Improved Corrosion Resistance on Selective Laser Melting Produced Ti-5Cu Alloy after Heat Treatment
Abstract
Copyright © 2018 American Chemical Society. A Ti-5Cu alloy produced by selective laser melting exhibits a nonuniform Ti2Cu phase structure, which contains a small amount of a' phase in melt pool boundaries thereby resulting in reduced corrosion resistance. The heat-treatment process proposed in this work eliminates the deleterious effect of a' phase and the Ti2Cu phase is refined using different cooling rates, which improves the corrosion resistance. The electrochemical results indicate that the heat-treated Ti-5Cu samples have similar corrosion behavior to pure CP-Ti. A slower cooling rate produces a larger spacing between the Ti2Cu phases in the microstructure of the sample, resulting in higher corrosion resistance. The corrosion behavior of SLM-produced Ti-5Cu and heat-treated counterparts with different microstructure are detailed discussed.
Citation
Source Title
ISSN
School
Collection
Related items
Showing items related by title, author, creator and subject.
-
Kirby, Nigel Matthew (2003)The widespread use of high temperature superconductors through improved understanding of their underlying physics is in part dependent on the synthesis of large, high quality single crystals for physical research. Crucible ...
-
Bernås, M.; Westermann, I.; Johnsen, R.; Torres, C.; Jernberg, A.; Qvale, A.; Iannuzzi, Mariano (2018)© 2018 by NACE International. Although extensively used in oil and gas production due to their excellent combination of mechanical properties and corrosion resistance, 25Cr super duplex stainless steels (SDSSs) are ...
-
Iannuzzi, Mariano; Bernås, M.; Westermann, I.; Lauritsen, C.; Johnsen, R. (2017)Although duplex stainless steels are extensively used in oil and gas production due to their excellent combination of mechanical properties and corrosion resistance, they are susceptible to precipitation of deleterious ...