Corrosion resistance of selective laser melted Ti–6Al–4V alloy in salt fog environment

Kaitlyn Bower; Shawn Murray; Andrew Reinhart; Andy Nieto

Results in Materials (Dec 2020)

Corrosion resistance of selective laser melted Ti–6Al–4V alloy in salt fog environment

Kaitlyn Bower,
Shawn Murray,
Andrew Reinhart,
Andy Nieto

Affiliations

Kaitlyn Bower: Department of Mechanical and Aerospace Engineering, Naval Postgraduate School, Monterey, CA, 93943, USA
Shawn Murray: Department of Mechanical and Aerospace Engineering, Naval Postgraduate School, Monterey, CA, 93943, USA
Andrew Reinhart: Department of Mechanical and Aerospace Engineering, Naval Postgraduate School, Monterey, CA, 93943, USA
Andy Nieto: Corresponding author.; Department of Mechanical and Aerospace Engineering, Naval Postgraduate School, Monterey, CA, 93943, USA

Journal volume & issue: Vol. 8
p. 100122

Abstract

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In this study the corrosion resistance of an additively manufactured (AM) titanium alloy Ti–6Al–4V (Ti64) in a simulated marine environment was investigated. Selective laser melting (SLM) process was used to fabricate Ti64 coupons that were tested in a simulated marine environment using a salt fog chamber. The corroded specimens were characterized by scanning electron microscopy, X-ray diffraction, and energy dispersive spectroscopy. The AM printed Ti64 was determined to form a protective oxide layer that develops after approximately 400 h of exposure in a salt fog chamber, after which mass change plateaued. The protective oxide formed was determined to be a mixed oxide primarily consisting of TiO2and Al2O3.

Published in Results in Materials

ISSN: 2590-048X (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering: Materials of engineering and construction. Mechanics of materials
Website: https://www.journals.elsevier.com/results-in-materials

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