| 船用辅汽轮机转子汽封轴颈喷涂WC-12Co涂层的摩擦学性能 |
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| 引用本文： | 苏新勇,刘基凯,杨秀红. 船用辅汽轮机转子汽封轴颈喷涂WC-12Co涂层的摩擦学性能[J]. 中国表面工程, 2011, 24(5). DOI: 10.3969/j.issn.1007-9289.2011.05.018 |
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| 作者姓名： | 苏新勇 刘基凯 杨秀红 |
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| 作者单位： | 海军北海表面工程推广站,山东青岛,266001 |
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| 摘 要： | 采用超音速火焰喷涂技术和电镀技术分别在45钢试件表面制备了WC-12Co涂层和硬铬镀层,测试了涂层、镀层的显微硬度和室温摩擦磨损性能,并观察分析了磨损表面形貌。结果表明:WC-12Co涂层的显微硬度是电镀硬铬层的1.5倍以上;在时间为1.5h,载荷为20N和100N的试验条件下,电镀硬铬层摩擦磨损失质量分别为WC-12Co涂层的3倍和4倍,表明WC-12Co涂层的耐磨性能明显优于电镀硬铬镀层;与硬铬镀层相比,WC-12Co涂层能缩短磨合时间,较快地进入稳定磨损阶段,该阶段因WC-12Co涂层摩擦因数低,波动范围小,更有利于摩擦状态下延长工件的使用寿命。将超音速火焰喷涂技术用于修复汽轮机转子汽封轴颈,可极大提高汽轮机转子的性能,降低维修频率,延长使用寿命。
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| 关 键 词： | 超音速火焰喷涂 WC-12Co涂层 摩擦磨损 改性修复 |
Wear Resistance of WC-12Co Coating Sprayed on the Sealed Shaft Neck of the Auxiliary Steam Turbine Rotor for a Ship |
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| SU Xin-yong,LIU Ji-kai,YANG Xiu-hong. Wear Resistance of WC-12Co Coating Sprayed on the Sealed Shaft Neck of the Auxiliary Steam Turbine Rotor for a Ship[J]. China Surface Engineering, 2011, 24(5). DOI: 10.3969/j.issn.1007-9289.2011.05.018 |
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| Authors: | SU Xin-yong LIU Ji-kai YANG Xiu-hong |
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| Affiliation: | SU Xin-yong,LIU Ji-kai,YANG Xiu-hong (Station for Spreading Superficeal Engineering of North China Sea Fleet,Qingdao Shandong 266001) |
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| Abstract: | WC-12Co coating and electronic hard chrome plating were prepared on 45 steel by means of high velocity oxygen fuel spray(HVOF) and electronic hard chrome(EHC) plating respectively.Microhardness and wear resistance of the prepared WC-12Co coating and electronic hard chrome plating were tested by the block on ring friction and wear tester.And the surface morphologies were observed and analized by microscope.The results show that the microhardness of WC-12Co coating is 1.5 times higher than that of the EHC pla... |
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| Keywords: | high velocity oxygen fuel spay(HVOF) WC-12Co coating friction and wear modification repair |
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