Improved Corrosion Resistance on Selective Laser Melting Produced Ti-5Cu Alloy after Heat Treatment

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...

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Main Authors: Qin, P., Liu, Y., Sercombe, T., Li, Y., Zhang, C., Cao, C., Sun, Hongqi, Zhang, L.
Format: Journal Article
Published: 2018
Online Access:http://hdl.handle.net/20.500.11937/71006
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author Qin, P.
Liu, Y.
Sercombe, T.
Li, Y.
Zhang, C.
Cao, C.
Sun, Hongqi
Zhang, L.
author_facet Qin, P.
Liu, Y.
Sercombe, T.
Li, Y.
Zhang, C.
Cao, C.
Sun, Hongqi
Zhang, L.
author_sort Qin, P.
building Curtin Institutional Repository
collection Online Access
description 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.
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institution Curtin University Malaysia
institution_category Local University
last_indexed 2025-11-14T10:46:24Z
publishDate 2018
recordtype eprints
repository_type Digital Repository
spelling curtin-20.500.11937-710062019-02-11T01:07:00Z Improved Corrosion Resistance on Selective Laser Melting Produced Ti-5Cu Alloy after Heat Treatment Qin, P. Liu, Y. Sercombe, T. Li, Y. Zhang, C. Cao, C. Sun, Hongqi Zhang, L. 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. 2018 Journal Article http://hdl.handle.net/20.500.11937/71006 10.1021/acsbiomaterials.8b00319 restricted
spellingShingle Qin, P.
Liu, Y.
Sercombe, T.
Li, Y.
Zhang, C.
Cao, C.
Sun, Hongqi
Zhang, L.
Improved Corrosion Resistance on Selective Laser Melting Produced Ti-5Cu Alloy after Heat Treatment
title Improved Corrosion Resistance on Selective Laser Melting Produced Ti-5Cu Alloy after Heat Treatment
title_full Improved Corrosion Resistance on Selective Laser Melting Produced Ti-5Cu Alloy after Heat Treatment
title_fullStr Improved Corrosion Resistance on Selective Laser Melting Produced Ti-5Cu Alloy after Heat Treatment
title_full_unstemmed Improved Corrosion Resistance on Selective Laser Melting Produced Ti-5Cu Alloy after Heat Treatment
title_short Improved Corrosion Resistance on Selective Laser Melting Produced Ti-5Cu Alloy after Heat Treatment
title_sort improved corrosion resistance on selective laser melting produced ti-5cu alloy after heat treatment
url http://hdl.handle.net/20.500.11937/71006