| 稀土对激光熔覆生物陶瓷涂层强度的影响 |
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| 引用本文： | 邓迟,王勇,张亚平,高家诚.稀土对激光熔覆生物陶瓷涂层强度的影响[J].材料热处理学报,2005,26(5):28-31. |
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| 作者姓名： | 邓迟 王勇 张亚平 高家诚 |
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| 作者单位： | 1. 乐山师范学院,四川,乐山,614004
2. 重庆大学材料科学与工程学院,重庆,400044 |
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| 基金项目： | 四川省教育厅青年基金（20038036）;国家自然科学基金（59571045） |
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| 摘 要： | 测试了激光熔覆生物陶瓷涂层与基体的结合强度、涂层抗弯、抗拉和抗压强度，并计算了弹性模量。结果表明，稀土能够提高涂层与基体的结合强度、抗弯及抗拉强度，但降低了涂层的抗压强度。稀土在激光熔覆条件下充分扩散传质弥散分布于涂层熔池内，分散的稀土颗粒促进晶体形核和成长，细化晶粒，强化涂层。激光熔覆涂层复合材料满足生理条件下的强度要求。
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| 关 键 词： | 激光熔覆 生物陶瓷涂层 强度 稀土 |
| 文章编号： | 1009-6264（2005）05-0028-04 |
| 收稿时间： | 2005-01-05 |
| 修稿时间： | 2005-01-052005-02-21 |
Effects of Rare-Earth on Strength of Laser Clad Bioceramic Coating |
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| DENG Chi,WANG Yong,ZHANG Ya-ping,GAO Jia-cheng.Effects of Rare-Earth on Strength of Laser Clad Bioceramic Coating[J].Transactions of Materials and Heat Treatment,2005,26(5):28-31. |
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| Authors: | DENG Chi WANG Yong ZHANG Ya-ping GAO Jia-cheng |
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| Affiliation: | DENG Chi~1,WANG Yong~2,ZHANG Ya-ping~2,GAO Jia-cheng~2 |
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| Abstract: | This paper reported the role of rare-earth in strength of the laser clad coating.The bonding strength between the substrate and the coating,the bending,the compressing,tensile strength and elastic modulus of the coating were also determined.These results show that the bonding strength,the bending and tensile strength between the coating and substrate are enhanced by adding rare-earth to ceramic raw powders,but the compressing strength is decreased. Rare-earth can be adequately dispersed in the melting pool by laser cladding,and the coating strength is improved by making the coat fine-grain.This coating could satisfy the requirements of strength as bioceranic caoting. |
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| Keywords: | laser cladding bioceramic coating strength rate-earth |
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