Properties and High-Temperature Wear Behavior of Remelted NiCrBSi Coatings

Günen, Ali; Çürük, Ahmet

doi:10.1007/s11837-019-03950-6

JOM

2019

DOI: 10.1007/s11837-019-03950-6

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Properties and High-Temperature Wear Behavior of Remelted NiCrBSi Coatings

Ali Günen

Ahmet Çürük

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2022

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Cited by 10 publications

(1 citation statement)

References 39 publications

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“…Lately, ceramics like carbides (TiC, [16] SiC [17] ), nitrides (TiN, [18] BN [19] ) and oxides [20] were deposited on titanium alloys. Deposition of WC and NiCrBSi coatings is quite common by thermal spray, [21,22] however, such process suffers from various restrictions. In the study of Ali et al, [23] 60 pct WC + 40 pct NiCrBSi hard composite on a commercial Ti-6Al-4V (a + b) titanium alloy was performed by laser cladding.…”

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Novel Surface Topography and Microhardness Characterization of Laser Clad Layer on TC4 Titanium Alloy Using Laser-Induced Breakdown Spectroscopy and Machine Learning

Al-Sayed

Samad²,

Mohamed³

et al. 2022

Metall Mater Trans A

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This study was performed to characterize surface topography and microhardness of 40 wt pct NiCrBSiC-60 wt pct WC hard coating on TC4 titanium after coaxial laser cladding via Laser Induced Breakdown Spectroscopy (LIBS) and machine learning. The high content of the hard WC particles is accomplished to enhance the abrasion wear resistance of such alloy. Various powder feeding rates were carried out during laser cladding process. The energy-dispersive X-ray analysis assured that W content in the metal matrix notably increased from 26.19 to 53.49 pct while the Ti content decreased from about 15.16 to 0.46 pct for the clad layer processed at 20 and 60 g min−1, respectively. The LIBS measurements successfully estimated such elements’ concentration as well as the clad layers' topography indicating that the effect of material matrix is a crucial challenge. Therefore, canonical correlation analysis and Belsley collinearity diagnostics were established to identify the essential emission lines from the whole spectra. Then, an optimized adaptive boosted random forest classifier was developed for microhardness investigation, with accuracy, sensitivity, and F1 score values of 0.9667. The results, confirmed by the metallurgical study, clarified that most of the titanium and tungsten emission lines have a significant impact on the surface topography as well as the microhardness values. The misclassification was attributed to the matrix effect such that the samples processed at 40 and 60 g min−1 were comparable in microstructure and chemical characterization unlike the one processed at 20 g min−1. Vickers microhardness of the metal matrix coating increased with the increase in the powder feeding rate, which is assured by the quantitative classification model. Graphical Abstract

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Novel Surface Topography and Microhardness Characterization of Laser Clad Layer on TC4 Titanium Alloy Using Laser-Induced Breakdown Spectroscopy and Machine Learning

Al-Sayed

Samad²,

Mohamed³

et al. 2022

Metall Mater Trans A

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Structural Features of Protective Layers Based on Self-Fluxing Nickel Alloy, Niobium and Boron after Electron-Beam and Furnace-Chamber Treatments

2022

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Microstructure, Tribological, and Electrochemical Characterization of Hardfacing WC-Ni-Cr on AISI 1045 Carbon Steel Alloy

Tougherghi

Ahnia

Khenfer

et al. 2022

J. of Materi Eng and Perform

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Properties and High-Temperature Wear Behavior of Remelted NiCrBSi Coatings

Cited by 10 publications

References 39 publications

Novel Surface Topography and Microhardness Characterization of Laser Clad Layer on TC4 Titanium Alloy Using Laser-Induced Breakdown Spectroscopy and Machine Learning

Novel Surface Topography and Microhardness Characterization of Laser Clad Layer on TC4 Titanium Alloy Using Laser-Induced Breakdown Spectroscopy and Machine Learning

Structural Features of Protective Layers Based on Self-Fluxing Nickel Alloy, Niobium and Boron after Electron-Beam and Furnace-Chamber Treatments

Microstructure, Tribological, and Electrochemical Characterization of Hardfacing WC-Ni-Cr on AISI 1045 Carbon Steel Alloy

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