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| 激光重熔对等离子喷涂热障涂层冲蚀行为影响 | |
| 引用本文： | 王东生,田宗军,王泾文,沈理达,黄因慧.激光重熔对等离子喷涂热障涂层冲蚀行为影响[J].焊接学报,2011,32(2):5-8. |
| 作者姓名： | 王东生 田宗军 王泾文 沈理达 黄因慧 |
| 作者单位： | 1. 铜陵学院,机械工程系,安徽,铜陵,244000;南京航空航天大学,机电学院,南京,210016 2. 南京航空航天大学,机电学院,南京,210016 3. 铜陵学院,机械工程系,安徽,铜陵,244000 |
| 基金项目： | 国家自然科学基金资助项目(59975046,50305010); 江苏省自然科学基金资助项目(BK2004005,BK2009375); 铜陵学院引进人才科研启动基金资助项目 |
| 摘 要： | 研究了等离子喷涂和激光重熔ZrO<,2>-7%Y<,2>O<,3>热障涂层的微观结构,同时考察了两种涂层的抗冲蚀性能,并探讨了其冲蚀破坏机理.试验发现,等离子喷涂热障陶瓷涂层呈典型的层状堆积特征;经过激光重熔处理后,涂层表面形成了沿热流方向生长的柱状品重熔区;相对于等离子喷涂试样,激光重熔涂层有较好的抗冲蚀性能;不管等... |
| 关 键 词： | 激光重熔 等离子喷涂 热障涂层 抗冲蚀性能 冲蚀破坏机理 |
| 收稿时间： | 2009/10/14 0:00:00 |
Effect of laser remelting on erosion behavior of plasma-sprayed thermal barrier coatings |
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| WANG Dongsheng,TIAN Zongjun,WANG Jingwen,SHEN Lida and HUANG Yinhui.Effect of laser remelting on erosion behavior of plasma-sprayed thermal barrier coatings[J].Transactions of The China Welding Institution,2011,32(2):5-8. | |
| Authors: | WANG Dongsheng TIAN Zongjun WANG Jingwen SHEN Lida and HUANG Yinhui |
| Affiliation: | WANG Dongsheng1,2,TIAN Zongjun2,WANG Jingwen1,SHEN Lida2,HUANG Yinhui2(1.Department of Mechanical Engineering,Tongling College,Tongling 244000,China,2.College of Mechanical and Electrical Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China) |
| Abstract: | The ZrO2-7%Y2O3 thermal barrier coatings fabricated by plasma spraying on TiAl alloy surface were remelted by laser.The microstructures of the plasma-sprayed and laser-remelted coatings were compared by using scanning electron microscopy(SEM).Meanwhile,the erosion experiments of the coatings were carried out and the erosion failure mechanisms were discussed.The results show that the as-sprayed ceramic coating has a typical lamellar stacking characteristic.However,the laser-remelted coating exhibits a compac... |
| Keywords: | laser remelting plasma spraying thermal barrier coatings erosion resistance failure mechanism |
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