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Articles

Producing hardfacing composite materials for ecologically safe technologies

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Abstract

The application of hardfacing materials for producing high-strength coatings on components working in abrasive wear conditions is one of the important directions of research into increasing the service life of road construction, agricultural and other types of equipment. However, in producing this equipment, the ecological safety requirements are sometimes ignored and this results in negative effects on the environment and the health of personnel. This article describes the results of scientific and research investigations of the team of authors to develop a cladding powder by the method of chemical gas phase deposition of nickel tetracarbonyl on the surface of aluminium oxide particles and application of the powder for producing wear-resistant coatings. The powder materials are deposited in a closed cycle excluding contact of the personnel with toxic substances and emission of contaminants into the atmosphere, resulting in a safe process. Plasma coatings with the required physical–mechanical properties have been produced. This confirms the efficiency of the approaches used in this case and increases the service life of working sections of machines subjected to abrasive wear.

Notes

Selected from Svarochnoe Proizvodstvo, 2015, 68 (11) 45–48.

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