Microstructure and Mechanical Properties of Ni-Based Alloy Composite Coating on Cr12MoV by Laser Cladding

Gao, Yali; Yan, Tao; Li, Guohui; Lu, Pengyong; Zhang, Dongdong

doi:10.3390/coatings12111632

Cited by 13 publications

(8 citation statements)

References 21 publications

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“…The improvement in the surface wear resistance of Cr12MoV steel is more significant compared with previous strengthening methods. Additionally, there are a wealth of very promising applications due to the reduced economic cost of surface strengthening of the material [24][25][26].…”

Section: Wear Resistance Analysismentioning

confidence: 99%

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Wear Resistance of In Situ NbC-Reinforced Laser Cladding Ni45 Coatings

Yingpeng

Wang

et al. 2023

Lubricants

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In situ NbC-reinforced laser cladding Ni45 coatings have the advantages of high bond strengths, low dilution rates, small heat-affected zones and good wear resistance and have broad application prospects in the field of surface strengthening and repair of workpieces such as automotive molds and engine turbines. Previous studies have mostly used pure niobium powder for in situ synthesis to prepare Ni-based NbC coatings with a high production cost. In this paper, NbC was successfully synthesized in situ in Ni45 powder using inexpensive FeNb65 and Cr3C2. The prepared coating has a uniform microstructure and excellent wear resistance, and the reinforced phases are mainly NbC and Cr23C6. Coating 4# with 25 wt.% FeNb65 + Cr3C2 has the highest microhardness of 776.3HV0.2, about 1.45 times that of the Ni45 coating, and its wear resistance is 36.36 min/mg, about 60.6 times that of the Cr12MoV steel base material and about 23.76 times that of the Ni45 coating.

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Section: Wear Resistance Analysismentioning

confidence: 99%

“…11, x FOR PEER REVIEW 9 of 14 strengthening methods. Additionally, there are a wealth of very promising applications due to the reduced economic cost of surface strengthening of the material[24][25][26].…”

mentioning

confidence: 99%

Wear Resistance of In Situ NbC-Reinforced Laser Cladding Ni45 Coatings

Yingpeng

Wang

et al. 2023

Lubricants

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“…It is known that the strength and wear resistance of composites can be effectively improved by incorporating nano-sized particles into the metal matrix [15]. Furthermore, ceramic particle morphology significantly impacts the mechanical and physical properties of the materials [16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Abrasive Wear and Physical Properties of In-Situ Nano-TiCx Reinforced Cu–Cr–Zr Composites

Zhang

et al. 2023

Coatings

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Cu–Cr–Zr alloys reinforced in situ with TiCx nanoparticles were prepared via combustion synthesis and electromagnetic stirring casting. The microstructure of TiCx/Cu-Cr-Zr composites with various contents was analyzed. The microhardness and Brinell hardness of the composites were determined; the average volumetric abrasive wear rate and worn surface of the composites were investigated; and the electrical, thermal conductivity and thermal expansion coefficients of the materials were discussed. The results indicated that the addition of TiCx particles transformed the Cu–Cr–Zr matrix alloy microstructure from a dendritic to an equiaxed crystal, and the grain size was significantly refined as the amount added was increased. The composites with high TiCx content possessed higher hardness and abrasive wear resistance. The addition of TiCx particles reduced the electrical and thermal conductivity and thermal expansion coefficients of the materials.

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“…Surface modification technology not only improves the surface properties of the materials but also maintains the original excellent properties of the substrate [8,9]. Lasercladding technology has been widely applied in the surface processing of magnesium alloys due to its advantages such as high energy density, small heat-affected zone, and high bonding strength [10]. The physicochemical compatibility between aluminum and magnesium was observed to be good [11,12].…”

Section: Introductionmentioning

confidence: 99%

Influence of Laser Power on Microstructure and Properties of Al-Si+Y2O3 Coating

Gao

Bai

et al. 2023

Coatings

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Al-Si/7.5 wt.%Y2O3 coatings were prepared on Mg alloy with laser cladding to enhance the wear and corrosion resistance of substrate. The influence of laser power on the microstructure and properties of the coating were discussed. The results uncovered that the coatings consisted primarily of Mg2Si, Mg17Al12, Mg2Al3, Al4MgY, and α-Mg phases. Through calculating, it was observed that the crystal size decreased with the decrease in the laser power. Y2O3 gave the coating a better strengthening effect due to the fine-grain strengthening and hard-phase strengthening. The average hardness of the coating with laser power of 1100 W achieved 292.0 HV, which was approximately 3.7 times that of the substrate. The wear volume of the coating was 22.85% that of the substrate. Compared with Mg alloy, the self-corrosion potential of the coating increased by 1.09 V, and the self-corrosion current density decreased by three orders of magnitude.

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Microstructure and Mechanical Properties of Ni-Based Alloy Composite Coating on Cr12MoV by Laser Cladding

Cited by 13 publications

References 21 publications

Wear Resistance of In Situ NbC-Reinforced Laser Cladding Ni45 Coatings

Wear Resistance of In Situ NbC-Reinforced Laser Cladding Ni45 Coatings

Abrasive Wear and Physical Properties of In-Situ Nano-TiCx Reinforced Cu–Cr–Zr Composites

Influence of Laser Power on Microstructure and Properties of Al-Si+Y2O3 Coating

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