| Sliding wear behavior of high velocity arc sprayed Fe-Al coating |
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| 作者姓名： | 朱子新 徐滨士 马世宁 张伟 |
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| 作者单位： | StateKeyLaboratoryofRemanufactureTechnology,TheAcademyofArmoredForcesEngineering,Beijing,100072 |
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| 基金项目： | NationalNatureScienceFoundationofChina (No .5 0 0 0 5 0 2 4) |
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| 摘 要： | The friction and wear behavior of Fe-Al intermetallics based coating produced by high velocity are spraying technique under dry sliding at room temperature were investigated using a ball-on-disc tribotester. The effect of sliding speed on friction coefficient and wear of the coating was studied. The worn surface of the coating was analyzed by scanning electron microscope (SEM) to explore sliding friction and wear mechanism. The results show that the variations of friction coefficient can be divided into three distinct steps during the trail. Both the friction coefficient and the wear of the coating increase with increased sliding speed due to accelerated crack propagation rate and lamellar structure with poor ductility of the coating. The coating surface is subjected to alternately tensile stress and compression stress during sliding wear process, and the predominant wear mechanism of the coatings appears to be brittle fracture and delamination.
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| 关 键 词： | Fe-Al涂层 高速电弧喷涂 滑动磨损 SEM HVOF SHS HVAS |
Sliding wear behavior of high velocity arc sprayed Fe-Al coating |
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| Zhu Zixin,Xu Binshi,Ma Shining and Zhang Wei Zu Zixin,Xu Binshi,Ma Shining and Zhang Wei,State Key Laboratory of Remanufacture Technology,The Academy of Armored Forces Engineering,Beijing.Sliding wear behavior of high velocity arc sprayed Fe-Al coating[J].China Welding,2003,12(1):1-5. |
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| Authors: | Zhu Zixin Xu Binshi Ma Shining and Zhang Wei Zu Zixin Xu Binshi Ma Shining and Zhang Wei State Key Laboratory of Remanufacture Technology The Academy of Armored Forces Engineering Beijing |
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| Affiliation: | State Key Laboratory of Remanufacture Technology, The Academy of Armored Forces Engineering, Beijing, 100072 |
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| Abstract: | The friction and wear behavior of Fe Al intermetallics based coating produced by high velocity arc spraying technique under dry sliding at room temperature were investigated using a ball on disc tribotester. The effect of sliding speed on friction coefficient and wear of the coating was studied. The worn surface of the coating was analyzed by scanning electron microscope (SEM) to explore sliding friction and wear mechanism. The results show that the variations of friction coefficient can be divided into three distinct steps during the trail. Both the friction coefficient and the wear of the coating increase with increased sliding speed due to accelerated crack propagation rate and lamellar structure with poor ductility of the coating. The coating surface is subjected to alternately tensile stress and compression stress during sliding wear process, and the predominant wear mechanism of the coatings appears to be brittle fracture and delamination. |
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| Keywords: | Fe Al intermetallics coating friction and wear behavior high velocity arc spraying |
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