| 钴基合金粉末等离子弧堆焊的显微结构 |
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| 引用本文： | 侯清宇,高甲生.钴基合金粉末等离子弧堆焊的显微结构[J].焊接,2003(9):20-24. |
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| 作者姓名： | 侯清宇 高甲生 |
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| 作者单位： | 安徽工业大学冶金与材料学院,马鞍山市,243002 |
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| 基金项目： | 安徽省科技厅中韩合作项目 (0 0 2 50 80 7)，中美国际合作项目 (0 1 0 880 1 3) |
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| 摘 要： | 对钴基多元合金粉末等离子弧堆焊层的金相组织、X射线衍射、扫描电镜(SEM)和透射电镜(TEM)的研究结果表明，合金层基体为具有(200)晶面择优取向的Co基固溶体，Co基固溶体中存在许多堆积层错；与固溶体组成共晶体的碳化物主要为具有六方点阵并含有层片状孪晶的(Cr，Fe)7C3。
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| 关 键 词： | 等离子弧焊 堆焊 钴基合金粉末 显微结构 择优取向 金相组织 X射线衍射 扫描电镜 透射电镜 |
| 修稿时间： | 2003年5月12日 |
MICROSTRUCTURE OF THE COBALT- BASE ALLOY POWDER PLASMA ARC SURFACING |
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| Anhui University of Technology Hou Qingyu,Gao Jiasheng.MICROSTRUCTURE OF THE COBALT- BASE ALLOY POWDER PLASMA ARC SURFACING[J].Welding & Joining,2003(9):20-24. |
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| Authors: | Anhui University of Technology Hou Qingyu Gao Jiasheng |
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| Abstract: | The layer of cobalt-base alloy plasma arc powder surfacing has been investigated by using microstructure, X ray diffraction, SEM and TEM. The results showed that the alloy layer was composed of cobalt-base solid solution with the preferred orientation at (200)crystal plane, and there were a lot of stacking fault ribbons lying in cobalt-base solid solution. The results also showed that the carbide which composed eutectic with solid solution was(Cr,Fe) 7C 3 having hexagonal lattice with lamellar and flake twin. |
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| Keywords: | powder plasma arc surfacing cobalt-base alloy preferred orientation microstructure |
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