| 铝合金表面激光熔覆铜基合金涂层研究 |
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| 引用本文： | 王维夫,孙凤久,王茂才.铝合金表面激光熔覆铜基合金涂层研究[J].激光技术,2008,32(3):240-243. |
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| 作者姓名： | 王维夫 孙凤久 王茂才 |
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| 作者单位： | 1.东北大学 理学院, 沈阳 110004; |
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| 基金项目： | 国家教育部科学技术基金 |
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| 摘 要： | 为了提高铝合金的表面强度,根据铜合金的液相分离性质,采用CO2激光熔覆方法,在铝合金表面成功制备了铜基合金涂层。结果表明,涂层的基体相为铜基固溶体,强化相主要为呈弥散分布的laves相。涂层中的强化相表现出了"富Mo核心"+"包围相"的复合结构特征,这主要是由于富Mo核心的析出为液相分离提供了异质形核条件所造成的。硬度测试表明,所获涂层的硬度约为270HV0.05,比ZL104铝合金提高了约2倍。
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| 关 键 词： | 激光技术 铜基合金 激光熔覆 铝合金 组织 硬度 |
| 文章编号： | 1001-3806(2008)03-0240-04 |
| 收稿时间： | 2007-03-07 |
| 修稿时间： | 2007年3月7日 |
Study of Cu-base coating on aluminum alloy by laser cladding |
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| WANG Wei-fu,SUN Feng-jiu,WANG Mao-cai.Study of Cu-base coating on aluminum alloy by laser cladding[J].Laser Technology,2008,32(3):240-243. |
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| Authors: | WANG Wei-fu SUN Feng-jiu WANG Mao-cai |
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| Affiliation: | WANG Wei-fu1,2,SUN Feng-jiu1,WANG Mao-cai2(1.School of Sciences,Northeastern University,Shenyang 110004,China,2.State Key Laboratory of Corrosion , Protection,Institute of Metal Research,Chinese Academy of Sciences,Shenyang 110016,China) |
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| Abstract: | According to the liquid separation property of Cu-base alloy,the Cu-base coating is obtained on the aluminum alloy by CO2 laser cladding for improving the surface strength of aluminum alloy.The results show that the matrix of the coating is Cu-base solid solution,and the main reinforcing phase is laves phase,which shows a dispersion distribution character.The reinforcing phase shows a composite structure of Mo-rich core+surrounding phase.This is mainly caused by the separation of Mo-rich cores,which furnish... |
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| Keywords: | laser technique Cu-base alloy laser cladding aluminum alloy microstructure microhardness |
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