Nano-Particles Reinforced Co-Based Gradient Coating with High Wear-Resistance Prepared in-situ by Laser on Surface of Crystallizer Copper Alloy

Suiyuan, 陈岁元 Chen; Jiang, 董江 Dong; Jun, 陈军 Chen; Jing, 梁京 Liang; Changsheng, 刘常升 Liu

doi:10.3788/cjl201138.0703006

Cited by 2 publications

(1 citation statement)

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“…If laser-clad nanometer ceramic particles reinforced metal-matrix graded coatings could be prepared, it is hoped that the composite coating could have excellent performance. However, little attention has been conducted on the laser-clad nano-composite graded coatings [10].…”

Section: Introductionmentioning

confidence: 99%

Preparation Technology of Nanometer Ceramic Particles Reinforced Metal-Matrix Graded Coating by Laser Multi-Layer Cladding

Wang

Tian

Wang

et al. 2012

AMM

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In this study, a new preparation method for nanometer ceramic particles reinforced metal-matrix graded coating by laser multi-layer cladding technology was introduced. The preparation process including following steps: Firstly, a groups of mixture ratio of micro/nanometer covered composite powders are fabricated using a different content of nanometer ceramic particles and micrometer metal-matrix powders by mechanical ball milling; Secondly, the composite powders are suppressed to laser cladding layer by squash presetting; Last, the layers with an increased content of nanometer ceramic particles are laser clad in turn, then a metal-matrix graded coating strengthened by nanometer ceramic particles is prepared. Furthermore, an experiment for fabricating nano-Al2O3 particles reinforced MCrAlY graded coating by laser multi-layer cladding process was carried out. The results show that the laser-clad graded coating has no obvious interface between the different layers with dense and continuous structure. In addition, the microstructure of the laser layer was refined and composed of fine equiaxed grains because of addition of nanometer ceramic particles.

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Section: Introductionmentioning

confidence: 99%

Preparation Technology of Nanometer Ceramic Particles Reinforced Metal-Matrix Graded Coating by Laser Multi-Layer Cladding

Wang

Tian

Wang

et al. 2012

AMM

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Fabrication of nanoparticulate reinforced metal matrix composites by laser cladding

Zhong

Jiang

Zhang

et al. 2014

Journal of Laser Applications

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The nanoparticulate reinforced metal matrix composites (nPRMMCs) can further improve the ductility and fracture toughness of conventional microscale PRMMCs. The uniform dispersion of nanosized hard particles in the matrix is vital due to their strong tendency to agglomerate. This paper summarizes the state-of-the-art fabrication process of nPRMMCs by laser cladding via both ex-situ route and in-situ route. Concerns have been focused on the uniform dispersion of nanoparticles and their interface bonding with the matrix. The current challenges and future developments are discussed. This summarization will be helpful for the further research on the fabrication and applications of nPRMMCs

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Nano-Particles Reinforced Co-Based Gradient Coating with High Wear-Resistance Prepared in-situ by Laser on Surface of Crystallizer Copper Alloy

Cited by 2 publications

References 0 publications

Preparation Technology of Nanometer Ceramic Particles Reinforced Metal-Matrix Graded Coating by Laser Multi-Layer Cladding

Preparation Technology of Nanometer Ceramic Particles Reinforced Metal-Matrix Graded Coating by Laser Multi-Layer Cladding

Fabrication of nanoparticulate reinforced metal matrix composites by laser cladding

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