| 热处理对镍基合金涂层与基体结合界面的影响 |
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| 引用本文： | 王立生,林涛,侯婷,邵惠萍,郭志猛.热处理对镍基合金涂层与基体结合界面的影响[J].北京科技大学学报,2011,33(1):59-64. |
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| 作者姓名： | 王立生 林涛 侯婷 邵惠萍 郭志猛 |
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| 作者单位： | 北京科技大学材料科学与工程学院,北京,100083 |
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| 基金项目： | 水利部引进国际先进水利科学技术计划资助项目 |
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| 摘 要： | 通过热浸镀法在普碳钢表面成功制备镍基合金涂层.为了提高镍基合金涂层与钢基体之间的结合强度,对镀有镍基合金涂层的基体进行了热处理.研究了热处理前、后结合界面处的显微组织和力学性能.结果表明,与热处理前相比,热处理后界面附近的涂层中析出物长大,界面处存在不连续块状铁的硼化物,界面两侧镍、铁互扩散距离增加,靠近界面的过渡带由5～8μm变为20μm.热处理前、后涂层均由γ-(Fe,Ni)、CrB、Cr2B和Cr3C2等相组成,过渡带相组成为γ-(Fe,Ni)、微量CrB和Fe23(C,B)6.热处理后,显微硬度由界面向涂层内逐渐增加,界面结合强度由140MPa提高到200MPa.
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| 关 键 词： | 镍合金 涂层 界面 热浸镀 热处理 力学性能 |
Effect of heat treatment on interfaces between Ni-based alloy coatings and substrates |
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| WANG Li-sheng,LIN Tao,HOU Ting,SHAO Hui-ping,GUO Zhi-meng.Effect of heat treatment on interfaces between Ni-based alloy coatings and substrates[J].Journal of University of Science and Technology Beijing,2011,33(1):59-64. |
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| Authors: | WANG Li-sheng LIN Tao HOU Ting SHAO Hui-ping GUO Zhi-meng |
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| Institution: | WANG Li-sheng,LIN Tao,HOU Ting,SHAO Hui-ping,GUO Zhi-meng School of Materials Science and Engineering,University of Science and Technology Beijing,Beijing 100083,China |
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| Abstract: | Ni-based alloy coatings were prepared by hot dipping on plain steel substrates successfully.The coated plain steel was heat treated to improve the bonding strength of interfaces between the coatings and the substrates.The microstructure and the mechanical properties of the interface were investigated before and after heat treatment.It is shown that after heat treatment,precipitates on the side of the coating are larger than those before heat treatment.Noncontinuous lump iron borides are found in the interfa... |
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| Keywords: | nickel alloys coatings interfaces hot dipping heat treatment mechanical properties |
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