Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 899, Issue -, Pages -Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2021.163226
Keywords
Electrochemical properties; Additive technologies; Direct energy deposition; Ti-6Al-4V; Titanium alloys; Corrosion resistance
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Funding
- Ministry of Science and Higher Education of the Russian Federation as part of the World-class Research Center program: Advanced Digital Technologies [075-15-2020-903]
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This study investigates the evolution of electrochemical and mechanical properties of heat-treated Ti-6Al-4V alloy through electrochemical studies. The results show that lamellae size and phase composition have a significant impact on the corrosion and mechanical properties of the alloy.
Additive technologies are actively implemented in various industries. The actual task is a complex study of the properties of the products. In the present work, electrochemical studies of the heat-treated Ti-6Al-4V alloy manufactured by Direct Energy Deposition were carried out to determine the evolution of electrochemical and mechanical properties. The analysis of the structure and phase composition were compared with the results of electrochemical and mechanical properties. The effect of the lamellae size and phase composition on corrosion and mechanical properties is more pronounced for the DED Ti-6Al-4V alloy. It was determined that the best electrochemical properties are possessed by a heat treated sample at 800 degrees C. With an increase the temperature of the heat treatment up to 900 degrees C, the corrosion resistance decreases, however, the values of relative elongation increase. (c) 2021 Published by Elsevier B.V.
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