A dense and compact laser cladding layer with solid metallurgical bonding significantly improved corrosion resistance of Mg alloy for engineering applications

Li, Sheng; Yi, Laihua; Jia, Xiao; Dong, Xiang; Tong-fang, Liu; Ji, Bin

doi:10.1002/maco.202011565

Cited by 7 publications

(3 citation statements)

References 40 publications

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“…When the shock wave propagates into the target, the intensity gradually decreases, which leads to a decrease in strain and strain rate, resulting in strain-induced microstructural changes (Hu et al, 2006). There are many kinds of laser treatment methods for Mg alloy, for example, laser remelting (Xiao et al, 2022), laser shock processing (Zhang et al, 2010;Zhang et al, 2020b;Liu et al, 2020a), laser alloying (Chen et al, 2010;Majumdar and Manna, 2010), laser cladding (Li et al, 2020;Chen et al, 2016). Among them, laser Surface morphologies.…”

Section: Figurementioning

confidence: 99%

Progress of laser surface treatment on magnesium alloy

et al. 2022

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Magnesium (Mg) metals have been widely used in various fields as one of the most promising lightweight structural materials. However, the low corrosion resistance and poor mechanical properties restrict its applications. Surface treatments are common approach to enhance the mechanical strength and corrosion resistance of Mg metals. Among them, laser surface treatment generates novel tissues and structures in situ on the sample surface, thereby improving properties of mechanical strength and corrosion resistance. We briefly describe the changes in surface organization that arise after laser treatment of Mg surfaces, as well as the creation of structures such as streaks, particles, holes, craters, etc., and provide an overview of the reasons for the alterations. The effect of laser processing on wettability, hardness, friction wear, degradation, biocompatibility and mechanical properties were reviewed. At last, the limitations and development trend of laser treatment on Mg metals research were further pointed out.

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Section: Figurementioning

confidence: 99%

Progress of laser surface treatment on magnesium alloy

et al. 2022

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“…[4][5][6] Laser cladding is a surface modification technology that uses a high energy density laser beam to rapidly melt and solidify the coating material and substrate surface to form a good metallurgical bonding. [7,8] The coating obtained by laser cladding has the advantages of a small heat-affected zone (HAZ), small deformation, controllable dilution rate, fine and dense microstructure. Strengthening the surface of the hot working die and repairing the damaged die surface by laser cladding technology is helpful to prolong the service life and reduce the manufacturing cost, thus having considerable application prospects.…”

Section: Introductionmentioning

confidence: 99%

Enhanced corrosion and wear properties of H13 steel with Co‐based alloy coating prepared by laser cladding

Zhang

Wang

et al. 2022

Materials & Corrosion

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In this study, Stellite 21 Co‐based alloy coating was prepared on the surface of the H13 steel substrate by laser cladding. The phase composition, microstructure, chemical constitution, microhardness, and wear property of the coating were studied, respectively. The corrosion resistance of the coating was evaluated by electrochemical test and salt spray test. The results show that the coating is mainly composed of γ‐Co, CoCx, and Cr7C3 phases. γ‐Co solid solution matrix separates within the dendrites, while Mo‐rich intermetallic phases and carbides separate in the interdendritic regions. The average microhardness of the coating is twice that of the H13 substrate. The wear loss of the coating is 74.3% lower than that of the substrate, exhibiting better wear resistance. The main strengthening mechanisms of the coating are solid solution strengthening and second phase strengthening. The self‐corrosion potential of the coating is more positive than that of the H13 steel and the corrosion current density is only 1/160 of the H13 steel. The salt spray test after 168 h reveals that the coating exhibits much better corrosion resistance than that of the substrate.

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“…[8] Once the degradation occurred, the implants would dramatically reduce the strength, and the hydrogen gas bubbles result in tissue inflammation. [9][10][11] Hence, it is necessary to improve the corrosion resistance of Mg alloys, [12] to ensure that the in vivo degradation rate matches the self-healing process of the tissue.…”

Section: Introductionmentioning

confidence: 99%

Effects of Cu on the corrosion behavior and microstructure of Mg–Zn–Ca bulk metallic glass

Yang

et al. 2021

Materials & Corrosion

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For the purpose of developing biodegradable magnesium alloys with suitable properties for biomedical applications, Mg-Zn-Ca-Cu metallic glasses were prepared by copper mold injection methods. In the present work, the effect of Cu doping on mechanical properties, corrosion behavior, and glass-forming ability of Mg 66 Zn 30 Ca 4 alloy was studied. The experimental findings demonstrated that the incorporation of Cu decreases the corrosion resistance of alloys, but increases the microhardness and degradation rate slightly. However, the addition of a trace amount of Cu can make the samples have antibacterial properties. Therefore, Mg-Zn-Ca-Cu has great advantages in clinical implantation and is the potential implant material.

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A dense and compact laser cladding layer with solid metallurgical bonding significantly improved corrosion resistance of Mg alloy for engineering applications

Cited by 7 publications

References 40 publications

Progress of laser surface treatment on magnesium alloy

Progress of laser surface treatment on magnesium alloy

Enhanced corrosion and wear properties of H13 steel with Co‐based alloy coating prepared by laser cladding

Effects of Cu on the corrosion behavior and microstructure of Mg–Zn–Ca bulk metallic glass

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