金属学报  2011, Vol. 47 Issue (1): 115-122    DOI: 10.3724/SP.J.1037.2010.00351

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工艺参数对爆炸喷涂WC-Co涂层性能均匀性的影响

王铁钢1), 宋丙红2), 华伟刚1), 宫骏1), 孙超1)

1) 中国科学院金属研究所金属腐蚀与防护国家重点实验室, 沈阳 110016 2) 中航工业哈尔滨东安发动机(集团)有限公司, 哈尔滨 150066

INFLUENCE OF PROCESS PARAMETERS ON THE PERFORMANCE UNIFORMITY OF DETONATION GUN SPRAYED WC-Co COATINGS

WANG Tiegang1),  SONG Binghong2),  HUA Weigang1), GONG Jun1), SUN Chao1)

1) State Key Laboratory of Corrosion and Protection, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016 2) AVIC Harbin Dong'an Engine (Group) Co., Ltd., Harbin 150066

王铁钢 宋丙红 华伟刚 宫骏 孙超. 工艺参数对爆炸喷涂WC-Co涂层性能均匀性的影响[J]. 金属学报, 2011, 47(1): 115-122.
, , , , . INFLUENCE OF PROCESS PARAMETERS ON THE PERFORMANCE UNIFORMITY OF DETONATION GUN SPRAYED WC-Co COATINGS[J]. Acta Metall Sin, 2011, 47(1): 115-122.

摘要 参考文献 相关文章 Metrics 全文: PDF(1488 KB)   摘要: 采用正交实验, 分别研究了氧燃率、喷涂距离对爆炸喷涂WC-Co涂层性能的影响. 通过工艺优化, 获得了结构均匀致密、硬度高、弹性模量大、耐磨性能好的WC-Co涂层. 利用 XRD和SEM分析涂层的物相组成、观察其微观结构, 经截面与表面力学性能和磨损性能对比, 优化后的涂层表现出近似各向同性特征. 分析指出涂层均匀的微观结构及低孔隙率是导致其近似各向同性特征的主要原因. 关键词 ： 爆炸喷涂,  WC-Co涂层,  孔隙率,  显微硬度,  弹性模量,  微尺度磨粒磨损     Abstract：Based on the orthogonal experiment, the effects of oxygen-fuel ratio and spraying distance on physical and mechanical properties of D-gun sprayed WC-Co coatings were investigated. An ideal coating with the uniform dense microstructures, high hardness and elastic modulus, and excellent wear resistance was obtained by technology optimization. The phase identifications and microstructure observation of the optimized WC-Co coating were conducted by XRD and SEM, respectively. The coating showed near-isotropic behaviors, which has been verified by the comparisons of mechanical and wear properties between cross section and surface. The mechanisms how the spraying parameters affected near--isotropic characters of the D-gun sprayed WC-Co coating were analyzed and discussed. Key words： detonation gun spraying    WC-Co coating    porosity    microhardness    elastic modulus    micro-scale abrasive wear 收稿日期: 2010-07-14      ZTFLH:  TG174.44   作者简介: 王铁钢, 男, 1978年生, 助理研究员, 博士 服务 把本文推荐给朋友 加入引用管理器 E-mail Alert RSS 作者相关文章 王铁钢 宋丙红 华伟刚 宫骏 孙超 44.8K 链接本文: https://www.ams.org.cn/CN/10.3724/SP.J.1037.2010.00351      或      https://www.ams.org.cn/CN/Y2011/V47/I1/115 [1] Lima R S, Karthikeyan J, Kay C M, Lindemann J, Berndt C C. Thin Solid Films, 2002; 416: 129 [2] Picas J A, Xiong Y, Punset M, Ajdelsztajn L, Forn A, Schoenung J M. Int J Refract Met Hard Mater, 2009; 27: 344 [3] Kucuk A, Lima R S, Berndt C C. J Am Ceram Soc, 2001; 84: 685 [4] Kulkarni A, Vaidya A, Goland A, Sampath S, Herman H. Mater Sci Eng, 2003; A359: 100 [5] Nakamura T, Qian G, Berndt C C. J AmCeramSoc, 2000; 83: 578 [6] Friis M, Persson C, Wigren J. 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