Plasma-sprayed Mo-Re coatings for glass industry applications

Osadnik, Małgorzata; Wrona, Adriana; Lis, Marcin; Kamińska, Małgorzata; Bilewska, Katarzyna; Czepelak, M.; Czechowska, K; Moskal, G.; Więcław, Grzegorz

doi:10.1016/j.surfcoat.2017.01.056

Cited by 12 publications

(3 citation statements)

References 9 publications

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“…Rhenium was introduced into molybdenum during a process of the reduction of ammonium perrhenate mixture with Mo powder. The process was conducted at 900°C in an argon atmosphere for 1 h. The influence of additional technological operations of annealing at 1150°C for 24 h on the properties of powders and coatings was determined [13]. Chemical composition in microareas, the homogeneity of elemental distribution, and observations of microstructure were determined with X-ray microanalyzer EPMA 8230 from Jeol.…”

Section: Technology and Research Methodsmentioning

confidence: 99%

Composite ZrO<sub>2</sub>-Based Cermet Material Modified with Mo

Wrona

Czechowska

Osadnik

et al. 2015

SSP

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The work presents studies of a new ceramic-metallic material. The base is a ZrO2-Mo cermet which is modified with metallic Mo or Mo85Re15 alloy coating. The structure and microstructure of Mo85Re15 alloy powders and the composite were characterized. The annealing procedure was found to influence phase composition of powder composites but not their morphology. The plasma sprayed powders, both metallic and alloyed, form coatings that adhere well to the cermet substrate. The coatings show a better homogeneity in comparison to powders and more favourable phase composition.Keywords: cermets, plasma spraying, corrosion resistance

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Section: Technology and Research Methodsmentioning

confidence: 99%

Composite ZrO<sub>2</sub>-Based Cermet Material Modified with Mo

Wrona

Czechowska

Osadnik

et al. 2015

SSP

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“…The authors reported an increase in hardness compared to the non-modified material. Composite coatings (Mo,Re)-(Mo,Re)Si2 prepared on a ceramic substrate were reported as suitable for use in the glass production industry [ 19 , 20 ]. Research was also performed on the modification of AlSi9Mg alloy with rhenium subjected to friction stir processing (FSP).…”

Section: Introductionmentioning

confidence: 99%

Ni–Cr Powders Modified with Rhenium as a Novel Coating Material—Physical Properties, Microstructure, and Behavior in Plasma Plume

et al. 2022

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The aim of this work was to develop a new coating material based on Ni20Cr alloy modified with up to 50%wt. rhenium. The modification was carried out by the mechanical mixing of the base powder and ammonium perrhenate with the subsequent thermoreduction in an H2 atmosphere. The obtained powder consists of a nickel–chromium core surrounded by a rhenium shell. The characterization of the powders—including their microstructure, phase and chemical composition, density, flowability, particle size distribution, and specific surface area—was performed. The influence of plasma current intensity and hydrogen gas flow on in-flight particle temperature and velocity were investigated. The results indicate that there is interdiffusion between the base Ni20Cr and the rhenium shell, resulting in intermediary solid solution(s). The modified powders have a higher specific surface area and a lower flowability, but this does not prevent them from being used as feedstock in plasma spraying. In-flight measurements reveal that increasing the content of rhenium allows for the higher temperature of particles, though it also reduces their speed.

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“…They show excellent scuffing resistance to abrasive wear, as well as high corrosion resistance [1][2][3]. The wear resistance of hardened steel coated with a Mo coating could be enhanced by a factor of 2-18 [4].…”

Section: Introductionmentioning

confidence: 99%

A Comparison Study on Wear Behaviors of Mo and Al2O3-Mo Coatings from RT to 300 °C

et al. 2018

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Mo and Al 2 O 3 -Mo coatings are fabricated on a low-carbon steel substrate using atmospheric plasma spraying. The microstructure and mechanical properties of two as-sprayed coatings, with a particular focus on the tribological behaviors from room temperature to 300 • C, are comparatively investigated in this study. Microstructural analysis of the coatings shows that the porosity of the Al 2 O 3 -Mo coating is higher than that of Mo coating. The addition of Al 2 O 3 particles reduces the coating-substrate adhesion strength. The Al 2 O 3 -Mo coating, in comparison to the Mo coating, shows improved mechanical properties, such as hardness and wear resistance. The friction coefficients of both coatings increase with further increases in test temperatures. The friction coefficient of the Al 2 O 3 -Mo coating, tested above 100 • C, is lower than that of the Mo coating. The wear failure mechanisms of the two coatings are delamination, brittle fracture, oxidation and adhesion wear. In addition, local plastic deformation was also found in the Mo coating.

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Plasma-sprayed Mo-Re coatings for glass industry applications

Cited by 12 publications

References 9 publications

Composite ZrO<sub>2</sub>-Based Cermet Material Modified with Mo

Composite ZrO<sub>2</sub>-Based Cermet Material Modified with Mo

Ni–Cr Powders Modified with Rhenium as a Novel Coating Material—Physical Properties, Microstructure, and Behavior in Plasma Plume

A Comparison Study on Wear Behaviors of Mo and Al2O3-Mo Coatings from RT to 300 °C

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