Ni–WS<sub>2</sub>–Ti–6Al–4V self-lubricating coating on TC4 alloy by laser cladding

Kumar, Shakti; Kumar, Monty; Mandal, Amitava; Das, Alok Kumar

doi:10.1080/02670844.2022.2086961

Cited by 8 publications

(4 citation statements)

References 32 publications

(38 reference statements)

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“…To solve the problem, solid lubricating phases are added to the cladding material to realize the selflubricating function which relieves the excessive wear by overload. Shakti et al [243] prepared a Ni-WS 2 -Ti-6Al-4V self-lubricating coating on a TC4 alloy and revealed that the lubricate phase WS 2 could be well dispersed in the cladding coating, which decreased the wear lost to half of the substrate and the friction coefficient to 0.25, because the adhesion wear became the predominant mechanism. Liu et al [244] prepared a TiN/WS 2 + hBN/NiCrBSi composite coating with WS 2 and TiS lubricant phases on a TC4 alloy, which realized the self-lubricating effect and ultra-high microhardness.…”

Section: Other Functional Coatingsmentioning

confidence: 99%

Research Progress of Laser Cladding on the Surface of Titanium and Its Alloys

Zhao

Xie

et al. 2023

Materials

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Titanium (Ti) and its alloys have been widely employed in aeronautical, petrochemical, and medical fields owing to their fascinating advantages in terms of their mechanical properties, corrosion resistance, biocompatibility, and so on. However, Ti and its alloys face many challenges, if they work in severe or more complex environments. The surface is always the origin of failure for Ti and its alloys in workpieces, which influences performance degradation and service life. To improve the properties and function, surface modification becomes the common process for Ti and its alloys. The present article reviews the technology and development of laser cladding on Ti and its alloys, according to the cladding technology, cladding materials, and coating function. Generally, the laser cladding parameters and auxiliary technology could influence the temperature distribution and elements diffusion in the molten pool, which basically determines the microstructure and properties. The matrix and reinforced phases play an important role in laser cladding coating, which can increase the hardness, strength, wear resistance, oxidation resistance, corrosion resistance, biocompatibility, and so on. However, the excessive addition of reinforced phases or particles can deteriorate the ductility, and thus the balance between functional properties and basic properties should be considered during the design of the chemical composition of laser cladding coatings. In addition, the interface including the phase interface, layer interface, and substrate interface plays an important role in microstructure stability, thermal stability, chemical stability, and mechanical reliability. Therefore, the substrate state, the chemical composition of the laser cladding coating and substrate, the processing parameters, and the interface comprise the critical factors which influence the microstructure and properties of the laser cladding coating prepared. How to systematically optimize the influencing factors and obtain well-balanced performance are long-term research issues.

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Section: Other Functional Coatingsmentioning

confidence: 99%

Research Progress of Laser Cladding on the Surface of Titanium and Its Alloys

Zhao

Xie

et al. 2023

Materials

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“…The method is widely adopted for the surface modification of bulk materials to obtain enhanced properties, i.e., tribological, mechanical, chemical, or biological [ 164 ]. Due to the use of high-energy beam lasers, LBMD technology has the ability to process materials irrespective of their hardness at high melting temperatures [ 165 ]. The LBMD process thus has the ability to conduct selective surface modification, which can hardly be achieved through SLM and SLS techniques [ 166 ].…”

Section: Different Metallic Coatings Through Additive Manufacturingmentioning

confidence: 99%

Metallic Coatings through Additive Manufacturing: A Review

Mohanty

Prashanth

2023

Materials

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Metallic additive manufacturing is expeditiously gaining attention in advanced industries for manufacturing intricate structures for customized applications. However, the inadequate surface quality has inspired the inception of metallic coatings through additive manufacturing methods. This work presents a brief review of the different genres of metallic coatings adapted by industries through additive manufacturing technologies. The methodologies are classified according to the type of allied energies used in the process, such as direct energy deposition, binder jetting, powder bed fusion, hot spray coatings, sheet lamination, etc. Each method is described in detail and supported by relevant literature. The paper also includes the needs, applications, and challenges involved in each process.

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“…Titanium and its alloy have been widely used in different industries including aerospace, manufacturing, marine, biomedical, automobile, chemical, etc., because of its high strength-to-weight ratio, non-toxicity, non-magnetic, and recyclable characteristics [1][2][3][4][5]. However, there are some limitations to using titanium alloy in harsh and extreme abrasion conditions because of its properties like poor shear strength, poor wear behavior, low hardness, etc.…”

Section: Introductionmentioning

confidence: 99%

Die-sink EDM texturing to fabricate hydrophilic and wear resistant surface

Kumar

Sharma

Jha

et al. 2023

Surface Engineering

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The present work emphasizes the fabrication of a series of V-groove channels utilizing electrical discharge machining using a pointed tungsten tool electrode. The prepared textured surface is tested for the shape of V-groove channel, wetting behavior, and tribological aspect. A decrease in shape error of V-groove channel is observed as the peak current increases from 4 A to 10 A due to an increase in discharge energy which functions as the melting or vaporizing of machined materials. The water contact angle decreases from 61.316 0 (untextured surface) to 49.567 0 (sample 4) showing an increase in hydrophilic behavior for the samples having nearly a V-groove-shaped channel. Further, there is a decrease in COF value from 0.48 (untextured surface) to 0.23 (sample 4). The decreased COF value attributes to the formation of metallic bridges in the V-groove channel. The prime wear mechanism for an untextured surface is found to be ploughing whereas adhesion with ploughing is dominant for textured surfaces.

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Ni–WS₂–Ti–6Al–4V self-lubricating coating on TC4 alloy by laser cladding

Cited by 8 publications

References 32 publications

Research Progress of Laser Cladding on the Surface of Titanium and Its Alloys

Research Progress of Laser Cladding on the Surface of Titanium and Its Alloys

Metallic Coatings through Additive Manufacturing: A Review

Die-sink EDM texturing to fabricate hydrophilic and wear resistant surface

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Ni–WS2–Ti–6Al–4V self-lubricating coating on TC4 alloy by laser cladding

Cited by 8 publications

References 32 publications

Research Progress of Laser Cladding on the Surface of Titanium and Its Alloys

Research Progress of Laser Cladding on the Surface of Titanium and Its Alloys

Metallic Coatings through Additive Manufacturing: A Review

Die-sink EDM texturing to fabricate hydrophilic and wear resistant surface

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Product

Resources

About

Ni–WS₂–Ti–6Al–4V self-lubricating coating on TC4 alloy by laser cladding