Effect of laser post-treatment on Al2O3-TiB2-TiN composite coating with free hBN

Chatterjee, Satyajit; Majumdar, Jyotsna Dutta; Shariff, S.M.; Padmanabham, G.; Choudhury, Asimava Roy

doi:10.1007/s00170-011-3739-y

Cited by 13 publications

(3 citation statements)

References 28 publications

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“…According to literature: Target: T i (T i =T h for samples p 2 -p 8 and T i = T s for samples p 1 , p 9 -p 11 ) [11,[14][15][16][17][18][19][20][21][22][23].…”

Section: Methodsmentioning

confidence: 99%

A new approach to study of TiB2-TiN-SiC based tribological coatings with solid lubrication

et al. 2021

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An in-situ TiB 2 -TiN-SiC composite coating is deposited over steel substrate through laser treatment of a preplaced mixture of TiO 2 , SiO 2 , hBN and graphite powders. Coating's characteristics change significantly on individual additions of hBN and SiC to other constituents. This study focuses on checking the benefits of simultaneous addition of hBN and SiC on coating's properties using K-nearest neighbor (K-NN) methodology. Here, specific amounts of both hBN and SiC are added simultaneously in the precursor mixture (as found suitable through K-NN methodology) to study coating's characteristics in a situation where advantages of hBN as solid lubricant can be obtained without compromising the various mechanical properties. Characteristics of the coating developed with that composition of precursor mixture ensuring simultaneous addition of hBN and SiC is thoroughly studied through several microstructural, tribological and mechanical characterizations. On evaluation of tribological properties of the coating at varying loads, presence of both hBN and SiC shows interesting results. A coating with stoichiometric proportion of precursor mixture is also deposited and characterized for comparison.

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“…According to literature: Target: T i (T i =T h for samples p 2 -p 8 and T i = T s for samples p 1 , p 9 -p 11 ) [11,[14][15][16][17][18][19][20][21][22][23].…”

Section: Methodsmentioning

confidence: 99%

A new approach to study of TiB2-TiN-SiC based tribological coatings with solid lubrication

et al. 2021

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“…Therefore, tailoring properties using a multiphase system with component materials having the contrary properties is a promising strategy for designing the novel anti-wear coatings with low frictional resistance. In this regard, the Ti-B-N system is interesting because of the coexistence of hard titanium diboride (TiB 2 ) and titanium nitride (TiN) with soft hexagonal boron nitride (h-BN) as a lubricant [12][13][14]. He et al [12] reported that the appropriate integration of TiB 2 and TiN in the soft lubricating h-BN matrix could bring about the significant improvements in anti-wear and low friction coefficients of Ti-B-N coatings.…”

Section: Introductionmentioning

confidence: 99%

In situ synthesis of Fe-based alloy clad coatings containing TiB2–TiN–(h-BN)

Jiang

Wang

Ren

et al. 2015

Int J Miner Metall Mater

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Fe-based alloy coatings containing TiB 2 -TiN-(h-BN) were synthesized in situ on Q235 steel substrates by a plasma cladding process using the powders of Fe901 alloy, Ti, and h-BN as raw materials. The effects of Ti/h-BN mass ratio on interfacial bonds between the coating and substrate along with the microstructures and microhardnesses of the coatings were investigated. The results show that the Ti/h-BN mass ratio is a vital factor in the formation of the coatings. Free h-BN can be introduced into the coatings by adding an excess amount of h-BN into the precursor. Decreases in the Ti/h-BN mass ratio improve the microstructural uniformity and compactness and enhance the interfacial bonds of the coatings. At a Ti/h-BN mass ratio of 10/20, the coating is free of cracks and micropores, and mainly consists of Fe−Cr, Fe 3 B, TiB 2 , TiN, Ti 2 N, TiB, FeN, FeB, Fe 2 B, and h-BN phases. Its average microhardness in the zone between 0.1-2.8 mm from the coating surface is about Hv 0.2 551.5.

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“…Studies have shown that such a combined method makes it possible to substantially increase the productivity of the process of electrolytic chromium build-up in comparison with a stationary one [9], improve the uniformity [10] and physico-mechanical properties of coatings [11][12][13]. The productivity of the process is enhanced by the possibility of a significant increase in the permissible current densities due to galvanomechanic activation [14,15] and application of the rotation of the part [16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Effect of Abrasive Tools in Galvanomechanical Treatment on the Roughness of the Deposited Chromium Layer

Zherebtcov

Груба

Smolyakova

2018

SSP

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The article deals with the method of obtaining a hard chromium coating on details of the "body of rotation" type with the use of an abrasive tool. The influence of the composition and hardness of the elastic abrasive tool on the results of galvanomechanical chromium plating of rotating cylindrical parts has been studied. Binder compositions for an abrasive tool used to improve the roughness of the deposited chromium layer have been developed. A series of experimental studies has been carried out with chromium plating of steel cylindrical parts with simultaneous abrasive processing. Beforehand, an abrasive tool with previously developed binder formulations was manufactured. The obtained results of the influence of the characteristics of the abrasive tool and its pressing force on the chromium-plated part on the quality of the precipitated chromium made it possible to determine the optimum modes for obtaining a coating of the required thickness. Also, a suitable abrasive tool has been chosen to obtain a coating of proper quality.

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Effect of laser post-treatment on Al2O3-TiB2-TiN composite coating with free hBN

Cited by 13 publications

References 28 publications

A new approach to study of TiB2-TiN-SiC based tribological coatings with solid lubrication

A new approach to study of TiB2-TiN-SiC based tribological coatings with solid lubrication

In situ synthesis of Fe-based alloy clad coatings containing TiB2–TiN–(h-BN)

Effect of Abrasive Tools in Galvanomechanical Treatment on the Roughness of the Deposited Chromium Layer

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