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首页> 外文会议>International Thermal Spray Conference >Investigation of the Corrosion Behavior of HVOF-Sprayed Carbide Cermet Coatings in Molten Al-Zn-Si Alloy Bath
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Investigation of the Corrosion Behavior of HVOF-Sprayed Carbide Cermet Coatings in Molten Al-Zn-Si Alloy Bath

机译：熔融Al-Zn-Si合金浴中HVOF喷涂碳化物金属陶瓷涂层腐蚀行为的研究

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摘要

In the continuous hot-dip galvanization process, the corrosion and chemical stability of the sink roll in the galvanizing bath are important issues that affect quality and productivity. In order to protect the sink roll, carbide cermet and/or ceramic coatings were deposited on the surface of the sink roll. The WC-, Cr{sub}3C{sub}2-cermet coatings were deposited by high velocity oxygen fuel (HVOF) spray, respectively. The coating samples were immersed in molten Zn-alloy containing 50 wt.% aluminum at 833K for 24 hr and 144 hr, respectively. The inter-diffusion and inter-reaction of Zn, Al and elements in the coating and corrosion behavior of these coatings were investigated by XRD, SEM and EPMA, etc. The corrosion mechanisms of the carbide cermet coatings and ceramic coatings in molten High Al-Zn-alloy were proposed.
机译：在连续热浸镀锌过程中，镀锌浴中水槽辊的腐蚀和化学稳定性是影响质量和生产率的重要问题。为了保护水槽辊，碳化物金属陶瓷和/或陶瓷涂层沉积在水槽辊的表面上。通过高速氧气燃料（HVOF）喷雾沉积WC-，Cr {亚} 3C {Sub} 2-Cermet涂层。将涂料样品浸入熔融Zn合金中，含有50重量％的铝，分别为833K〜24小时和144小时。通过XRD，SEM和EPMA等研究Zn，Al和Zn，Al和腐蚀行为中的渗透和腐蚀行为的互连和反应。碳化物金属陶瓷涂料和熔融高Al-陶瓷涂层的腐蚀机制提出了Zn合金。

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