The deposition of molybdenum and tungsten coatings on gun steel substrates by a plasma assisted CVD technique

Sheward, J. A.; Young, WJ

doi:10.1016/0042-207x(86)90266-6

Cited by 14 publications

(2 citation statements)

References 3 publications

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“…Tungsten based hard coatings have many interesting applications such as space nuclear power, propulsion for heat pipes, nuclear fuel cladding and radiation shields [11], and in semiconductor substrates for microelectronics [12]. In wear applications; tungsten is used for protection of bores of large caliber tank-guns [13] and in microelectromechanical systems (MEMS), tungsten coatings are used to improve their wear resistance [12].…”

Section: Introductionmentioning

confidence: 99%

Mechanical properties and tribological behavior at micro and macro-scale of WC/WCN/W hierarchical multilayer coatings

Rivera-Tello

Broitman

Flores-Ruiz

et al. 2016

Tribology International

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It is known that a hierarchical configuration helps to improve adhesion to the substrate and reduce the effects that generate a sharp change in a conventional multilayer coating, like interface stresses. We present a study of the mechanical properties and tribological behavior at the micro and macro scale of WC/WCN/W multilayer coatings deposited by magnetron sputtering, combining soft and hard layers with a hierarchical architecture.Variations in the number of layers and thicknesses, as well as the distribution within the coating are determinant to obtain the adequate mechanical properties in order to reduce the wear rate. It was found that the coating with high hierarchical configuration presented lower wear rates, in comparison to single layer and low hierarchical configuration coatings.

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Section: Introductionmentioning

confidence: 99%

Mechanical properties and tribological behavior at micro and macro-scale of WC/WCN/W hierarchical multilayer coatings

Rivera-Tello

Broitman

Flores-Ruiz

et al. 2016

Tribology International

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“…The various deposition techniques have been used to deposit molybdenum material on substrate material. Sheward et al 1 have used plasma-assisted chemical vapor deposition (CVD) technique to deposit molybdenum on gun steel substrate. Aubert et al 2 used physical vapour deposition technique to produce hard chrome and molybdenum coatings.…”

Section: Introductionmentioning

confidence: 99%

Effect of powder particle size on wear resistance of plasma sprayed molybdenum coating

Manjunatha

Basavarajappa

2014

Proceedings of the Institution of Mechanical Engineers, Part J:

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Plasma-sprayed molybdenum coatings are used in automotive, aerospace, pulp and paper industries in order to guard the machine parts against wear and corrosion. In this work, an attempt has been made to study the effect of particle size on wear behaviour of molybdenum coated steel. Two types of Mo coatings were deposited on American Iron and Steel Institute (AISI) 1020 steel substrate, one is with particle size of 15-40 mm (type I) and another one is with 40-90 mm (type II) using plasma spraying. The microstructures and worn surface morphologies of the coatings were analysed by means of X-ray diffractometer and scanning electron microscopy. It was found that the as-sprayed type I and type II coatings consist of molybdenum (Mo) as the major phase and molybdenum oxide (MoO 2 ) as the minor phases. For the evaluation of influence of coating powder particle size on wear characteristics, the sliding wear tests were performed on a pin-on-disc apparatus. The variation of volume loss with applied load, sliding speed and sliding distance was monitored. The type I sprayed coating exhibits better wear resistance. Tribological testing was also supported by metallographic examination for the identification of wear mechanisms. It was verified that the wear of coating is dominated by fracture of splats, crack propagation, delamination and plowing.

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Chemical Vapor Deposition of Assorted Metals

Hampden‐Smith

Kodas

1994

The Chemistry of Metal CVD

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The deposition of molybdenum and tungsten coatings on gun steel substrates by a plasma assisted CVD technique

Cited by 14 publications

References 3 publications

Mechanical properties and tribological behavior at micro and macro-scale of WC/WCN/W hierarchical multilayer coatings

Mechanical properties and tribological behavior at micro and macro-scale of WC/WCN/W hierarchical multilayer coatings

Effect of powder particle size on wear resistance of plasma sprayed molybdenum coating

Chemical Vapor Deposition of Assorted Metals

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