An image analysis study of pit formation on Ti-6Al-4V
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Data
2003-01-20
Autores
Codaro, E. N.
Nakazato, R. Z.
Horovistiz, A. L.
Ribeiro, LMF
Ribeiro, R. B.
Hein, LRO
Título da Revista
ISSN da Revista
Título de Volume
Editor
Elsevier B.V.
Resumo
Metallographic techniques and digital image processing have been used to investigate heat-treated Ti-6Al-4V pitting corrosion, often used as aircraft components. LM and SEM metallography of 'as received', annealed (heating up to 800 degreesC/30 min and cooling furnace) and aged (heating up to 900 degreesC/30 min, quenching in water, heating up to 540 degreesC/240 min and again water-quenched) microstructures reveal pitting sites at primary and secondary alpha/beta interfaces. Microstructural arrangements influence and corrosive environment association on pit morphology could be demonstrated by digital image analysis and results statistical treatment. (C) 2002 Elsevier B.V. B.V. All rights reserved.
Descrição
Palavras-chave
pitting corrosion, pit morphology, titanium alloy, image processing and analysis, shape descriptors, quantitative metallography
Como citar
Materials Science and Engineering A-structural Materials Properties Microstructure and Processing. Lausanne: Elsevier B.V. Sa, v. 341, n. 1-2, p. 202-210, 2003.