Effect of magnetic field on the microstructure and wear properties of TiB2/metal composite layers synthesized in situ by laser cladding on Ti–6Al–4V alloy

Qi, Kang; Yang, Yong; Liang, Wanxu; Jin, Kang; Li, Xiong

doi:10.1016/j.ceramint.2021.07.114

Cited by 22 publications

(9 citation statements)

References 32 publications

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“…From figure 15(a), it can be seen that part of the hard phase falls off during the friction process. Under the action of wear loads, grooves are formed in the friction sub and friction surface, which is an obvious characteristic of abrasive wear [28]. As shown in figures 15(b)-(d), as the wear progresses, a large amount of wear debris is generated and adheres to the wear surface, resulting in adhesive wear.…”

Section: Microhardness Friction and Wear Propertiesmentioning

confidence: 99%

“…The Mamdani fuzzy rules are used to define the fuzzy rule library according to the multi-parameter and multi-response characteristics of the optimization experiment, as shown in table 1. The center of gravity method has the advantage of smooth output inference control, even if the corresponding input signal changes slightly, the output will also change [28]. Therefore, the gravity center method is used for de-fuzzification to obtain the accurate value of the final grey-fuzzy relational grade (GFRG).…”

Section: A Multi-parameter Optimization Based On Grey-fuzzy Taguchi A...mentioning

confidence: 99%

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Multi-objective optimization of process parameters of laser cladding 15-5PH alloy powder based on gray-fuzzy taguchi approach

Zhou

et al. 2023

Eng. Res. Express

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Laser cladding is a new surface treatment technology that is widely used for surface modification of metal parts, and the high quality of the surface geometry of the cladding layer can save a lot of resources for the company. To obtain high quality of the clad layer, the L25 Taguchi experiment of laser cladding process parameters was designed to laser-clad a single 15-5PH layer on the surface of 45# steel; the effect of process parameters on the surface morphology and dilution rate of the coating was determined by ANOVA; the optimal combination of process parameters was obtained by combining gray correlation and fuzzy inference system method. The ANOVA results show that the scanning speed among the laser cladding process parameters plays a key role in obtaining the best superposition of the four geometrical features of the cladding layer simultaneously; With the optimization objectives of larger clad width and height, smaller clad depth, and 30% dilution rate, the optimal combination of process parameters, (P: 600W, V: 500mm/min, F: 1.3r/min), obtained based on the Gray-fuzzy Taguchi Approach, was compared and analyzed to find a significant improvement in the geometric quality characteristics of the optimized clad layer. The analysis of microstructure, physical phase, hardness, wear resistance and corrosion resistance showed that the 15-5PH clad layer was able to effectively enhance the surface properties of the 12Cr13 substrate. The optimization method proposed in this study can solve the problem of parameter optimization in the industrial multi-parameter and multi-response processes.

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Section: Microhardness Friction and Wear Propertiesmentioning

confidence: 99%

Section: A Multi-parameter Optimization Based On Grey-fuzzy Taguchi A...mentioning

confidence: 99%

Multi-objective optimization of process parameters of laser cladding 15-5PH alloy powder based on gray-fuzzy taguchi approach

Zhou

et al. 2023

Eng. Res. Express

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“…The reinforcing phases in the coatings of metal matrix composites should generally have high strength, high melting point, good corrosion resistance, impact resistance, wear resistance, even antifouling performance [15], and match the physical properties of the base metal. Currently used in metal-based materials to enhance the phase are mainly carbides, borides, oxides and nitrides [5,[16][17][18][19]. Li et al [20] prepared TiC Ni-based composite coatings on the surface of carbon steel to study the effect of TiC content (10%, 20% and 30%) in Ni-based composite on the microstructure and properties.…”

Section: Introductionmentioning

confidence: 99%

Microstructure and properties of plasma cladding Ni-based alloy coated on 40Cr Surface

Xun,

Liu,

Pan

et al. 2023

Surf. Topogr.: Metrol. Prop.

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Three Ni-based alloys (Ni60, Ni65, Ni60W) were selected to be coated on the surface of 40Cr and 20 steel. The microstructure, phase composition and elemental distribution of the coatings were characterised respectively to discuss the effects of different substrates, cladding materials, and preparing processes. The corrosion and thermal fatigue behaviour of the coatings were investigated. The results show that the coatings prepared by plasma cladding have a dense microstructure with few defects and a white bright band of a certain thickness was formed between the coating and the substrate. The white bright band between the coating prepared by flame spraying and the substrate was not obvious. The main phase compositions of the coatings are Cr23C6, Cr7C3, Ni2.9Cr0.7Fe0.36 and FeNi3 phases, with the W2C phase also present in the Ni60W coating. The heat-affected zone (HAZ) of the coating is influenced by the coating preparing processes, substrate material and process state of substrates: the size of the HAZ of the plasma cladded coating is smaller than that of the flame sprayed coating, the HAZ of the 40Cr substrate is smaller than that of the 20 steel, and the HAZ of the tempered 40Cr substrate is smaller than that of the annealed 40Cr substrate. The Ni-based alloy coating can effectively improve the surface hardness of the substrate. The Ni65 alloy powder is the most effective (HV0.5992), followed by the Ni60W alloy powder (HV0.5798) and finally the Ni60 alloy powder (HV0.5712). The Ni65 alloy coating has the relatively best thermal fatigue properties, followed by the Ni60W alloy coating and the Ni60 alloy coating is the relatively worst. At the same time, the corrosion resistance of different Ni-based alloy coatings is consistent with the thermal fatigue properties of the coatings.

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“…For the past few years, with further study into the LC process, researchers have found that the combination of the assisting laser processing process with laser cladding can well enhance the forming quality of the composite coating. Qi et al [ 20 ] used the magnetic-field-assisted LC to create a TiB2/metal composite material on a titanium alloy’s substrate. They believed that the magnetic field could have a mixing effect on the molten pool, thus refining the TiB2/metal composite coatings.…”

Section: Introductionmentioning

confidence: 99%

Effect of Preheating Temperature on Geometry and Mechanical Properties of Laser Cladding-Based Stellite 6/WC Coating

Shi

Xie

et al. 2022

Materials

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The effect of 60Si2Mn substrate preheating on the forming quality and mechanical properties of cobalt-based tungsten carbide composite coating was investigated. Substrate preheating was divided into four classes (room temperature, 150 °C, 250 °C, and 350 °C). The morphology, microstructure, and distribution of elements of the coating were analyzed using a two-color laser handheld 3D scanner, a scanning electron microscope (SEM), and an energy dispersive X-ray spectrometer (EDX), respectively. The hardness and wear properties of the cladding layer were characterized through a microhardness tester and a friction wear experiment. The research results show that the substrate preheating temperature is directly proportional to the height of the composite coating. The solidification characteristics of the Stellite 6/WC cladding layer structure are not obviously changed at substrate preheating temperatures of room temperature, 150 °C, and 250 °C. The solidified structure is even more complex at a substrate preheating temperature of 350 °C. At this moment, the microstructure of the cladding layer is mainly various blocky, petaloid, and flower-like precipitates. The hardness and wear properties of the cladding layer are optimal at a substrate preheating temperature of 350 °C in terms of mechanical properties.

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Effect of magnetic field on the microstructure and wear properties of TiB2/metal composite layers synthesized in situ by laser cladding on Ti–6Al–4V alloy

Cited by 22 publications

References 32 publications

Multi-objective optimization of process parameters of laser cladding 15-5PH alloy powder based on gray-fuzzy taguchi approach

Multi-objective optimization of process parameters of laser cladding 15-5PH alloy powder based on gray-fuzzy taguchi approach

Microstructure and properties of plasma cladding Ni-based alloy coated on 40Cr Surface

Effect of Preheating Temperature on Geometry and Mechanical Properties of Laser Cladding-Based Stellite 6/WC Coating

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