| 张维平,刘中华,邹龙江.工艺参数对钛合金表面激光熔覆NiCrTiC涂层组织性能影响[J].,2009,(3):369-373 |
| 工艺参数对钛合金表面激光熔覆NiCrTiC涂层组织性能影响 |
| Effect of processing parameters on microstructure of NiCrTiC coating by laser cladding on titanium alloy surface |
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| DOI：10.7511/dllgxb200903012 |
| 中文关键词: 钛合金 激光熔覆 涂层 显微组织 |
| 英文关键词: titanium alloy laser cladding coating microstructure |
| 基金项目:大连市基金资助项目2006A10GX063). |
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| 中文摘要: |
| 利用激光熔覆工艺在TC4表面制备出原位自生TiC陶瓷颗粒增强Ni基复合材料涂层．利用OM、XRD、SEM、EDS、EPMA对涂层组织结构进行了研究．结果表明 当激光比能为12.5 kJ/cm 2时，可获得优异的复合涂层；复合涂层中以TiC为主的陶瓷颗粒增强相弥散地分布在β-Ti和γ-Ni两相固溶体中；涂层显微硬度比基体显著提高． |
| 英文摘要: |
| In-situ synthesis of TiC ceramic particle reinforced Ni-base alloy composite coating was produced on TC4 surface by laser cladding. Microstructure on the coating is studied by OM, XRD, SEM, EDS, EPMA . Results show that excellent coating is obtained when the laser power is 2.5 kJ/cm 2. Main phase in the coating is TiC particles distributing in the β-Ti and γ-Ni solid solution. The microhardness of the coating increases prominently compared with the matrix. |
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