Corrosion and tribocorrosion behaviour of Ti6Al4V produced by selective laser melting and hot pressing in comparison with the commercial alloy
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The corrosion and tribocorrosion behaviour of SLM-produced Ti6Al4V alloy was studied in comparison with its HP and commercial counterparts in 9 g/L NaCl solution at body temperature. Results showed that SLM processing route influenced the electrochemical response of the SLM-produced alloy by leading to a relatively lower quality for the passive film due to decreased β phase and the formation of α′ phase. However, after tribocorrosion, neither the total volume loss nor the volume loss under the influence of mechanical wear and wear-accelerated corrosion showed any statistically significant difference between the processing routes.
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Corrosion, hot pressing, selective laser melting, Ti6Al4V, tribocorrosion
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Inglês
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Journal of Materials Processing Technology, v. 266, p. 239-245.
