• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Rare metals >Investigation of performance of WC-10Co4Cr and Cr3C2-25(NiCr) coating by HVOF spraying
【24h】

Investigation of performance of WC-10Co4Cr and Cr3C2-25(NiCr) coating by HVOF spraying

机译：HVOF喷涂研究WC-10Co4Cr和Cr3C2-25（NiCr）涂层的性能

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

High velocity oxy-fuel flame (HVOF) spraying has been usually used for producing high quality cermet coatings.WC-CoCr and Cr3C2-NiCr based coatings are widely used in industry for applications to required abrasion,sliding and erosion resistance.In this paper,WC-10Co4Cr and Cr3C2-25(NiCr) coatings prepared by HVOF spraying were studied. The microstructure,phase composition,porosity and micro hardness of these coatings were investigated by XRD,SEM and micro hardness tests.Bond strength and sliding wear tests were carried out to measure the mechanical properties of coatings. The results indicate that these coatings were compacted with low porosity (no more than 2%) and well combined with the substrate.Sliding wear tests show that the WC-10Co4Cr and Cr3C2-25(NiCr) coatings have good wear resistance,which attributes to the complex microstructures where the ceramic hard-phase (WC and cr3C2 phase) constituents are embedded in a metallic matrix (CoCr and NiCr).WC-10Co4Cr coating has higher wear resistance in comparison with Cr3C2-25(NiCr) coating.
机译：高速氧燃料火焰（HVOF）喷涂通常用于生产高质量的金属陶瓷涂层.WC-CoCr和Cr3C2-NiCr基涂层在工业上广泛用于要求耐磨性，滑动性和耐蚀性的应用。研究了通过HVOF喷涂制备的WC-10Co4Cr和Cr3C2-25（NiCr）涂层。通过X射线衍射，扫描电镜和显微硬度试验研究了这些涂层的显微组织，相组成，孔隙率和显微硬度。进行了粘结强度和滑动磨损试验以测定涂层的机械性能。结果表明，这些涂层致密性好，孔隙率低（不超过2％）并且与基材结合良好。滑动磨损试验表明WC-10Co4Cr和Cr3C2-25（NiCr）涂层具有良好的耐磨性，这归因于WC-10Co4Cr涂层比Cr3C2-25（NiCr）涂层具有更高的耐磨性，是陶瓷硬相（WC和cr3C2相）成分嵌入金属基体（CoCr和NiCr）中的复杂微观结构。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号