Microstructure and Wear Resistance of Laser Cladding of Fe-Based Alloy Coatings in Different Areas of Cladding Layer

Bai, Qiaofeng; Ouyang, Changyao; Zhao, Chunjiang; Han, Binhui; Liu, Yingliang

doi:10.3390/ma14112839

Cited by 32 publications

(8 citation statements)

References 18 publications

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“…It can be concluded that the main wear mechanism is adhesive and abrasive wear. Similar conclusions were reported by Q. Bai et al [ 36 ].…”

Section: Resultssupporting

confidence: 92%

“…At the beginning of the wear test, the Cof fluctuates because the contact between the coating and counter-body (the WC ball) is small with a large contact stress leading to an increased Cof. After that, the contact stress continues to decrease and the Cof tends to stabilize [ 36 ]. It can be also seen that all the coatings present uneven curves which is attributed to an uneven carbide distribution throughout the coatings.…”

Section: Resultsmentioning

confidence: 99%

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Influence of the Laser Cladding Parameters on the Morphology, Wear and Corrosion Resistance of WC-Co/NiCrBSi Composite Coatings

et al. 2021

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To enhance the sliding wear and corrosion behavior of steels with low carbon content, cermet composite coatings are usually deposited on their surface by various deposition processes. Laser cladding, compared to other deposition techniques such as electroplating, arc welding, and thermal spraying, has numerous advantages to produce such protective coatings. The paper presents the optimization of laser cladding deposition speed versus energy density in order to obtain WC-Co/NiCrBSi coatings with Ni-Al addition free of defects and reduced porosity deposited on low carbon steel substrate. The microstructure and chemical composition were investigated by SEM combined with EDX analysis while XRD was performed in order to examinate the phases within the coatings. In order to investigate the cladding speed influence on the coatings, hardness measurements, POD (pin on disk) wear tests and corrosion tests in 3.5% NaCl solution were carried out. The results showed that an optimal cladding speed has a crucial impact on the microstructure, composition, and hardness. It was found out that optimizing the cladding deposition speed proved to be effective in enhancing the sliding wear resistance and corrosion behavior by controlling the iron content within the coatings.

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“…It can be concluded that the main wear mechanism is adhesive and abrasive wear. Similar conclusions were reported by Q. Bai et al [ 36 ].…”

Section: Resultssupporting

confidence: 92%

Section: Resultsmentioning

confidence: 99%

Influence of the Laser Cladding Parameters on the Morphology, Wear and Corrosion Resistance of WC-Co/NiCrBSi Composite Coatings

et al. 2021

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“…However, the production of hazardous hexavalent chromium compounds during electroplating has encouraged industry to employ thermal spray coatings rather than hard chrome plating [ 54 ]. Laser cladding is also being researched to repair the surface of moulds [ 55 ]. Thin solid films have been implemented to protect SENs and mould linings [ 56 ], but these have limited effectiveness under the highly aggressive industrial conditions.…”

Section: Thermal Spray Applications In Iron and Steel Industrymentioning

confidence: 99%

Applications and Developments of Thermal Spray Coatings for the Iron and Steel Industry

et al. 2023

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The steel making processes involves extreme and harsh operating conditions; hence, the production hardware is exposed to degradation mechanisms under high temperature oxidation, erosion, wear, impact, and corrosive environments. These adverse factors affect the product quality and efficiency of the steel making industry, which contributes to production downtime and maintenance costs. Thermal spray technologies that circumvent surface degradation mechanisms are also attractive for their environmental safety, effectiveness and ease of use. The need of thermal spray coatings and advancement in terms of materials and spray processes are reviewed in this article. Application and development of thermal spray coatings for steel making hardware from the molten metal processing stages such as electric arc and basic oxygen furnaces, through to continuous casting, annealing, and the galvanizing line; to the final shaping process such as cold and hot rolling of the steel strips are highlighted. Specifically, thermal spray feedstock materials and processes that have potential to replace hazardous hard chrome plating are discussed. It is projected that novel coating solutions will be incorporated as awareness and acceptance of thermal spray technology grows in the steel making sectors, which will improve the productivity of the industry.

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“…For the AlxCo 1.5 CrFeNi 1.5 Tiy high-entropy alloys investigated by Chuang et al [22], Co 1.5 CrFeNi 1.5 Ti and Al 0.2 Co 1.5 CrFeNi 1.5 Ti alloys are found to have better wear resistance at least two times than that of conventional wear-resistant steels SUJ2 and SKH51with similar hardness. HEAs coatings prepared by laser cladding characterized as excellent wear resistance and bonding strength have got considerable attention in recent years [23,24]. Juan et al [25].…”

Section: Introductionmentioning

confidence: 99%

Effect of Mo on microstructure and sliding wear performance of CoCrFeNiMox high entropy alloy coatings by laser cladding

Chang,

Liu,

Xia

et al. 2023

Mater. Res. Express

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The CoCrFeNiMox (x = 0, 0.5, 1, 1.5 in molar ratio) high-entropy alloys (HEAs) coating were prepared on AISI1045 steel by laser cladding. The microstructure, hardness and tribological properties were investigated through x-ray diffraction, scanning electron microscopy (SEM), microhardness tester and reciprocating tribometer. The result shows that the coating is metallurgically bonded to the substrate and exhibits columnar and equiaxed grains microstructure consisted of main face-centered cubic (FCC) solid solution and few body-centered cubic (BCC) struture when x≤ 1.0. The (Fe, Cr, Mo)-riched σ phase shows up in the CoCrFeNiMo1.5 FCC matrix due to excess Mo addition. CoCrFeNiMox HEA coatings shows an obvious increase of surface hardness from 261 HV0.2 to 793 HV0.2 by increasing the Mo content to 1.5 in the molar ratio, and exhibited the most excellent wear resistance among all the compositions designed in this work. The wear resistance of the CoCrFeNiMo1.5 alloy coating is about 2.2 times higher than that of the coating without Mo. The wear mechanism changes with increasing Mo content, though abrasive wear is a common mechanism, more adhesive wear occurred at low Mo content but few oxidation and fatigue wear occured at high Mo content.

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Microstructure and Wear Resistance of Laser Cladding of Fe-Based Alloy Coatings in Different Areas of Cladding Layer

Cited by 32 publications

References 18 publications

Influence of the Laser Cladding Parameters on the Morphology, Wear and Corrosion Resistance of WC-Co/NiCrBSi Composite Coatings

Influence of the Laser Cladding Parameters on the Morphology, Wear and Corrosion Resistance of WC-Co/NiCrBSi Composite Coatings

Applications and Developments of Thermal Spray Coatings for the Iron and Steel Industry

Effect of Mo on microstructure and sliding wear performance of CoCrFeNiMox high entropy alloy coatings by laser cladding

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