Microstructural and Thermal Characterization of 316L + WC Composite Coatings Obtained by Laser Cladding

Enrici, Tommaso Maurizi; Dedry, Olivier; Boschini, Frèdéric; Tchuindjang, Jérôme Tchoufack; Mertens, Anne

doi:10.1002/adem.202000291

Cited by 23 publications

(10 citation statements)

References 37 publications

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“…As for AISI 316 L stainless steel layers, it has been reported that the properties of the cladding layers were improved by compositing with SiC, TiC and titanium carbonitride [18][19][20]. As a matter of course, the WC particles composite for AISI 316 L stainless steel layers obtained by the laser cladding process also leads to improved mechanical properties, in particular, surface hardness and wear resistance [21][22][23]. During the heating of the laser cladding process, the WC particles decompose and solidify in the AISI 316 L steel matrix, and consequently, the steel matrix structure modifies to form carbide networks as a dendritic structure [21,22,24].…”

Section: Introductionmentioning

confidence: 99%

“…As a matter of course, the WC particles composite for AISI 316 L stainless steel layers obtained by the laser cladding process also leads to improved mechanical properties, in particular, surface hardness and wear resistance [21][22][23]. During the heating of the laser cladding process, the WC particles decompose and solidify in the AISI 316 L steel matrix, and consequently, the steel matrix structure modifies to form carbide networks as a dendritic structure [21,22,24]. In addition, WC, W 2 C phases, M 23 C 6 , and (Fe,W) 3 C complex carbide phases form, and tungsten and carbon elements solidify [25].…”

Section: Introductionmentioning

confidence: 99%

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Formation and Properties of Nitrocarburizing S-Phase on AISI 316L Stainless Steel-Based WC Composite Layers by Low-Temperature Plasma Nitriding

Adachi

Yamaguchi

Ueda

2021

Metals

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Stainless steel-based WC composite layers fabricated by a laser cladding technique, have strong mechanical strength. However, the wear resistance of WC composite layers is not sufficient for use in severe friction and wear environments, and the corrosion resistance is significantly reduced by the formation of secondary carbides. Low-temperature plasma nitriding and carburizing of austenitic stainless steels, treated at temperatures of less than 450 °C, can produce a supersaturated solid solution of nitrogen or carbon, known as the S-phase. The combined treatment of nitriding and carburizing can form a nitrocarburizing S-phase, which is characterized by a thick layer and superior cross-sectional hardness distribution. During the laser cladding process, free carbon was produced by the decomposition of WC particles. To achieve excellent wear and corrosion resistance, we attempted to use this free carbon to form a nitrocarburizing S-phase on AISI 316 L stainless steel-based WC composite layers by plasma nitriding alone. As a result, the thick nitrocarburizing S-phase was formed. The Vickers hardness of the S-phase ranged from 1200 to 1400 HV, and the hardness depth distribution became smoother. The corrosion resistance was also improved through increasing the pitting resistance equivalent numbers due to the nitrogen that dissolved in the AISI 316 L steel matrix.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Formation and Properties of Nitrocarburizing S-Phase on AISI 316L Stainless Steel-Based WC Composite Layers by Low-Temperature Plasma Nitriding

Adachi

Yamaguchi

Ueda

2021

Metals

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“…Reports are also available to develop metal matrix composite coating by laser cladding technique [16][17][18][19][20][21][22][23][24][25][26][27]. Tehrani et al [16] developed WC-Ni composite coating by electroless plating of WC on Ni and its laser melting using Nd:YAG laser.…”

Section: Introductionmentioning

confidence: 99%

Wear and corrosion behavior of nano carbide dispersed AISI304 stainless steel by laser surface processing

Chakraborty¹,

Madapana²,

Krishna³

et al. 2021

Surf. Topogr.: Metrol. Prop.

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In this study, dispersion of tungsten carbide on AISI 304 stainless steel substrate has been carried out by laser melting of the sand blasted substrate using 5 kW continuous wave (CW) Nd-YAG laser (with the beam diameter of 3 mm) with an output power ranging from 1.5 - 2 kW and scan speed varying from 12 to 16 mm/s and simultaneous feeding of premixed WC+Co in the ratio of 1:4 (with a flow rate of 10 mg/s). The microstructure of the composite zone is dendritic or cellular in morphology and consists of nano-tungsten carbide (both WC and W2C) and M23C6 precipitates. There is an enhancement in hardness from 220 VHN of the as-received substrate to 290 - 400 VHN. The wear resistance is improved significantly with a maximum enhancement observed in the sample processed with an applied power of 2 kW and a scan speed of 12 mm/s. The corrosion rate in a 3.56 wt.% NaCl solution is significantly reduced due to laser processing. However, there is a deterioration of pitting corrosion resistance (in terms of shifting of Epit towards active direction) for all the samples, except for the sample processed with an applied power of 2 kW and a scan speed of 12 mm/s.

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“…316L stainless steel is a typical low-carbon austenitic stainless steel with good mechanical properties and excellent corrosion resistance, which is widely used in aerospace, chemical, nuclear industry, and marine engineering [ 1 , 2 , 3 , 4 ]. However, due to its weak hardness and wear resistance, its application is greatly limited [ 2 ].…”

Section: Introductionmentioning

confidence: 99%

Microstructure and Wear Resistance of Multi-Layer Ni-Based Alloy Cladding Coating on 316L SS under Different Laser Power

Dai

Guo

et al. 2021

Materials

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We prepared three kinds of Ni based alloy cladding coatings on 316L stainless steel at different power levels. The microstructure of the cladding layer was observed and analyzed by XRD, metallographic microscope, and SEM. The hardness of the cladding layer was measured, and the wear resistance of it was tested by a friction instrument. The results show that the effect of laser cladding is good, and it has good metallurgical bonding with the substrate. Different microstructures such as dendritic and equiaxed grains can be observed in the cladding layer. With the increase in laser power, more equiaxed and columnar dendrites can be observed. The phase composition of the cladding layer is mainly composed of γ–Ni solid solution and some intermetallic compounds such as Ni3B, Cr5B3, and Ni17Si3. The results of EDS show that there are some differences in the distribution of C and Si between dendrites. The hardness of the cladding layer is about 600 HV0.2, which is about three times of the substrate (~200 HV0.2). Through the analysis of the wear morphology, the substrate wear is serious, there are serious shedding, mainly adhesive wear, and abrasive wear. However, the wear of the cladding layer is slight, which is abrasive wear, and there are some grooves on the surface.

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Microstructural and Thermal Characterization of 316L + WC Composite Coatings Obtained by Laser Cladding

Cited by 23 publications

References 37 publications

Formation and Properties of Nitrocarburizing S-Phase on AISI 316L Stainless Steel-Based WC Composite Layers by Low-Temperature Plasma Nitriding

Formation and Properties of Nitrocarburizing S-Phase on AISI 316L Stainless Steel-Based WC Composite Layers by Low-Temperature Plasma Nitriding

Wear and corrosion behavior of nano carbide dispersed AISI304 stainless steel by laser surface processing

Microstructure and Wear Resistance of Multi-Layer Ni-Based Alloy Cladding Coating on 316L SS under Different Laser Power

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