| 摘要: |
| 以Zr粉、B4C粉和Fe粉为原料，采用氩弧熔覆技术在Q345D钢基材表面原位合成了ZrCZrB2颗粒增强铁基熔覆层，利用X射线衍射仪、扫描电子显微镜、显微硬度计和摩擦磨损试验机对复合涂层显微组织和性能进行了观察分析。结果表明：在Q345D钢表面成功制备了ZrCZrB2熔覆层,熔覆层与基体呈良好的冶金结合。涂层的显微硬度可达1200 HV0.1,涂层耐磨性为基体的9.86倍。 |
| 关键词: 氩弧熔覆 原位生成 熔覆层 ZrCZrB2颗粒 |
| DOI： |
| 分类号: |
| 基金项目:黑龙江省教育厅重点基金资助项目(11511353) |
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| Microstructure and Wear Resistance of Insitu Synthesis ZrC-ZrB2 Particulate Reinforced Metal Matrix Composite Coating by Argon Arc Cladding |
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WANG Zhen-Ting, Zhou Li-Wen
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Department of Materials Science and Engineering, Heilongjiang Institute of Science and Technology, Harbin 150027
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| Abstract: |
| Composite coating reinforced by ZrCZrB2particle was produced on the surface of Q345D steel by means of argon arc cladding technique with the powders of Zr、B4C and Fe. The microstructure and properties of the coating were investigated and analyzed with SEM, Xray diffraction, microhardness tester, friction and wear testing machine. The results show that there is a good metallurgical bonding between the coating and the substrate and the coating is uniform and almost defect free, which means cladding layer has higher hardness. The maximum hardness value of 1200 HV0.1. At room temperature dry sliding wear test conditions, the cladding layer has good wear resistance, which is about 9.86 times than that of the matrix. |
| Key words: argonarc cladding insitu synthesis composite coating ZrCZrB2 particles |
