Effects of laser re-melting on the corrosion properties of HVOF coatings

B. S. Yilbas; I. H. Toor; F. Patel; M. A. Baig

doi:10.1007/s11665-012-0428-4

Effects of laser re-melting on the corrosion properties of HVOF coatings

B. S. Yilbas^*
, I. H. Toor
, F. Patel
, M. A. Baig

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

12 Scopus citations

Abstract

HVOF coating of Inconel 625 powder on carbon steel is carried out. Laser melting of the resulting coating is realized to improve coating structural integrity. Morphological and microstructural changes are examined in the coating prior and after laser treatment process using scanning electron microscopy, energy dispersive spectroscopy, and x-ray diffraction (XRD). The residual stress developed is measured on the surface vicinity of the laser-treated coating using the XRD technique. The corrosion resistance of the laser-treated and untreated coating surfaces is measured, incorporating the potentiodynamic tests in 0.5 M NaCl aqueous solution. It is found that laser treatment reduces the pores and produces cellular structures with different sizes and orientations in the coating. Laser-controlled melting improves the corrosion resistance of the coating surface.

Original language	English
Pages (from-to)	1505-1511
Number of pages	7
Journal	Journal of Materials Engineering and Performance
Volume	22
Issue number	5
DOIs	https://doi.org/10.1007/s11665-012-0428-4
State	Published - May 2013

Bibliographical note

Funding Information:
The authors acknowledge the support of King Fahd University of Petroleum and Minerals, Dhahran, Saudi Arabia for this study.

Keywords

Corrosion resistance
HVOF
Laser

ASJC Scopus subject areas

General Materials Science
Mechanics of Materials
Mechanical Engineering

Access to Document

10.1007/s11665-012-0428-4

Cite this

@article{9f668db517e841d482683b62fce250d1,

title = "Effects of laser re-melting on the corrosion properties of HVOF coatings",

abstract = "HVOF coating of Inconel 625 powder on carbon steel is carried out. Laser melting of the resulting coating is realized to improve coating structural integrity. Morphological and microstructural changes are examined in the coating prior and after laser treatment process using scanning electron microscopy, energy dispersive spectroscopy, and x-ray diffraction (XRD). The residual stress developed is measured on the surface vicinity of the laser-treated coating using the XRD technique. The corrosion resistance of the laser-treated and untreated coating surfaces is measured, incorporating the potentiodynamic tests in 0.5 M NaCl aqueous solution. It is found that laser treatment reduces the pores and produces cellular structures with different sizes and orientations in the coating. Laser-controlled melting improves the corrosion resistance of the coating surface.",

keywords = "Corrosion resistance, HVOF, Laser",

author = "Yilbas, \{B. S.\} and Toor, \{I. H.\} and F. Patel and Baig, \{M. A.\}",

note = "Funding Information: The authors acknowledge the support of King Fahd University of Petroleum and Minerals, Dhahran, Saudi Arabia for this study.",

year = "2013",

month = may,

doi = "10.1007/s11665-012-0428-4",

language = "English",

volume = "22",

pages = "1505--1511",

journal = "Journal of Materials Engineering and Performance",

issn = "1059-9495",

publisher = "Springer New York",

number = "5",

}

TY - JOUR

T1 - Effects of laser re-melting on the corrosion properties of HVOF coatings

AU - Yilbas, B. S.

AU - Toor, I. H.

AU - Patel, F.

AU - Baig, M. A.

N1 - Funding Information: The authors acknowledge the support of King Fahd University of Petroleum and Minerals, Dhahran, Saudi Arabia for this study.

PY - 2013/5

Y1 - 2013/5

N2 - HVOF coating of Inconel 625 powder on carbon steel is carried out. Laser melting of the resulting coating is realized to improve coating structural integrity. Morphological and microstructural changes are examined in the coating prior and after laser treatment process using scanning electron microscopy, energy dispersive spectroscopy, and x-ray diffraction (XRD). The residual stress developed is measured on the surface vicinity of the laser-treated coating using the XRD technique. The corrosion resistance of the laser-treated and untreated coating surfaces is measured, incorporating the potentiodynamic tests in 0.5 M NaCl aqueous solution. It is found that laser treatment reduces the pores and produces cellular structures with different sizes and orientations in the coating. Laser-controlled melting improves the corrosion resistance of the coating surface.

AB - HVOF coating of Inconel 625 powder on carbon steel is carried out. Laser melting of the resulting coating is realized to improve coating structural integrity. Morphological and microstructural changes are examined in the coating prior and after laser treatment process using scanning electron microscopy, energy dispersive spectroscopy, and x-ray diffraction (XRD). The residual stress developed is measured on the surface vicinity of the laser-treated coating using the XRD technique. The corrosion resistance of the laser-treated and untreated coating surfaces is measured, incorporating the potentiodynamic tests in 0.5 M NaCl aqueous solution. It is found that laser treatment reduces the pores and produces cellular structures with different sizes and orientations in the coating. Laser-controlled melting improves the corrosion resistance of the coating surface.

KW - Corrosion resistance

KW - HVOF

KW - Laser

UR - https://www.scopus.com/pages/publications/84893700933

U2 - 10.1007/s11665-012-0428-4

DO - 10.1007/s11665-012-0428-4

M3 - Article

AN - SCOPUS:84893700933

SN - 1059-9495

VL - 22

SP - 1505

EP - 1511

JO - Journal of Materials Engineering and Performance

JF - Journal of Materials Engineering and Performance

IS - 5

ER -

Effects of laser re-melting on the corrosion properties of HVOF coatings

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

Access to Document

Fingerprint

Cite this