| 功能梯度热障涂层热震裂纹的形成和扩展 |
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| 引用本文： | 成志芳,吕广庶,王富耻,马壮,沈金文.功能梯度热障涂层热震裂纹的形成和扩展[J].北京理工大学学报,2003,23(1):30-33. |
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| 作者姓名： | 成志芳 吕广庶 王富耻 马壮 沈金文 |
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| 作者单位： | 北京理工大学,机械与车辆工程学院,北京,100081 |
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| 基金项目： | 总装备部“九五”预研项目(41312033) |
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| 摘 要： | 探索热障涂层在热震中裂纹的形成规律 ,揭示涂层热震危险截面位置 .采用在铝基体上以等离子喷涂法制备 Al/Ni- Zr O2 功能梯度涂层 ,在所研制的热性能测试仪上 ,用单面加热急冷法 ,观察不同热循环次数下的裂纹形成情况 .结果是热震 15次时首先在纯 Zr O2 与 Zr O2 和 Al/Ni质量比为 8∶ 2的界面上方产生水平裂纹 ,5 0次时出现龟裂纹 .热震裂纹出现的最危险截面在上述界面上方大约 80 μm处 ,此处热应力最大 .
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| 关 键 词： | 热障涂层 热震 水平裂纹 龟裂纹 |
| 收稿时间： | 2002/3/16 0:00:00 |
Crack Formation and Development in Thermal Barrier Coatings Made up of Functionally Gradient Materials |
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| CHENG Zhi-fang,Lv Guang-shu,WANG Fu-chi,MA Zhuang and SHEN Jin-wen.Crack Formation and Development in Thermal Barrier Coatings Made up of Functionally Gradient Materials[J].Journal of Beijing Institute of Technology(Natural Science Edition),2003,23(1):30-33. |
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| Authors: | CHENG Zhi-fang Lv Guang-shu WANG Fu-chi MA Zhuang and SHEN Jin-wen |
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| Affiliation: | School of Mechanical and Vehicular Engineering, Beijing Institute of Technology, Beijing100081, China;School of Mechanical and Vehicular Engineering, Beijing Institute of Technology, Beijing100081, China;School of Mechanical and Vehicular Engineering, Beijing Institute of Technology, Beijing100081, China;School of Mechanical and Vehicular Engineering, Beijing Institute of Technology, Beijing100081, China;School of Mechanical and Vehicular Engineering, Beijing Institute of Technology, Beijing100081, China |
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| Abstract: | |
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| Keywords: | thermal barrier coatings thermal shock horizontal cracks segmentation cracks |
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