| 一种新型WC-12Co粉末喷涂工艺优化与涂层性能研究 |
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| 引用本文： | 王群,唐智华,张永会,李声燕.一种新型WC-12Co粉末喷涂工艺优化与涂层性能研究[J].热喷涂技术,2011,3(1):34-38. |
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| 作者姓名： | 王群 唐智华 张永会 李声燕 |
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| 作者单位： | 1. 湖南大学材料科学与工程学院,长沙,410082
2. 赣州章源钨业新材料有限公司,赣州,341000 |
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| 摘 要： | 采用JP-8000型超音速火焰(HVOF)喷涂设备,在低碳钢基体上采用新型WC-12Co粉末和不同喷涂工艺参数制备了5种涂层,测试了涂层的结合强度、显微硬度、气孔率、开裂韧性和单道次沉积厚度.并利用XRD对喷涂粉末及涂层进行了相结构分析,用扫描电子显微镜和金相显微镜对喷涂粉末、涂层的组织结构进行了观察.结果表明:该粉末...
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| 关 键 词： | 超音速火焰喷涂 涂层:WC-12Co |
Microstructure, Performance and Spraying Parameters Study of a New WC-12Co Powder Deposited by HVOF |
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| WANG Qun,TANG Zhi-hua,ZHANG Yong-hui,LI Sheng-yan.Microstructure, Performance and Spraying Parameters Study of a New WC-12Co Powder Deposited by HVOF[J].Thermal Spray Technology,2011,3(1):34-38. |
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| Authors: | WANG Qun TANG Zhi-hua ZHANG Yong-hui LI Sheng-yan |
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| Affiliation: | 1. College of Materials Science and Engineering, Hunan University, Changsha 410082,China 2.Ganzhou Zhangyuan Tungsten New Materials Co.,Ltd,Ganzhou 341300, China) |
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| Abstract: | Five coatings were deposited on low carbon steel substrate with a new kind of WC-12Co powder by JP-8000 HVOF spraying system. The properties of bond strength,microhardness, porosity and fracture toughness and per pass thickness of the coatings were investigated. Phases of the feedstock powders and the coatings were analyzed by XRD. The characterizations of spraying feedstock powder and the microstructure of cross-section of coating were analyzed by SEM and OM respectively. The results indicated that：the spraying power exhibits sphere,only a little of WC decomposed during spraying process. Meanwhile,the coatings exhibited high stability and excellent performance,such as high bond strength,microhardness, depositing efficient,compact structure and moderate toughness. |
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| Keywords: | High velocity oxy-fuel（HVOF） Coatings WC-12Co |
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