首页> 外文期刊>Proceedings of the Institution of Mechanical Engineers. Part L, Journal of Materials: Design and Application >Effect of HVOF spraying parameters on fracture, erosion and thermal properties of Fe alloy-based coating materials
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Effect of HVOF spraying parameters on fracture, erosion and thermal properties of Fe alloy-based coating materials

机译:喷射喷射参数对Fe合金涂料骨折,腐蚀和热性能的影响

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摘要

Fe-based coating (Fe50Mo5C15Si10Cr10Ti10) was deposited on 316L stainless steel substrate by high-velocity oxy-fuel spraying coating process. High-velocity oxy-fuel spraying process parameters such as oxygen flow rate and spray distance were varied to investigate their effect on mechanical, wear and thermal properties. The prepared coatings were characterized in terms of mechanical properties such as micro-hardness and fracture toughness, thermal properties and erosion wear properties. X-ray diffraction analysis showed presence of hardened phase Fe_(2)Ti and Fe-Cr. Results of this study indicated that increase in oxygen flow rate from 200 to 250 slpm improved the fracture toughness and micro-hardness by 33% and 6.7%, respectively. On the other hand, increase in spray distance decreased the fracture toughness and micro-hardness by 27.2% and 6.7%, respectively. The wear rate was increased with the increase in oxygen flow rate and decreased with the increase in spray distance. The erosion wear rate was more dependent on fracture toughness as compared to micro-hardness.
机译:通过高速氧燃料喷涂涂布工艺沉积Fe基涂层(Fe50mO5c15si10cr10cr10c110c10cr10cr10c1)。诸如氧气流速和喷雾距离之类的高速氧气喷涂工艺参数,以研究它们对机械,磨损和热性能的影响。制备的涂层以机械性能如微型硬度和断裂韧性,热性能和腐蚀磨损性能特征。 X射线衍射分析显示出硬化相Fe_(2)Ti和Fe-Cr的存在。该研究的结果表明,从200至250个SLPM的氧气流速的增加将断裂韧性和微硬度分别提高33%和6.7%。另一方面,喷雾距离的增加分别将断裂韧性和微硬度降低27.2%和6.7%。随着氧气流速的增加,磨损率增加,随着喷射距离的增加而降低。与微硬度相比,侵蚀磨损率更加依赖于断裂韧性。

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