| 铝合金表面激光熔覆NiCrBSi涂层工艺参数对显微组织的影响 |
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| 引用本文： | 汪刘应,王汉功,苏勋家,刘学元. 铝合金表面激光熔覆NiCrBSi涂层工艺参数对显微组织的影响[J]. 金属热处理, 1999, 0(7): 12-15 |
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| 作者姓名： | 汪刘应 王汉功 苏勋家 刘学元 |
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| 作者单位： | 西安市高技术研究所,西安,710025 |
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| 基金项目： | “铝基表面强化”军队总装重点攻关项目 |
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| 摘 要： | 用ＹＡＧ固体激光器，采用不同的光斑直径，扫描速度对铝合金表面激光熔覆，ＮｉＣＲＢＳｉ自熔性合金涂层的相组成，微观组织进行了研究，通过试验发现，激光功率，光斑直径和扫描速度大小是影响涂层质量的重要因素，利用优化后的工艺参数获得的熔覆层，具有优良精细的显微组织，显微硬度和耐磨性能都有较大的提高，其中熔覆层的耐磨性能比原来提高了４倍的以上。
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| 关 键 词： | 激光熔覆 铝合金 涂层 耐磨性 工艺参数 |
Effect of Processing Parameters on Microstructure of NiCrBSi Coating by Laser Cladding on Aluminum Alloy Surface |
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| Wang Liuying,Wang Hangong,Su Xunjia,Liu Xueyuan. Effect of Processing Parameters on Microstructure of NiCrBSi Coating by Laser Cladding on Aluminum Alloy Surface[J]. Heat Treatment of Metals, 1999, 0(7): 12-15 |
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| Authors: | Wang Liuying Wang Hangong Su Xunjia Liu Xueyuan |
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| Abstract: | Research result of phase structure and microstructure on laser cladding NiCrBSi self fluxing alloy on aluminum alloy surface under different laser beam diameters and scanning speed by means of YAG solid laser was reported.The experimental results show that laser power,beam diameter and scanning speed was important factors which effected microquality on laser cladding coating.With laser processing parameters optimized,microstructure of laser cladding coating is extremely fine and the quality of the coating is improved,and wear resistance is increased 4 times more than that of Al base. |
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| Keywords: | laser cladding aluminum alloy coating wear resistance processing parameters |
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