Effect of Mo on Microstructures and Wear Properties of In Situ Synthesized Ti(C,N)/Ni-Based Composite Coatings by Laser Cladding

Wu, Fan; Chen, Tao; Wang, Haojun; Liu, Defu

doi:10.3390/ma10091047

Cited by 35 publications

(16 citation statements)

References 25 publications

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“…Surface modification coatings are widely used in industrial production for surface strengthening and remanufacturing due to their high hardness and excellent wear resistance and superior corrosion resistance [1][2][3][4]. Rollers are key components in steel manufacturing equipment, which have a great influence on the steel production efficiency [5,6].…”

Section: Introductionmentioning

confidence: 99%

Effect of Cobalt on Microstructure and Wear Resistance of Ni-Based Alloy Coating Fabricated by Laser Cladding

Wang

Chang

Liu

et al. 2017

Metals

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Abstract:Ni-based alloy powders with different contents of cobalt (Co) have been deposited on a 42CrMo steel substrate surface using a fiber laser. The effects of Co content on the microstructure, composition, hardness, and wear properties of the claddings were studied by scanning electron microscopy (SEM), an electron probe microanalyzer (EPMA), X-ray diffraction (XRD), a hardness tester, and a wear tester. The results show that the phases in the cladding layers are mainly γ, M 7 (C, B) 3 , M 23 (C, B) 6 , and M 2 B. With the increase in Co content, the amounts of M 7 (C, B) 3 , M 23 (C, B) 6 , and M 2 B gradually decrease, and the width of the eutectic structure in the cladding layer also gradually decreases. The microhardness decreases but the wear resistance of the cladding layer gradually improves with the increase of Co content. The wear resistance of the NiCo30 cladding layer is 3.6 times that of the NiCo00 cladding layer. With the increase of Co content, the wear mechanism of the cladding layer is changed from abrasive wear to adhesive wear.

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Section: Introductionmentioning

confidence: 99%

Effect of Cobalt on Microstructure and Wear Resistance of Ni-Based Alloy Coating Fabricated by Laser Cladding

Wang

Chang

Liu

et al. 2017

Metals

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“…However, compared to PI-coated copper wires, some tiny particles were observed on the surface of the PI-coated gilt molybdenum wires. This may have been caused by granular molybdenum from the gilt molybdenum wires [ 24 ].…”

Section: Resultsmentioning

confidence: 99%

Preparation and Evaluation of a Polyimide-Coated Ultrafine Gilt Molybdenum Wire and Its Knitted Mesh Used for Electromagnetic Reflectors

Shao

Chen

et al. 2017

Polymers

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Abstract:In this work, polyimide (PI) was coated onto an ultrafine gilt molybdenum wire in order to protect the gilt surface and prepare an electrically stable wire mesh material which can be widely used in space. The surface of the PI-coated gilt molybdenum wires was characterized using FTIR, SEM, and EDS. Factors such as temperature stability of the PI coating, mechanical properties of the PI-coated gilt molybdenum wires, contact resistance stability, and electromagnetic microwave reflectivity of the their knitted meshes were also investigated. The results indicate that the PI coating conformed uniformly to the surface of the gilt molybdenum wires. The prepared PI coating exhibited excellent temperature stability in the −196 to 300 • C range and could efficiently protect the gilt surface and improve the stability of contact resistance, while the reflection of its wire meshes showed only a slight decrease of 1.4% with the PI coating thickness of 3 µm for electromagnetic microwaves in the S band.

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“…where each chemical element symbol represents the corresponding weight percentage content (wt%). By calculating the formulas (1) and 2 Figure 2a, the higher Cr eq value, the more primary phases ferrite (F) and austenite (A). The solidification process could be described as followings: Once the primary phase δ ferrite was formed, the Cr and other F stabilizers were continuously consumed.…”

Section: Phase Analysismentioning

confidence: 99%

“…Over the past several decades, the laser cladding technique has received much attention in academic research and industrial applications because of its inherent merits, such as metallurgical bonding, low dilution ratio, small heat-affected zone, accurate process control, and high efficiency [1,2]. It is well-known that Fe-based laser cladding coatings have exhibited many advantages including its low cost, closing to the composition of the substrate and acceptable compatibility.…”

Section: Introductionmentioning

confidence: 99%

Influence of Vanadium Microalloying on Microstructure and Property of Laser-Cladded Martensitic Stainless Steel Coating

Zhu

et al. 2020

Materials

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Martensitic stainless steel (MSS) coatings with different vanadium (V) contents (0–1.0 wt%) by microalloying have been successfully fabricated utilizing a unique laser cladding technique. The microstructure and properties of the resulting MSS coatings, with and without element V addition, have been carefully investigated by various advanced techniques, including XRD, SEM, TEM, microhardness tester, universal material testing machine, and electrochemical workstation. It was found that the V-free coating was mainly composed of martensite (M) and ferrite (F), trace M23C6 and M2N, while the V-bearing coatings consisted of M, F, M23C6, and VN nano-precipitates, and their number density increased with the increase of V content. The V microalloying can produce a significant impact on the mechanical properties of the resulting MSS laser-cladded specimens. As the V content increased, the elongation of the specimen increased, while the tensile strength and microhardness increased firstly and then decreased. Specifically, the striking comprehensive performance can be optimized by microalloying 0.5 wt% V in the MSS coating, with microhardness, tensile strength, yield strength, and elongation of 500.1 HV, 1756 MPa, 1375 MPa, and 11.9%, respectively. However, the corrosion resistance of the specimens decreased successively with increasing V content. The microstructure mechanisms accounting for the property changes have been discussed in detail.

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Effect of Mo on Microstructures and Wear Properties of In Situ Synthesized Ti(C,N)/Ni-Based Composite Coatings by Laser Cladding

Cited by 35 publications

References 25 publications

Effect of Cobalt on Microstructure and Wear Resistance of Ni-Based Alloy Coating Fabricated by Laser Cladding

Effect of Cobalt on Microstructure and Wear Resistance of Ni-Based Alloy Coating Fabricated by Laser Cladding

Preparation and Evaluation of a Polyimide-Coated Ultrafine Gilt Molybdenum Wire and Its Knitted Mesh Used for Electromagnetic Reflectors

Influence of Vanadium Microalloying on Microstructure and Property of Laser-Cladded Martensitic Stainless Steel Coating

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