Evaluation of the Influence of Surface Finishing on the Corrosion Resistance of HVOF Applied Inconel 625 Coatings on Steel

Autor:	Mariana Sgambaro de Lorenzi, Rafael Menezes Nunes, Tiago Falcade, Thomas Clarke
Jazyk:	angličtina
Rok vydání:	2017
Předmět:	HVOF Inconel 625 Residual Stresses Corrosion Resistance Materials of engineering and construction. Mechanics of materials TA401-492
Zdroj:	Materials Research, Vol 21, Iss 2 (2017)
Druh dokumentu:	article
ISSN:	1516-1439 1980-5373
DOI:	10.1590/1980-5373-mr-2016-0844
Popis:	In this work, the corrosion resistance of Inconel 625 coatings applied to AISI 4140 steel plates was evaluated. Coatings were produced by High Velocity Oxygen Fuel (HVOF) by use of two different equipment which use either kerosene (liquid) or propane (gas) as fuel. The resulting coatings were evaluated in two conditions: as-deposited and after a surface finishing process by grinding. Residual stress distributions in the coatings were characterized by X-ray diffraction and their morphology was verified through metallography and roughness measurements. Potentiodynamic polarization corrosion testing complemented their analysis. The results show a strong influence of the surface finishing process on the corrosion performance of the coatings.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/b0e84289f3f542d793e16049ec635ca1 Zobrazit plný text záznamu View record in DOAJ