| Porosity and surface roughness simulation of nickel-aluminum coating in plasma spray forming |
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| 引用本文： | 曾好平 方建成 徐文骥 赵紫玉 王莉. Porosity and surface roughness simulation of nickel-aluminum coating in plasma spray forming[J]. 中国有色金属学会会刊, 2006, 16(A03): 1932-1935 |
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| 作者姓名： | 曾好平 方建成 徐文骥 赵紫玉 王莉 |
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| 作者单位： | [1]Key Laboratory for Precision and Non-traditional Machining Technology of Ministry of Education, Dalian University of Technology, Dalian 116024, China [2]College of Mechanical Engineering and Automation, Huaqiao University, Quanzhou 362021, China [3]College of Mechanical Engineering, University of Science and Technology Liaoning, Anshan 114051, China |
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| 基金项目： | Foundation item： Project（50675072） supported by the National Natural Science Foundation of China; Project（2006J0165） supported by the Natural Science Foundation of Fujian Province of China; Project（20062178） supported by the Natural Science Foundation of Liaoning Province of China |
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| 摘 要： | As the important evaluation parameters concerning the spray qualities, the porosity and surface roughness of the coatings obtained by thermal spray forming have great influence on their forming accuracy, mechanical properties and service lifetime. But it is difficult to predict or control the two parameters for such a highly nonlinear process. A two-dimensional simulation of coating porosity and surface roughness of nickel-aluminum alloy （Ni-5%Al） in plasma spray forming was presented, which was based on the multi-dimensional statistical behaviors of the droplets as well as the simplification and digitization of the typical splat cross sections. Further analysis involving the influence of the droplet diameters and the scanning velocities of the spray gun on the two parameters was conducted. The simulation and analysis results indicate that the porosity and surface roughness are more influenced by the droplet diameters, but less influenced by the spray gun velocities. The results will provide basis for the prediction or control of coating mechanical properties by depositing parameters.
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| 关 键 词： | 孔隙度 粗糙度 镍 铝 合金 等离子体 |
| 收稿时间： | 2006-07-28 |
| 修稿时间： | 2006-09-15 |
Porosity and surface roughness simulation of nickel-aluminum coating in plasma spray forming |
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| ZENG Hao-ping, FANG Jian-cheng, XU Wen-ji,ZHAO Zi-yu, WANG Li. Porosity and surface roughness simulation of nickel-aluminum coating in plasma spray forming[J]. Transactions of Nonferrous Metals Society of China, 2006, 16(A03): 1932-1935 |
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| Authors: | ZENG Hao-ping FANG Jian-cheng XU Wen-ji ZHAO Zi-yu WANG Li |
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| Abstract: | |
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| Keywords: | porosity surface roughness simulation nickel-aluminum alloy plasma spray forming |
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