Published 2018 | Version v1
Journal article Metadata-only

Evaluation of the influence of surface finishing on the corrosion resistance of HVOF applied Inconel 625 coatings on steel

Creators

  • 1. Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS (Brazil)

Description

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. (author)

Availability note (English)

Available online http://www.scielo.br/pdf/mr/v21n2/1516-1439-mr-1980-5373-MR-2016-0844.pdf

Additional details

Identifiers

URL
http://www.scielo.br/pdf/mr/v21n2/1516-1439-mr-1980-5373-MR-2016-0844.pdf;

Publishing Information

Journal Title
Materials Research (Sao Carlos, Online)
Journal Volume
21
Journal Issue
2
Journal Page Range
p. 1-8
ISSN
1980-5373

INIS

Country of Publication
Brazil
Country of Input or Organization
Brazil
INIS RN
49055680
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
CORROSION RESISTANCE; INCONEL 625; METALLOGRAPHY; MORPHOLOGY; OXYGEN; RESIDUAL STRESSES; ROUGHNESS; SPRAY COATING; SURFACE FINISHING; X-RAY DIFFRACTION
Descriptors DEC
ALLOY-NI61CR22MO9NB4FE3; ALLOYS; ALUMINIUM ADDITIONS; ALUMINIUM ALLOYS; CHROMIUM ALLOYS; COHERENT SCATTERING; CORROSION RESISTANT ALLOYS; DEPOSITION; DIFFRACTION; ELEMENTS; HEAT RESISTANT MATERIALS; HEAT RESISTING ALLOYS; INCONEL ALLOYS; IRON ALLOYS; MATERIALS; MOLYBDENUM ALLOYS; NICKEL ALLOYS; NICKEL BASE ALLOYS; NIOBIUM ALLOYS; NONMETALS; SCATTERING; STRESSES; SURFACE COATING; SURFACE PROPERTIES; TITANIUM ADDITIONS; TITANIUM ALLOYS; TRANSITION ELEMENT ALLOYS