| 钒含量对PD3钢碳化钒析出的影响 |
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| 引用本文： | 刘天模,梅东生,等.钒含量对PD3钢碳化钒析出的影响[J].重庆大学学报(自然科学版),2001,24(6):78-81. |
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| 作者姓名： | 刘天模 梅东生 |
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| 作者单位： | [1]重庆大学材料科学与工程学院，重庆400044 [2]攀枝花钢铁公司，攀枝花617000 |
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| 摘 要： | 为了弄清钒在珠光体组织转变中的作用和沉淀析出的规律，通过电化学萃取分析结合透射电子显微镜观察研究了钒含量对PD3钢中碳化钒析出行为的影响。研究结果表明：PD3钢的铁素体和渗碳体中固溶钒的饱和溶解度分别为0．09％和0．23％左右；当钢中钒含量低于0．21％时，钒主要以固溶形式存在，只有极少量的碳化钒质点无序析出；当钢中钒含量增加，超过饱和溶解度后，多余的钒则主要以碳化钒的形式析出；当钢中钒含量高于0．21％，达到0．33％时，碳化钒将以无序状态和“相关沉淀”两种方式大量析出。
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| 关 键 词： | 碳化钒 相间沉淀 低碳钢 钒 PD3钢 沉淀析出 铁素体 |
| 文章编号： | 1000-582X(2001)06-0078-04 |
| 修稿时间： | 2001年6月12日 |
Effect of Vanadium Content on VC Precipitation in PD3 Steel |
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| LIU Tian mo,ZHOU Shou ze,ZUO Ru lin,MEI Dong sheng,DENG Jian hui.Effect of Vanadium Content on VC Precipitation in PD3 Steel[J].Journal of Chongqing University(Natural Science Edition),2001,24(6):78-81. |
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| Authors: | LIU Tian mo ZHOU Shou ze ZUO Ru lin MEI Dong sheng DENG Jian hui |
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| Institution: | LIU Tian mo 1,ZHOU Shou ze 1,ZUO Ru lin 1,MEI Dong sheng 2,DENG Jian hui 2 |
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| Abstract: | In order to identify the affect of vanadium in pearlite transformation and the regularity of the precipitation, the effect of vanadium content on VC precipitation in PD3 steel has been studied by electrochemical extraction and TEM. The results show that the solid solubility limit of vanadium in the ferrite and Fe 3C is 0.09% and 0.23% respectively, that vanadium exist mainly as solid solution and a few VC particles are precipitated in disordered way in case of the vanadium content being below 0.21%, that VC particles are precipitated in excess of saturated solubility, and that a lot of VC particles are precipitated in disordered and "interphase precipitated" way in case of the vanadium content being above 0.21% and arrive at 0.33%. |
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| Keywords: | vanadium carbide interphase precipitation separate out |
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