Iron boride-based thermal diffusion coatings for tribo-corrosion oil production applications

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DOIResolve DOI: http://doi.org/10.1016/j.ceramint.2015.10.109
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TypeArticle
Journal titleCeramics International
ISSN0272-8842
SubjectAbrasion; Borides; Coatings; Corrosion; Diffusion; Diffusion coatings; Failure (mechanical); Friction; Hard coatings; Iron; Iron compounds; Protective coatings; Thermal diffusion; Tribology; Wear resistance; Abrasion corrosion; Chemical inertness; Complex shapes; Engineering components; Reciprocating sliding; Sliding abrasion; Synergistic action; Tribo-corrosion; Boride coatings
AbstractEngineering components and tubing systems for the down-hole applications in the oil production should withstand severe friction, sliding abrasion and corrosion actions. To resolve wear and corrosion issues, the hard iron boride-based coatings on steels obtained through the thermal diffusion process can be applied on the entire working surfaces of large size and complex shape products. The behavior of these coatings obtained at Endurance Technologies Inc. has been studied in the friction-abrasion, friction-corrosion and friction-abrasion-corrosion conditions simulating oil production service conditions. Tribological studies have been conducted using the "rod-on-flat" reciprocating sliding method in the conditions simulating actual application conditions. The synergistic actions of harsh conditions results in a higher rate of materials destruction. The obtained iron boride coatings demonstrated significantly lower wear losses with no delamination and spalling than untreated steels and Ni- and Cr-based coatings. The encouraging tribo-corrosion test results for boride coatings are explained by their high hardness and chemical inertness, specific structure obtained through the thermal diffusion process with reduced micro-crack propagation and the thin "tribofilm" formed during a friction mode. Successful application of the products with the boride protective coatings is reported.
Publication date
PublisherElsevier
LanguageEnglish
AffiliationNational Research Council Canada (NRC-CNRC); Energy, Mining and Environment
Peer reviewedYes
NPARC number21277389
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Record identifier5746a005-d452-43fb-8a9f-226164921c3b
Record created2016-03-09
Record modified2016-05-09
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