In-situ Forming Composite Coating by Laser Cladding C/B<sub>4</sub>C

Zhang, H. X.; Yu, Huijun; Chen, C. Z.

doi:10.1080/10426914.2014.994772

Cited by 23 publications

(5 citation statements)

References 14 publications

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“…In the open literature, Tian et al 22 when silicon and graphite were added as additives in laser cladding produced on Ti–6Al–4V, an enhancement in wear resistance to about 5 times and reduction in friction coefficient 0.5 to 0.37 is realized. Zhang et al 23 prepared in situ laser cladding comprising of TiC, TiN, TiB and TiB 2 phases by the using powder composition of B 4 C and 40–50% graphite. With graphite in excess, a decrease in wear to about 3 to 5 times was seen.…”

Section: Results Analysis and Discussionmentioning

confidence: 99%

Mechanical and tribological performance of a hybrid MMC coating deposited on Al–17Si piston alloy by laser composite surfacing technique

et al. 2018

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Laser composite surfacing (LCS) is a photon driven manufacturing technology that can be utilized for depositing hybrid metal matrix composite coatings (HMMC) on softer Ti/Al/Mg alloys to enhance their tribo-mechanical properties. LCS offers the advantages of higher directionality, localized microstructural refinement and higher metallurgical bonding between coating and substrate. The current research presents the tribo-mechanical evaluation and characterization of solid lubricant based Ni-WC coatings deposited by LCS on Al-Si piston alloy by varying the concentration of graphite between 5-to-15-weight percentage. The tribological behavior of LCS samples was investigated using a ball-on-plate tribometer.Results indicate that the surface hardness, wear rate and friction coefficient of the Al-Si hypereutectic piston alloy were improved after LCS of graphite based HMMC coatings. The maximum surface hardness of 781H v was acquired for the Ni-WC coating containing 5 wt% graphite. The friction coefficient of Al-Si under dry sliding conditions was reduced from 0.47 to 0.21. The reduction in the friction coefficient was attributed to the formation of a shearable transfer layer, which prevented delamination and reduced adhesion, abrasion and fatigue cracking.

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Section: Results Analysis and Discussionmentioning

confidence: 99%

Mechanical and tribological performance of a hybrid MMC coating deposited on Al–17Si piston alloy by laser composite surfacing technique

et al. 2018

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“…An enhancement of surface self-lubricating property is required to introduce titanium alloy in abrasion, high impact conditions, and wear environment. In this regard, the low coefficient of friction (COF) of WS 2 makes it a widely used solid lubrication coating, which can be performed satisfactorily in high pressure and temperature [12][13][14][15][16]. However, pure powder WS 2 weakens the coating layer and causes poor performance [17].…”

Section: Introductionmentioning

confidence: 99%

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

Kumar

Mandal

et al. 2022

Surface Engineering

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The Ti6Al4V is widely used in harsh working conditions where wear and tear are the common phenomena. In order to enhance its performance and life, the laser cladding took place using Ti6Al4V:WS 2 : Ni as the reinforcement material. The influence of scanning speed on mechanical and tribological properties like hardness, wear resistance, and microstructure of the cladding parts is discussed. The dendritic, white, and grey phased fine microstructures are observed. The micro-hardness of the clad is increased up to four times (∼1170 HV 0.5 ) of the substrate material due to the formation of a hard Ni-Ti phase. The wear resistance of the clad is exhibited two times higher than that of the substrate. Also, the coefficient of friction is reduced to 0.25 as the adhesion wear mechanism becomes predominant over the abrasion.

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“…On account of TiB 2 and TiB ceramic particles, the micro-hardness of coating is 3 times that of substrate. Zhang et al [16] fabricated composite coating utilising C/B 4 C mixed powder by laser cladding. The coating, reinforced by TiC and TiB 2 , obtained high hardness which was about 4-5 times the substrate.…”

Section: Introductionmentioning

confidence: 99%

“…Zhang et al. [16] fabricated composite coating utilising C/B 4 C mixed powder by laser cladding. The coating, reinforced by TiC and TiB 2 , obtained high hardness which was about 4–5 times the substrate.…”

Section: Introductionmentioning

confidence: 99%

Laser cladding composite coating on mild steel using Ni–Cr–Ti–B₄C powder

Han

Xiao²,

Zhang³

et al. 2018

Surface Engineering

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The composite coating was fabricated by laser cladding on Q235 mild steel. The cross-section morphology, microstructure, phase, micro-hardness and wear resistance of the coating were investigated by scanning electron microscope, energy dispersive spectrometry, X-ray diffraction, Vickers micro-hardness tester and dry sliding wear testing machine, respectively. Results showed that composite coating was gained without cracks and bonded with substrate excellently because of the prominent metallurgical bonding. The composite coating was made up of Ni 3 Ti, Cr 2 Ti, Ni-Cr-Fe, TiB 2 and TiC. Ceramic reinforcements existed in coating with eutectic and independent structures. The micro-hardness of coating was about 5 times the substrate. Compared with substrate, the coating showed superior wear resistance.

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In-situ Forming Composite Coating by Laser Cladding C/B₄C

Cited by 23 publications

References 14 publications

Mechanical and tribological performance of a hybrid MMC coating deposited on Al–17Si piston alloy by laser composite surfacing technique

Mechanical and tribological performance of a hybrid MMC coating deposited on Al–17Si piston alloy by laser composite surfacing technique

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

Laser cladding composite coating on mild steel using Ni–Cr–Ti–B₄C powder

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In-situ Forming Composite Coating by Laser Cladding C/B4C

Cited by 23 publications

References 14 publications

Mechanical and tribological performance of a hybrid MMC coating deposited on Al–17Si piston alloy by laser composite surfacing technique

Mechanical and tribological performance of a hybrid MMC coating deposited on Al–17Si piston alloy by laser composite surfacing technique

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

Laser cladding composite coating on mild steel using Ni–Cr–Ti–B4C powder

Contact Info

Product

Resources

About

In-situ Forming Composite Coating by Laser Cladding C/B₄C

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

Laser cladding composite coating on mild steel using Ni–Cr–Ti–B₄C powder