steel Research Institute,Panzhihua 617000,Sichuan,China |
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| Abstract: | The target-oriented researches on the vanadium-containing YQ450NQR1 high strength weathering steels were conducted in this paper.Methods such as optical microscope,high resolution electron microscope, phase analyzing,and so on were used to investigate the effect of vanadium on microstructure and the behavior of vanadium precipitates on the hot-roiling samples.The relationship between the amount of vanadium precip- itates and properties was analyzed.It has been found that the microstructures of test steels a... |
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| Keywords: | high strength weathering steel vanadium precipitates nitrogen microstructure mechanical properties |
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