Analysis of crack behavior for Ni-based WC composite coatings by laser cladding and crack-free realization

Zhou, Shengfeng; Zeng, Xiaoyan; Hu, Qianwu; Huang, Yongjun

doi:10.1016/j.apsusc.2008.04.003

Cited by 314 publications

(107 citation statements)

References 19 publications

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“…The average microhardness of the deposited coating reached a value of 1350 HV, while that of the substrate was 200 HV. S. Zhou et al [11] studied the cladding of Ni-based WC composites by introducing an induction heater. They found that the number of cladding defects (e.g., crack and porosity) was markedly reduced by laser cladding assisted by an induction heater (LCAIH).…”

Section: Introductionmentioning

confidence: 99%

Laser cladding assisted by induction heating of Ni–WC composite enhanced by nano-WC and La2O3

Farahmand

Liu

Zhang

et al. 2014

Ceramics International

180

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Section: Introductionmentioning

confidence: 99%

Laser cladding assisted by induction heating of Ni–WC composite enhanced by nano-WC and La2O3

Farahmand

Liu

Zhang

et al. 2014

Ceramics International

180

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“…En ambas orientaciones de fabricación se observó el mismo fenómeno. La razón básica por la cual los MMCs son susceptibles al agrietamiento es la existencia de tensiones residuales, las cuales se componen de tensiones térmicas y tensiones de contracción [34,35]. Si la tensión residual es mayor que la resistencia, se produce la fractura.…”

Section: Resultados Y Discusiónunclassified

Evaluación de las propiedades tribológicas de materiales compuestos de matriz metálica (MMCs) procesados por técnicas de fabricación aditiva con haz láser (SLM)

Martínez¹,

González‐Estrada

Martínez

2017

revuin

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Este artículo puede compartirse bajo la licencia CC BY-ND 4.0 y se referencia usando el siguiente formato: E. Martínez, O. A. González-Estrada, A. Martínez, "Evaluación de las propiedades tribológicas de materiales compuestos de matriz metálica (MMCs) procesados por técnicas de fabricación aditiva con haz láser (SLM)", UIS Ingenierías, vol. 16, no. 1, pp. 101-114, Enero-Junio 2017. RESUMENEn este artículo se investigaron las propiedades mecánicas y tribológicas de materiales compuestos de matriz de acero (acero inoxidable 316L reforzado con partículas cerámicas Cr3C2) procesados por tecnologías de fabricación aditiva de fusión selectiva con láser (SLM). Se estudió el comportamiento a desgaste con el ensayo "pin-on-disk" a temperatura ambiente y se observó la superficie desgastada mediante microscopía electrónica de barrido (SEM). Los resultados indicaron que el coeficiente de fricción no tiene una tendencia clara o relación directa cuando se varía el porcentaje de refuerzo mientras que la tasa de desgaste disminuye con el aumento del contenido de refuerzo. Las mejores propiedades se obtuvieron con un 6% en peso de refuerzo. PALABRAS CLAVE:Ensayo "pin-on-disk", Coeficiente de fricción, Tasa de desgaste, Materiales compuestos de matriz metálica (MMCs), Fabricación aditiva (AM), Fusión selectiva con láser (SLM), Superficie de desgaste modelo. ABSTRACTThe mechanical and tribological properties of steel matrix composites (316L stainless steel reinforced with Cr3C2 ceramic particles) were investigated. The steel matrix composites (SMC) with three reinforcing percentages (3, 6, and 9 wt.%) were manufactured by Additive Manufacturing technologies (SLM: Selective Laser Melting). The wear behaviour was studied by using a pin-on-disk wear test at room temperature. The worn surface was analysed using Scanning Electron Microscopy (SEM). The results indicated that the friction coefficient does not have a clear tendency or direct correlation with the reinforcement variation while the wear rate decreases with increasing content of reinforcement. The better properties combination were achieved with 6 wt.% of reinforcement.

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“…Once high residual stress and even cracks occur in the laser clad coatings, they will critically restrict the extensive applications of the coatings [11][12][13][14]. As a traditional method, heat treatment can efficiently adjust microstructure and relieve residual stress in the coatings to acquire the desired properties [15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Effects of heat treatment on microstructure and mechanical properties of Ni60/h-BN self-lubricating anti-wear composite coatings on 304 stainless steel by laser cladding

Liu

et al. 2015

Applied Surface Science

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Analysis of crack behavior for Ni-based WC composite coatings by laser cladding and crack-free realization

Cited by 314 publications

References 19 publications

Laser cladding assisted by induction heating of Ni–WC composite enhanced by nano-WC and La2O3

Laser cladding assisted by induction heating of Ni–WC composite enhanced by nano-WC and La2O3

Evaluación de las propiedades tribológicas de materiales compuestos de matriz metálica (MMCs) procesados por técnicas de fabricación aditiva con haz láser (SLM)

Effects of heat treatment on microstructure and mechanical properties of Ni60/h-BN self-lubricating anti-wear composite coatings on 304 stainless steel by laser cladding

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