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王志平, 纪朝辉, 李全华, 刘长江. 超音速火焰喷涂涂层抗高温氧化和耐冲蚀性能[J]. 焊接学报, 2005, (12): 6-8.
引用本文: 王志平, 纪朝辉, 李全华, 刘长江. 超音速火焰喷涂涂层抗高温氧化和耐冲蚀性能[J]. 焊接学报, 2005, (12): 6-8.
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WANG Zhi-ping, JI Zhao-hui, LI Quan-hua, LIU Chang-jiang. Thermal fatigue of WC coatings deposited with HVOF[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2005, (12): 6-8.
Citation: WANG Zhi-ping, JI Zhao-hui, LI Quan-hua, LIU Chang-jiang. Thermal fatigue of WC coatings deposited with HVOF[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2005, (12): 6-8.
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超音速火焰喷涂涂层抗高温氧化和耐冲蚀性能

Thermal fatigue of WC coatings deposited with HVOF

    摘要
  • 摘要: 采用超音速火焰喷涂(HVOF)技术喷涂WC涂层,并对其抗高温氧化和耐冲蚀性能进行测定。试验结果显示,与基体1Cr12W 1MoV比较,HVOF制备的WC-17Co、WC-12Co、NiCrBSi+35WC涂层具有非常良好的抗高温氧化和耐冲蚀性能。其中WC-17Co涂层在任何冲蚀角度下均表现出优良的抗冲蚀能力,是一种理想的汽轮机高压部件防护涂层。

     

    Abstract: The thermal shock resistance of the WC coating deposited with HVOF was studied. The results indicated that HVOF coatings after 15 times thermal shock are all perfect without any defects as crack, spalling. In contrast with, the coatings deposited with plasma have cracked and spalled completely after 3 times thermal shock. HVOF WC coatings resistance ability to thermal shock is very excellent.

     

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