A multi-objective optimization of laser cladding process of Ni-based coating on the preheated copper alloy

Liu, Yu; Xu, Tianhao; Li, Guohui; Li, Zeyu; Du, Fengming; Guang-bin, Chen

doi:10.1016/j.mtcomm.2023.105614

Cited by 7 publications

(3 citation statements)

References 22 publications

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“…Although a cladding layer with good metallurgical bonding to the substrate was obtained, bubbles still appeared due to the molten pool disturbance. There are many factors affecting the quality of laser cladding, including the laser power, scanning speed, powder feeding rate and preheating temperature [24][25][26][27]. In addition, the preheating temperature is one of the key factors of laser cladding that has been studied by many scholars [28][29][30][31].…”

Section: Introductionmentioning

confidence: 99%

Effect of a Substrate’s Preheating Temperature on the Microstructure and Properties of Ni-Based Alloy Coatings

Liu,

Jin,

et al. 2024

Lubricants

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Laser cladding is a new technology to fabricate a coating on the surface of a metal substrate. The properties on copper substrates are usually not very good due to the high thermal conductivity and reflectivity. The appropriate preheating temperature is helpful to fabricate coatings with good quality and properties, especially for copper substrates. In order to investigate the effect of different preheating temperatures, four coatings with different preheating temperatures (100, 200, 300 and 400 °C) were fabricated via a laser on a copper substrate. The microstructures and properties of four coatings were investigated using SEM, XRD, EDS, a Vickers microhardness meter, a wear tester and an electrochemical workstation. The results show that the elements from Ni-based alloy powder were uniformly distributed among the binding region, which obtained a good metallurgical bonding. The microstructure was mainly composited of cellular, dendrite and plane crystals, and the main reinforced phases were γ (Fe, Ni), Cr0.09Fe0.7Ni0.21, WC and Ni3B. The values of average microhardness of the four coatings were 614.3, 941.6, 668.1 and 663.1 HV0.5, respectively. The wear rates of the four coatings were 9.7, 4.9, 12.5 and 13.3 × 10−5 mm3·N−1·m−1, respectively, which were less than that of the copper substrate (4.3 × 10−3 mm3·N−1·m−1). The decrease in wear rate was due to the existence of the reinforced phases, such as WC, Ni3B, M7C3 (M=Fe, Cr) and Cr0.09Fe0.7Ni0.21. The fine crystals in the coating preheated at 200 °C also improved the wear resistance. Additionally, the minimum values of corrosion current density were 3.26 × 10−5, 2.34 × 10−7, 4.02 × 10−6 and 4.21 × 10−6 mA·mm−2, respectively. It can be seen that the coating preheated at 200 °C had higher microhardness, lower wear rates and better corrosion resistance due to the existence of reinforced phases and fine and uniform crystals.

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Section: Introductionmentioning

confidence: 99%

Effect of a Substrate’s Preheating Temperature on the Microstructure and Properties of Ni-Based Alloy Coatings

Liu,

Jin,

et al. 2024

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“…In the case of selecting high-performance cladding materials, reasonable adjustment of process parameters can further improve the comprehensive protection performance of industrial equipment. RSM integrates experimental design and mathematical modeling, and adopts multiple quadratic regression equation fitting to obtain the optimal combination of design variables and the optimal value of response target [14]. RSM has the advantages of few test times, short test period, high precision, good prediction performance, and can study the interaction between factors.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study of Laser Cladding Ni-Based Coating Based on Response Surface Method

Long

Shi

et al. 2023

Coatings

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In order to extend the service life of 45# steel and reduce production costs, coating NiCrBSi alloy powder on the surface of 45# steel can meet production requirements, avoid resource waste and achieve green manufacturing. Based on response surface method (RSM), the dilution rate, aspect ratio and contact angle were taken as the optimization goals, and the process parameters (laser power, scanning speed and powder feeding rate) were optimized and the optimal process parameters were determined. On this basis, the microstructure of Ni-based coating was characterized by the cladding experiment. The friction wear and corrosion resistance of the coating were tested, and the enhancement mechanism of the wear resistance and corrosion resistance of the coating was analyzed. The results show that the optimized coating has good corrosion resistance and wear resistance. It provides a reference for the optimization of process parameters in 45# steel repair work.

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“…laser cladding) parodė mažesnę prilydyto sluoksnio pleišėjimo tikimybę (Bidron et al, 2020). Taip pat papildomas substrato pakaitinimas prieš lazerinį aplydimą leidžia tikėtis didesnio nikelio pagrindo lydinių su volframo karbidais (masės 5 %) prilydyto metalo sluoksnio storio (Liu et al, 2023). Tyrimų metu, siekiant sumažinti metalo keraminės nikelio pagrindo su volframo karbidais dangos pleišėjimą, buvo taikomas išankstinis bandinių pakaitinimas prieš apdorojant lazeriu.…”

Section: Lazerinio Apdorojimo įRanga Ir Apdorojimo Parametraiunclassified

Metalo keraminių dangų su volframo karbidais lazerinis apdorojimas ir tyrimai

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Disertacija rengta 2017-2024 metais Vilniaus Gedimino technikos universitete. Vadovas prof. dr. Olegas ČERNAŠĖJUS (Vilniaus Gedimino technikos universitetas, Medžiagų inžinerija -T 008). Vilniaus Gedimino technikos universiteto Medžiagų inžinerijos mokslo krypties disertacijos gynimo taryba: Pirmininkas doc. dr. Justinas GARGASAS (Vilniaus Gedimino technikos universitetas, Medžiagų inžinerija -T 008). Nariai: prof. dr. Onder ALTUNTAS (Eskišehiro technikos universitetas, Turkijos respublika, Transporto inžinerija -T 003), prof. dr. Audrius ČEREŠKA (Vilniaus Gedimino technikos universitetas, Mechanikos inžinerija -T 009), dr. Viktor GRIBNIAK (Vilniaus Gedimino technikos universitetas, Medžiagų inžinerija -T 008), dr. Rasa KANDROTAITĖ JANUTIENĖ (Kauno technologijos universitetas, Medžiagų inžinerija -T 008). Disertacija bus ginama viešame Medžiagų inžinerijos mokslo krypties disertacijos gynimo tarybos posėdyje 2024 m. birželio 10 d. 14 val. Vilniaus Gedimino technikos universiteto SRA-I posėdžių salėje.

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A multi-objective optimization of laser cladding process of Ni-based coating on the preheated copper alloy

Cited by 7 publications

References 22 publications

Effect of a Substrate’s Preheating Temperature on the Microstructure and Properties of Ni-Based Alloy Coatings

Effect of a Substrate’s Preheating Temperature on the Microstructure and Properties of Ni-Based Alloy Coatings

Experimental Study of Laser Cladding Ni-Based Coating Based on Response Surface Method

Metalo keraminių dangų su volframo karbidais lazerinis apdorojimas ir tyrimai

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