| C/C复合材料表面CoNiCrAlTaHfY/Co复合涂层的组织 |
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| 引用本文： | 郭麒,孟天旭,席雯,丁文强,于盛旺,刘小萍. C/C复合材料表面CoNiCrAlTaHfY/Co复合涂层的组织[J]. 中国表面工程, 2018, 31(2): 29-38 |
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| 作者姓名： | 郭麒 孟天旭 席雯 丁文强 于盛旺 刘小萍 |
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| 作者单位： | 太原理工大学材料科学与工程学院 |
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| 基金项目： | 国家自然科学基金（51474154，51501125，51601124） |
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| 摘 要： | 在H2+Ar等离子刻蚀后的C/C复合材料表面进行等离子渗Co和CoNiCrAlTaHfY共渗复合处理,形成CoNiCrAlTaHfY/Co多元复合涂层,通过与刻蚀前后制备的CoNiCrAlTaHfY涂层对比分析,研究了刻蚀与Co过渡层对CoNiCrAlTaHfY/Co复合涂层组织、成分及结合强度的影响。结果表明,刻蚀前、后形成的CoNiCrAlTaHfY涂层厚度分别为10μm和14μm。刻蚀处理后,原棒状炭纤维与紧密包裹其的碳基体分别被刻蚀成针状和薄壁管,在炭纤维与基体碳之间形成孔隙,比表面积也相应增大,促进元素形核和扩散,使涂层与基体结合强度增加。在刻蚀表面与CoNiCrAlTaHfY多元涂层间增加Co过渡层,形成的CoNiCrAlTaHfY/Co复合涂层厚约30μm,复合涂层成分连续,组织均匀致密,由CrCoTa,Al2Ta,Cr2Ta,Alx Cry,Al Co2Ta,Co,AlxNiy组成,Co过渡层与CoCrAlTaHfYNi表层分别以三维岛状和柱状生长。CoNiCrAlTaHfY表层/Co过渡层/基体间的互扩散导致涂层与基体间的结合力明显提高。
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| 关 键 词： | C/C复合材料 等离子渗金属 等离子刻蚀 Co过渡层 CoNiCrAlTaHfY/Co复合涂层 |
| 收稿时间： | 2017-11-01 |
| 修稿时间： | 2018-01-13 |
Microstructure of CoNiCrAlTaHfY/Co Composite Coating Formed on C/C Composites |
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| GUO Qi,MENG Tian-xu,XI Wen,DING Wen-qiang,YU Sheng-wang and LIU Xiao-ping. Microstructure of CoNiCrAlTaHfY/Co Composite Coating Formed on C/C Composites[J]. China Surface Engineering, 2018, 31(2): 29-38 |
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| Authors: | GUO Qi MENG Tian-xu XI Wen DING Wen-qiang YU Sheng-wang LIU Xiao-ping |
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| Affiliation: | School of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024,School of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024,School of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024,School of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024,School of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024 and School of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024 |
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| Abstract: | |
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| Keywords: | C/C composites plasma alloying plasma etching Co transition layer CoNiCrAlTaHfY/Co composite coating |
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