Effects of the content of MoS2 on microstructural evolution and wear behaviors of the laser-clad coatings

Qu, C.C.; Li, J.; Juan, Yongfei; Shao, J.Z.; Sheng, Rui; Bai, L.L.; Chen, J.L.

doi:10.1016/j.surfcoat.2018.10.100

Cited by 64 publications

(18 citation statements)

References 22 publications

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“…Qu et al 105 investigated the effect of MoS 2 content on the self-lubricating laser-clad coating of NiCrBSi deposited on Ti-6Al-4V. The 6 wt% of MoS 2 was found as the optimal value of MoS 2 content.…”

Section: Effect Of Nonferrous Alloy As Cladding Materialsmentioning

confidence: 99%

State-of-the-art review on laser cladding process as an in-situ repair technique

Raj

Maity

Das

2021

Proceedings of the Institution of Mechanical Engineers, Part E:

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The present work reviews the laser cladding process as a repairing technique and the conventional repairing techniques and different heat source models. In this review work, the authors have tried to address the various traditional methods studied for repairing and surface modification. The dominantly used heat source model for numerical modelling of the repairing techniques and the mechanism of the laser cladding process, along with its advantages over the conventional repairing techniques, is also reviewed. This paper also focuses on the predominantly used laser of high power for the cladding process and the effect of process parameters on the quality of the clad layer. The different materials used as clad materials for repairing purposes during the laser cladding process have also been discussed briefly. In this paper, the authors have surveyed literature from different regions of the globe and considered the literature since 1969. This review discusses the various conventional repairing techniques used for repairing, heat source model, process parameters, and different materials used in the laser cladding process. The authors have also briefed the advantages, disadvantages, and application in each of the sections. The use of laser cladding for in-situ repairing process, development of a precise model, use of low-power laser, and application of laser cladding for actual engineering components was also considered in future research work.

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Section: Effect Of Nonferrous Alloy As Cladding Materialsmentioning

confidence: 99%

State-of-the-art review on laser cladding process as an in-situ repair technique

Raj

Maity

Das

2021

Proceedings of the Institution of Mechanical Engineers, Part E:

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“…However, using solid lubricant enhances the wear resistance without making the composite very brittle. Molybdenum disulfide is an excellent choice as reinforcement in composites due to its high thermal stability and lubricating property [36][37][38][39][40][41][42]. The presence of molybdenum disulfide resulted in reduction of wear debris and micro-cracks in the worn surface of aluminum 2219-molybdenum disulfide composite [40].…”

Section: Introductionmentioning

confidence: 99%

Characterization of novel molybdenum disulfide and cerium dioxide reinforced hybrid aluminum matrix composites fabricated by friction stir processing

Maji

Ghosh

Nath

et al. 2022

Materialwissenschaft Werkst

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Aluminum matrix composites are widely used for making structural components in the aerospace and automobile industries. In order to sustain the operational demand, excellent anti-wear and corrosion resistance properties are required in the composites. To achieve this, molybdenum disulfide and cerium dioxide reinforced hybrid aluminum-based composites are fabricated by friction stir processing at different rotational speed and number of passes. Due to grain refinement and better particle distribution at high rotational speed and 2 pass, tensile strength and microhardness improves by sacrificing ductility. However, deterioration of mechanical properties than the as-received alloy is evident in all the composites due to dissolvement of strengthening precipitates. With increasing tool rotational speed, severe adhesion type of wear shifts to abrasion wear and the wear resistance also improves. All the composites show similar corrosion behavior as the unprocessed alloy. However, the corrosion parameters such as corrosion potential and corrosion current density were influenced by processing conditions. The composite produced with 1500 min À 1 and 2 pass exhibits highest wear and corrosion resistance.

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“…Among the self-lubricating materials, MoS 2 is usually used as a lubricating phase for coatings. [2][3][4] As an advanced coating fabrication method, laser cladding (LC) has widely applied in the preparation of friction-reducing coatings. 5 When the MoS 2 is added to Cu10Al coating, the obtained coating is mainly composed of CuAl solid solution and MoS 2 phases, in which the MoS 2 plays a role of self-lubrication phase.…”

Section: Introductionmentioning

confidence: 99%

Effect of CeO₂ addition on microstructure and tribological characteristics of laser cladded Cu10Al–MoS₂ coating under oil lubrication

Lifan

Dejun

2021

Proceedings of the Institution of Mechanical Engineers, Part L:

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In order to improve the friction and wear properties of Cu10Al–MoS2 coating, the addition of CeO2 is one of the present research hot spots. In this work, Cu10Al–MoS2 coatings with different CeO2 mass fractions were successfully fabricated on Q235 steel using a laser cladding. The microstructure and phase compositions of obtained coatings were analyzed using an ultra-depth of field microscope and X-ray diffraction, respectively. The friction-wear test was carried out under oil lubrication using a ball-on-disk wear tester, and the effects of CeO2 mass fraction on the microstructure, hardness, and friction-wear properties were studied, and the wear mechanism was also discussed. The results show that the laser cladded Cu10Al–MoS2 coatings with the different CeO2 mass fractions were mainly composed of Cu9Al4, Cu, AlFe3, Ni, MoS2, and CeO2 phases. The Vickers-hardness (HV) of Cu10Al–8MoS2–3CeO2, Cu10Al–8MoS2–6CeO2, and Cu10Al–8MoS2–9CeO2 coatings was 418, 445, and 457 HV0.3, respectively, which indicates an increase in hardness with the increase of CeO2 mass fraction. The average coefficients of friction (COF) and wear rates decrease with the increase of CeO2 mass fraction, presenting the outstanding friction reduction and wear resistance performances. The wear mechanism of Cu10Al–MoS2 coatings is changed from abrasive wear with slight fatigue wear to abrasive wear with the increase of CeO2 mass fraction.

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Effects of the content of MoS2 on microstructural evolution and wear behaviors of the laser-clad coatings

Cited by 64 publications

References 22 publications

State-of-the-art review on laser cladding process as an in-situ repair technique

State-of-the-art review on laser cladding process as an in-situ repair technique

Characterization of novel molybdenum disulfide and cerium dioxide reinforced hybrid aluminum matrix composites fabricated by friction stir processing

Effect of CeO₂ addition on microstructure and tribological characteristics of laser cladded Cu10Al–MoS₂ coating under oil lubrication

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Effects of the content of MoS2 on microstructural evolution and wear behaviors of the laser-clad coatings

Cited by 64 publications

References 22 publications

State-of-the-art review on laser cladding process as an in-situ repair technique

State-of-the-art review on laser cladding process as an in-situ repair technique

Characterization of novel molybdenum disulfide and cerium dioxide reinforced hybrid aluminum matrix composites fabricated by friction stir processing

Effect of CeO2 addition on microstructure and tribological characteristics of laser cladded Cu10Al–MoS2 coating under oil lubrication

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Effect of CeO₂ addition on microstructure and tribological characteristics of laser cladded Cu10Al–MoS₂ coating under oil lubrication