Microstructure Analysis of Tungsten Carbide Hardfacing on Carbon Steel Blade

Nagentrau, M.; Tobi, Abdul Latif Mohd; Kamdi, Zakiah; Ismaïl, Mohamed; Sambu, Mathan

doi:10.1088/1757-899x/203/1/012014

Cited by 6 publications

(5 citation statements)

References 14 publications

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“…Where: W -wear rate is the total volume of wear per unit length; K-is a dimensionless constant; P-is the total normal load; L-is the sliding distance; H-is the hardness of the softest contacting surfaces [12]. The data in Table 1 indicated higher displacements and larger cracks at extreme load conditions with and without coatings.…”

Section: Finite Element Results Before Doe Optimizationmentioning

confidence: 99%

“…MARC is an MSC software provided by the University of Balamand (Marc was the first commercial nonlinear finite element software developed by Marc Analysis Research Corporation founded in 1971 by Dr. Pedro Marcal). It is based on the analysis of nonlinear elastic study and its main features of cracking and failure [3], [12]. Three and two-dimensional finite element modeling can capture cracks and deformations that were not previously possible with conventional program.…”

Section: Finite Element Methodologymentioning

confidence: 99%

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Optimization of wear and cracks in roller contact under different coating and a range of loads and temperature with fixed speed using design expert (DOE) and finite element model

Nehme

Esber²

2022

IJET

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Superior coating technology and roller materials such as M50 steels (0.8Câ€“4.2Crâ€“4.3Moâ€“1V wt. %) and (1.0Câ€“2.0Crâ€“0.5Moâ€“1.0Mnâ€“ 0.5Si wt. %) are well recognized in modern technology. The aim is to present all the external and internal parameters that affect the rolling system by taking into consideration the microstructure importance in identifying the service life of such rolling technique. The most dangerous defects are the cracks and wear under high loading contact and temperature formed during the rolling process.Finite elements method was used to simulate rolling and to calculate the extensive wear in order to use DOE to optimize several conditions from coating to load and temperature. The analysis involved here used the steel rollers with and without coatings, which include titanium nitride (TiN), zirconium nitride (ZrN), and tungsten carbide (WC) under different temperature and loading conditions. Results showed that cracks propagation were limited to extreme load when using coating technology. Design Expert optimization confirmed that TiN and WC coatings would enhance the lifetime of rollers and inhibit cracks initiations and extensive wear that could results in severe plastic deformation.

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Section: Finite Element Results Before Doe Optimizationmentioning

confidence: 99%

Section: Finite Element Methodologymentioning

confidence: 99%

Optimization of wear and cracks in roller contact under different coating and a range of loads and temperature with fixed speed using design expert (DOE) and finite element model

Nehme

Esber²

2022

IJET

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“…It was found that, at room temperature, wear occurs through a combination of local delamination of surface layer and abrasive grooving. Nagentrau et al [32] analysed the microstructure of tungsten carbide hardfacing deposited on the carbon steel blade. Energy-dispersive X-ray spectroscopy analysis confirmed a high percentage of tungsten in the carbide region, meanwhile non-carbide region contains both iron and tungsten, indicative of carbide and binder in close proximity.…”

Section: Introductionmentioning

confidence: 99%

A Comparative Study of Hardfacing Deposits Using a Modified Tribological Testing Strategy

et al. 2022

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In this study, hardfacing deposits using materials of different surface hardness are investigated using an innovative strategy for tribological testing. The abrasive wear behaviour of AISI 316L stainless steel is compared to the Cr–Ni–Mn alloy (OK Autrod 16.95) and the Cr-Mo alloy (Fluxofil 58), deposited on a substrate of S355JR steel. A modified three-body abrasion test and a modified scratch test were used to evaluate the tribological behaviour and wear mechanisms of these materials. The modified double-pass scratch test on the abraded surfaces is analysed using the geometrical parameters of grooves to aid in predicting the lifetime of machinery parts in abrasive working conditions. This leads to a shortening of the resistance to abrasion wear time of the evaluation of the abrasion wear resistance of materials. The validation of the results obtained in the double-pass scratch tests was carried out using three-body abrasion tests, according to the ASTM G65 standard. Wear mechanism investigations were carried out by scanning electron microscopy and three-dimensional surface topography and was analysed using an optical microscope. The results obtained from experimental research show that double-pass scratch tests demonstrated that it is possible to shorten the time needed to predict the abrasive behaviour of materials using this method.

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“…Generally, failure of coating tend to occur when the protective layer unable to live up to its estimated performance and service live [3,4]. Hardfacing is one of the protective coating methods by surface modification to minimize wear problems [5]. Hardfacing process modifies the surface of a substrate by depositing a protective layer of a higher wear resistance material.…”

Section: Introductionmentioning

confidence: 99%

“…high melting point (around 3000 K), high hardness (around 1800 HV), low friction coefficient, chemical inertness, oxidation resistance and excellent conductivity [9]. Tungsten carbide hardfacing is widely utilized in production of high wear resistance engineering components to in-crease its lifetime [5,7].…”

Section: Introductionmentioning

confidence: 99%

Characterisation of Electrode Drying Effect on the Tungsten Carbide Hardfacing Microstructure

Nagentrau

Tobi

Jamian

et al. 2020

MSF

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This study addresses characterization of ED (electrode drying) effect on WC hardfacing welding microstructure. Medium carbon steel blade which used as CD (continuous digester) blade to mix up sulphuric acid together with ilmenite ore in a digester tank as a major part of production. Microstructure of WC hardfacing, elemental composition alongside hardness analyses are executed to investigate the effect of ED (electrode drying). The ED (electrode drying) effect on microstructure and hardness values of WC hardafcing coating are characterized by SEM (scanning electron microscope) analysis and micro-Vickers hardness tester correspondingly. Results revealed that ED (electrode drying) effect less significant in the larger carbides at overall coating zone. However, the absence of ED (electrode drying) led to distribution of uniform smaller carbide in non-carbide zone. The uniform carbide distribution increases the hardness of the WC hardfacing coating.

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Microstructure Analysis of Tungsten Carbide Hardfacing on Carbon Steel Blade

Cited by 6 publications

References 14 publications

Optimization of wear and cracks in roller contact under different coating and a range of loads and temperature with fixed speed using design expert (DOE) and finite element model

Optimization of wear and cracks in roller contact under different coating and a range of loads and temperature with fixed speed using design expert (DOE) and finite element model

A Comparative Study of Hardfacing Deposits Using a Modified Tribological Testing Strategy

Characterisation of Electrode Drying Effect on the Tungsten Carbide Hardfacing Microstructure

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