| 热障涂层表面粗糙度对涂层高温性能的影响 |
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| 引用本文： | 沈君,詹华,刘新基,汪瑞军.热障涂层表面粗糙度对涂层高温性能的影响[J].热喷涂技术,2012,4(2):44-46. |
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| 作者姓名： | 沈君 詹华 刘新基 汪瑞军 |
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| 作者单位： | 1. 东北轻合金有限责任公司,哈尔滨,150000
2. 北京金轮坤天特种机械有限公司,北京,100083 |
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| 摘 要： | 通过对热障涂层厚度与其表面粗糙度关系的研究，初步探讨了涂层表面粗糙度对其高温氧化性能、隔热性能和热循环性能的影响，研究表明涂层的表面粗糙度随着热障涂层厚度的增加而增大，并且随着涂层粗糙度的增加，涂层的热循环寿命先增加后减小，而其在高温氧化过程的初期，涂层重量增加迅速，氧化20h后重量增加减缓。
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| 关 键 词： | 热障涂层 表面粗糙度 涂层高温性能 |
Effect of Surface Roughness on High-temperature Properties of Thermal Barrier Coatings |
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| SHEN Jun,ZHAN Hua,LIU Xin-ji,WANG Rui-jun.Effect of Surface Roughness on High-temperature Properties of Thermal Barrier Coatings[J].Thermal Spray Technology,2012,4(2):44-46. |
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| Authors: | SHEN Jun ZHAN Hua LIU Xin-ji WANG Rui-jun |
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| Affiliation: | 1.Northeast Light Alloy Co.,Ltd,Ha’erbin 150000,china;2.Beijing Golden Wheel Special Machine Co.,Ltd,Beijing 100083,china) |
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| Abstract: | The relationship between thickness and roughness of thermal barrier coatings surface is studied.The effect of surface roughness on high-temperature oxidation resistance,thermal insulation properties and thermal cycling performance is discussed.It is found that with thickness increasing surface roughness increases,and thermal cycle life first increases and then decreases.Result of High-temperature oxidation properties show that the weight of coatings increases fast in the beginning and the increasing slowing down after 20 hours. |
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| Keywords: | : Thermal barrier coatings Surface roughness High-temperature properties |
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