| 铝合金异形曲面热喷涂涂层的制备及性能研究 |
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| 引用本文： | 侯国梁,周惠娣,安宇龙,赵晓琴,刘光.铝合金异形曲面热喷涂涂层的制备及性能研究[J].表面技术,2010,39(3):67-70. |
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| 作者姓名： | 侯国梁 周惠娣 安宇龙 赵晓琴 刘光 |
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| 作者单位： | 中科院兰州化学物理研究所,固体润滑国家重点实验室,兰州,730000;中科院北京研究生院,北京,100049;中科院兰州化学物理研究所,固体润滑国家重点实验室,兰州,730000 |
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| 基金项目： | 国家自然科学基金委创新研究群体科学基金，国家973计划资助项目，中国科学院"西部之光"人才培养计划"西部博士资助"项目 |
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| 摘 要： | 采用大气等离子喷涂（APS）（液态CO2气化冷却和未冷却）和超音速火焰喷涂（HVOF）,在模拟加力泵涡壳的异形铝合金工件内曲面,制备了耐气蚀性较好的3种涂层,并考察涂层和异形曲面基体的结合情况及涂层的相组成、显微硬度和孔隙率。结果表明：HVOF在其焰流无法垂直喷涂的部位涂层与基体结合较差;未使用CO2冷却的APS涂层卷曲,涂层中有明显裂纹;使用CO2冷却的APS涂层与基体结合良好,涂层中没有裂纹,该工艺是目前在铝合金异形曲面制备热喷涂涂层的有效途径。
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| 关 键 词： | HVOF APS 热喷涂涂层 异形曲面 |
| 修稿时间： | 2010/6/10 0:00:00 |
Study on Preparation and Performance of Thermal Spraying Coatings onto Aluminum Alloy Abnormity Bent Surface |
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| HOU Guo-liang,ZHOU Hui-di,AN Yu-long,ZHAO Xiao-qin and LIU Guang.Study on Preparation and Performance of Thermal Spraying Coatings onto Aluminum Alloy Abnormity Bent Surface[J].Surface Technology,2010,39(3):67-70. |
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| Authors: | HOU Guo-liang ZHOU Hui-di AN Yu-long ZHAO Xiao-qin and LIU Guang |
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| Affiliation: | HOU Guo-liang1,2,ZHOU Hui-di1,AN Yu-long1,ZHAO Xiao-qin1,LIU Guang1,2(1.State Key Laboratory of Solid Lubrication,Lanzhou Institute of Chemical Physics,Chinese Academy of Sciences,Lanzhou 730000,China,2.Graduate School of Chinese Academy of Science,Beijing 100049,China) |
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| Abstract: | Three types coating that had fine cavitaion erosion resistance,derived from NiCr feedstock,were fabricated on abnormity bent surface of aluminum alloy workpieces using air plasma spraying(APS) with and without cooling by gasified CO2 and high velocity oxy-fuel(HVOF).The combination between coatings and substrate,and the composition,microharness and porosity of the coatings were reviewed.The obtained results shows that HVOF sprayed coating has bad combination with substrate where the flame can't vertically s... |
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| Keywords: | HVOF APS |
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