Corrosion behavior of selective laser melted Ti-6Al-4 V alloy in NaCl solution

Document Type

Journal Article

Publication Title

Corrosion Science

Publisher

Elsevier

School

School of Engineering

RAS ID

21206

Comments

Dai, N., Zhang, L. C., Zhang, J., Chen, Q., & Wu, M. (2016). Corrosion behavior of selective laser melted Ti-6Al-4V alloy in NaCl solution. Corrosion Science, 102, 484-489. Available here

Abstract

Electrochemical measurements were performed to investigate the corrosion behavior of Ti-6Al-4 V alloy prepared by selective laser melting (SLM) and commercial Grade 5 sample for comparison. Electrochemical results showed that the SLM-produced sample possesses poorer corrosion resistance than the Grade 5 sample. Microstructure studies suggested that the SLM-produced sample is composed of dominant acicular α' martensite and some prior β grains, unlike the typical α + β microstructure in Grade 5 sample. The unfavorable corrosion resistance of the SLM-produced sample is related to the considerably large amount of acicular α' and less β-Ti phase in the microstructure compared to the Grade 5 sample. © 2015 Elsevier Ltd.

DOI

10.1016/j.corsci.2015.10.041

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