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粘结相含量对超音速火焰喷涂Cr_3C_2-NiCr涂层冲蚀磨损的影响 被引量:5

Influence of bond content on the erosion wear of HVOF sprayed Cr_3C_2-NiCr coatings
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摘要 采用不同粘结相含量的粉末,运用超音速火焰喷涂方法制备了Cr3C2-NiCr涂层。运用干砂冲蚀磨损试验机检测不同冲蚀角度下涂层的冲蚀磨损性能,研究粉末粘结剂含量对沉积涂层冲蚀磨损性能的影响。运用扫描电镜技术观察并分析Cr3C2-NiCr涂层冲蚀磨损失效行为。结果表明:粘结相含量不同的HVOF喷涂涂层均表现出脆性材料的冲蚀磨损特性,随冲蚀次数的增加失重量呈近似线性增加;粘结相在涂层中的分布形式影响涂层的抗冲蚀性能,但不改变冲蚀失效的主要机制。 Cr3 C2-NiCr coatings of different bond content were deposited by high velocity oxy-fuel (HVOF)spraying technology. The erosion wear properties of coatings were studied at different jet angles. The erosion mechanism of Cr3 C2- NiCr coatings were examined through SEM technology. It was found that erosion wear properties of the coatings of differ- ent powder ingredient similar to that of brittle materials. It showed that a nearly linear relation between weight loss of the coatings and the erosion times. The different distribution of NiCr affected the erosion performance of Cr3 C2-NiCr coatings but no changed the erosion mechanism.
作者 富伟 王芳
出处 《化工新型材料》 CAS CSCD 北大核心 2014年第7期178-180,共3页 New Chemical Materials
基金 九江学院大学生自主创新性实验项目(10XSCXXSY07)
关键词 粘结相 超音速火焰喷涂 CR3C2-NICR涂层 冲蚀行为 powder ingredient, HVOF spraying, Cr3 C2-NiCr coating, erosion performance
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  • 1Gustafssons,Thermal coationgs as corrosion protection in boilers[A].Advances in Thermal Spraying[C].Proceedings of ITSC86.Montreal:The Welding Institute of Canada,1986:19-28.
  • 2Levy A V.Solid particles erosion and erosion-corrosion of materials[M].Ohio:ASM International Materials Park,1995.

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