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热喷涂技术:2024,16(3):22-27
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高能球磨对WC-NiMoCrFeCo复合粉末机械合金化的影响研究
林丽丽1,杨谨赫2,3,杜开平2,3,皮自强2,3,郑兆然2,3,陈星2,3
(1.江西漂塘钨业有限公司;2.北矿新材科技有限公司)
Study on the Influence of High-energy Milling on the Mechanical Alloying of WC-NiMoCrFeCo Composite Powder
LIN Lili1, Yang Jinhe2,3, Miao Xiaofeng1, DU Kaiping2,3, PI Ziqiang2,3, Zheng Zhaoran2,3, Chen Xing2,3
(1.Jiangxi Piaotang Tungsten Industry Co., Ltd;2.BGRIMM Advanced Materials Science &3.Technology Co., Ltd)
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投稿时间:2024-06-17    修订日期:2024-07-24
中文摘要: 为探讨高能球磨对WC-NiMoCrFeCo复合粉末机械合金化过程及超音速火焰喷涂WC-NiMoCrFeCo涂层耐蚀性能的影响,系统研究了球磨时间和球磨转速对Ni、Cr、Fe在复合粉末中分布均匀性的影响,发现适当的球磨条件能显著改善粉末的均匀性。结果表明,当球磨时间为2 h,球磨罐自转速度为350 r/min时,所得复合粉末具有最佳的均匀性。此外,与传统的WC-12Co涂层相比,超音速火焰喷涂的WC-NiMoCrFeCo涂层展现出更优异的耐酸性腐蚀性能。本研究为提升热喷涂金属陶瓷涂层的耐蚀性能提供了新的思路和试验依据。
Abstract:In order to explore the influence of high-energy ball milling on the mechanical alloying process of WC-NiMoCrFeCo composite powder and the corrosion resistance of HVOF WC-NiMoCrFeCo coatings, the effects of ball milling time and speed on the distribution uniformity of Ni, Cr and Fe in composite powder were systematically studied. It is found that the uniformity of powder can be improved significantly under proper milling conditions. The experimental results show that when the milling time is two hours and the rotation speed of the ball milling is 350 r/min, the composite powder has the best homogeneity. In addition, compared with the traditional WC-12Co coating, the supersonic flame sprayed WC-NiMoCrFeCo coating shows better acid corrosion resistance. This study provides a new idea and experimental basis for improving the corrosion resistance of thermal sprayed cermet coatings.
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基金项目:江西钨业控股集团有限公司重大科技专项(JWGF-21ZD-01)
引用文本:
林丽丽,杨谨赫,杜开平,皮自强,郑兆然,陈星.高能球磨对WC-NiMoCrFeCo复合粉末机械合金化的影响研究[J].热喷涂技术,2024,16(3):22-27.
LIN Lili,YANG Jinhe,DU Kaiping,PI Ziqiang,ZHENG Zhaoran,CHEN Xing.Study on the Influence of High-energy Milling on the Mechanical Alloying of WC-NiMoCrFeCo Composite Powder[J].Thermal Spray Technology,2024,16(3):22-27.

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