| 超音速火焰喷涂制备多峰WC-12Co涂层的抗汽蚀性能(英文) |
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| 引用本文： | 丁彰雄,陈伟,王群.超音速火焰喷涂制备多峰WC-12Co涂层的抗汽蚀性能(英文)[J].中国有色金属学会会刊,2011(10):2231-2236. |
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| 作者姓名： | 丁彰雄 陈伟 王群 |
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| 作者单位： | 武汉理工大学能源与动力工程学院;湖南大学材料科学与工程学院; |
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| 基金项目： | Project(50479016) supported by the National Natural Science Foundation of China |
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| 摘 要： | 采用超音速火焰喷涂技术制备常规、亚微米及多峰3种WC-12Co金属陶瓷涂层,比较分析涂层的显微硬度及显微组织。采用超声振动汽蚀装置研究3种涂层的抗汽蚀性能,并采用扫描电镜观察涂层表面的汽蚀坑,探讨不同涂层的汽蚀机理。研究表明:采用超音速火焰喷涂制备的亚微米及多峰WC-12Co涂层结构致密、孔隙率低,其显微硬度明显高于常规的WC-12Co涂层。多峰WC-12Co涂层的平均显微硬度接近HV1500,远高于常规的WC-12Co涂层。在3种涂层中,多峰WC-12Co涂层表现出最优良的抗汽蚀性能,涂层的汽蚀率大约为常规涂层的40%;与常规涂层相比,多峰WC-12Co涂层的抗汽蚀性能提高150%以上。
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| 关 键 词： | 汽蚀 WC-12Co涂层 超音速火焰喷涂 多峰 |
Resistance of cavitation erosion of multimodal WC-12Co coatings sprayed by HVOF |
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| DING Zhang-xiong,CHEN Wei,WANG Qun .College of Energy & Power Engineering,Wuhan University of Technology,Wuhan ,China,.College of Materials Science , Engineering,Hunan University,Changsha.Resistance of cavitation erosion of multimodal WC-12Co coatings sprayed by HVOF[J].Transactions of Nonferrous Metals Society of China,2011(10):2231-2236. |
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| Authors: | DING Zhang-xiong CHEN Wei WANG Qun College of Energy & Power Engineering Wuhan University of Technology Wuhan China College of Materials Science Engineering Hunan University Changsha |
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| Affiliation: | DING Zhang-xiong1,CHEN Wei1,WANG Qun2 1.College of Energy & Power Engineering,Wuhan University of Technology,Wuhan 430063,China,2.College of Materials Science and Engineering,Hunan University,Changsha 410082 |
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| Abstract: | Conventional,submicron and multimodal WC-12Co cermet coatings were deposited by high velocity oxy-fuel(HVOF).The microhardness and microstructure of the coatings were compared,and the resistance of the coatings to cavitation erosion was studied by ultrasonic vibration cavitation equipment.Cavitation pits and craters were observed by SEM and cavitation mechanisms were explored.The results show that the microstructures of submicron and multimodal WC-12Co coatings prepared by HVOF are dense with little porosit... |
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| Keywords: | cavitation erosion WC-12Co coating high velocity oxy-fuel multimodal |
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