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首页> 外文期刊>Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics >Boosting wear properties of Inconel718 superalloy by uniform dispersing graphene nanoplatelets through laser melting deposition
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Boosting wear properties of Inconel718 superalloy by uniform dispersing graphene nanoplatelets through laser melting deposition

机译：通过激光熔化沉积均匀分散石墨烯纳米孔升高Inconel718高温合金的磨损性能

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摘要

In order to further improve the wear and corrosion resistance, the graphene nanoplatelets composite Inconel 718 alloy (GNPs/IN718 composites) was prepared by laser melting deposition (LMD). The microstructure, wear and electrochemical corrosion resistance of IN718 and composites were studied. The microstructure of composites is M7C3/gamma eutectic, accompanied by (Ti,Nb)C precipitation. The results of Raman and TEM showed that the existence of GNPs in composites. The average microhardness of the GNPs/IN718 composites has increased by 1.125 times (544 HV0.2). GNPs is the lubricating phase during friction process, the coefficient of friction and wear rate of the composites only 68.4% and 7.14% of the IN718 alloy. GNPs/IN718 composites has better corrosion resistance than IN718 alloy. With the increase of power, the further ablation of GNPs leads to the decrease of wear and corrosion resistance. (c) 2020 Elsevier B.V. All rights reserved.
机译：为了进一步提高耐磨性和耐腐蚀性，通过激光熔化沉积（LMD）制备石墨烯纳米克隆复合型号718合金（GNPS / IN718复合材料）。 研究了IN718和复合材料的微观结构，磨损和电化学耐腐蚀性。 复合材料的微观结构是M7C3 /γ共晶，伴随（Ti，Nb）C沉淀。 拉曼和TEM的结果表明复合材料中的GNP。 GNPS / IN718复合材料的平均微硬度增加了1.125倍（544 HV0.2）。 GNPS是摩擦过程中的润滑相，复合材料的摩擦系数和磨损率仅为68.4％和7.14％的IN718合金。 GNPS / IN718复合材料具有比IN718合金更好的耐腐蚀性。 随着功率的增加，GNP的进一步消融导致耐磨性和耐腐蚀性降低。 （c）2020 Elsevier B.v.保留所有权利。

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