| 钛铌钒铬在高碳焊缝中的分布 |
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| 引用本文： | 张元彬,任登义. 钛铌钒铬在高碳焊缝中的分布[J]. 中国机械工程, 2003, 14(18): 1614-1616 |
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| 作者姓名： | 张元彬 任登义 |
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| 作者单位： | 1. 山东大学,济南市,250061;山东建筑工程学院,济南市,250061
2. 山东大学材料科学与工程学院 |
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| 基金项目： | 山东省自然科学基金资助项目(Y99F01) |
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| 摘 要： | 利用电子探针(EPMA)、能谱分析(EDS)对高碳多元合金焊缝和急冷熔滴中的碳化物及合金元素分布进行了研究，探讨了Ti、Nb、V及Cr共存时碳化物的形成规律及机理。结果表明，Ti、Nb强烈与C结合形成碳化物，并能由液相中析出；同时，Ti、Nb的存在对V和Cr的碳化物倾向有抑制作用，使V和Cr固溶于基体中，避免了网状碳化物。
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| 关 键 词： | 高碳焊缝 碳化物 钛 铌 钒 铬 |
| 文章编号： | 1004-132X(2003)18-1614-03 |
Distribution of Nb,Ti,V,Cr in High Carbon Weld Metal |
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| Zhang Yuanbin,Ren Dengyi Shandong University,Jinan,China. Distribution of Nb,Ti,V,Cr in High Carbon Weld Metal[J]. China Mechanical Engineering, 2003, 14(18): 1614-1616 |
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| Authors: | Zhang Yuanbin Ren Dengyi Shandong University Jinan China |
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| Abstract: | The distribution of Nb, Ti, V and Cr inhigh carbon weld metals and quenched welding globulewere investigated by means of Electron Probe Microanal-ysis (EPMA) and Energy Dispersive Spectrometry(EDS), then the forming mechanism of carbides in weldsalloyed with Nb, Ti, V and Cr was discussed. It is re-vealed that Ti and Nb preferred to form carbides ratherthan dissolved in matrix and their carbides could precipi-tate from liquid melt. Carbide forming tendency of V andCr was restrained due to the existing of Ti and Nb, thenV and Cr dissolved in the matrix mostly and net carbidesalong grain boundary could be avoided. |
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| Keywords: | high carbon weld carbide (titanium nio bium vanadium chromium) distribution |
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