Author
Hezhou Liu
Bio: Hezhou Liu is an academic researcher from Shanghai Jiao Tong University. The author has contributed to research in topics: Tribology & Lubricant. The author has an hindex of 2, co-authored 2 publications receiving 190 citations.
Topics: Tribology, Lubricant, Delamination
Papers
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TL;DR: In this paper, the friction behavior and wear mechanism of Ni-P matrix composites with PTFE and/or SiC particles composite coating are investigated by virtue of ring-on-disk wear machine at a high load of 150 N.
127 citations
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TL;DR: In this paper, the friction and wear properties of the copper matrix composites reinforced with short carbon fibers (CFs) were studied and the influence of short CFs contents, load and rotating speed on tribological behavior of composites was discussed.
78 citations
Cited by
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TL;DR: In this article, the authors reviewed the tribological advancement of different electroless nickel coatings based on the bath types, structure and also the tribo testing parameters in recent years.
477 citations
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TL;DR: A review of the research and development works conducted over the past few decades on carbon fiber reinforced metal matrix composites (CFR-MMC) can be found in this paper.
Abstract: This paper reviews the research and development works conducted over the past few decades on carbon fiber reinforced metal matrix composites (CFR-MMC). The structure and composition of carbon fiber and its bonding to metal matrix have an impact on the properties of the resulting CFR-MMC remarkably. The research efforts on process optimization and utilizing of carbon fibers are discussed in this review. The effect of carbon fiber on structural, physical and mechanical properties of metal matrix composite are studied as well. This review also provide an overview of the research to date on various fabrication methods that is used for production of CFR-MMC.
378 citations
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TL;DR: In this paper, a new processing concept was developed to produce nano-structured metal-matrix composite coatings, which combines sol-gel and electroless plating techniques to prepare highly dispersive oxide nano-particle reinforced composite materials.
Abstract: A new processing concept has been developed to produce nano-structured metal-matrix composite coatings. This method combines sol-gel and electroless plating techniques to prepare highly dispersive oxide nano-particle reinforced composite coatings. Transparent TiO2 sol was added into the standard electroless plated Ni–P solution at a controlled rate to produce Ni–P–TiO2 nano-composite coatings on Mg alloys. The coating was found to have a crystalline structure. The nano-sized TiO2 particles (∼ 15 nm) were well dispersed into the Ni–P coating matrix during the co-deposition process. This technique can effectively avoid the agglomeration of nano-particles in the coating matrix. As a result, the microhardness of the composite coatings were significantly increased to ∼ 1025 HV200 compared to ∼ 710 HV200 of the conventional composite coatings produced with solid particle mixing methods. Correspondingly, the wear resistance of the new composite coatings was also greatly improved.
167 citations
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TL;DR: In this paper, carbon fibers reinforced nickel-based composite coatings (CFs/Ni) were fabricated on the surface of 1Cr13 stainless steel by laser cladding (LC) to enhance the wear resistance and corrosion resistance of Ni-based coatings.
Abstract: To enhance the wear resistance and corrosion resistance of Ni-based coatings, carbon fibers reinforced nickel-based composite coatings (CFs/Ni) were fabricated on the surface of 1Cr13 stainless steel by laser cladding (LC). The microstructure characteristics, microhardness, wear and corrosion performances of the composite coatings were investigated. The results show that CFs can effectively improve the corrosion and wear resistances of Ni-based coatings. With increasing laser scanning speed, the morphology of CFs in composite coatings is more integral and the corrosion and wear resistances of the composite coatings are improved. Especially, when laser scanning speed is increased to 8 mm/s, the average microhardness of the composite coating reaches up to 405 HV0.2, which is about 1.3 times higher than that of Ni-based coating. Moreover, the corrosion current density and the wear rate of the composite coating are only 7% and 55% of those of the Ni-based coating, respectively, which is attributed to the good properties and homogeneous distribution of CFs and finer microstructure of composite coating.
162 citations
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TL;DR: In this paper, friction stir processing (FSP) was used to produce copper-graphite surface composites and five tools with different pin profile were employed in order to achieve a comprehensive dispersion.
157 citations