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Corrosion behavior of AM-Ti-6Al-4V: a comparison between EBM and SLM

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Abstract

This work studies and compares the corrosion behavior of different planes of additively manufactured (AM) Ti-6Al-4V in 0.9 M NaCl solution. The samples were prepared by two different methods: electron beam melting (EBM) and selective laser melting (SLM). The obtained results indicate that the processing has a strong influence on the susceptibility to corrosion of AM Ti-6Al-4V alloy. Two interesting phenomena were observed: (a) the corrosion resistance of XY-planes of EBM and SLM Ti-6Al-4V is quite similar and is better than that of the XZ-planes; (b) the corrosion resistance of SLM Ti-6Al-4V alloy is slightly better than that of EBM Ti-6Al-4V in both XY- and XZ-planes. The effect of processing on the microstructure and corrosion resistance is discussed in detail.

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Acknowledgements

We would like to thank Dr. Vladimir Ezersky for the TEM measurements.

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This research received no external funding.

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Authors and Affiliations

  1. Department of Mechanical Engineering, Sami Shamoon College of Engineering, 84 Jabotinsky St., 77245, Ashdod, Israel

    Polina Metalnikov & Guy Ben-Hamu

  2. Department of Materials Engineering, Ben-Gurion University of the Negev, 84105, Beer-Sheva, Israel

    Dan Eliezer

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  1. Polina Metalnikov
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  2. Guy Ben-Hamu
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  3. Dan Eliezer
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Correspondence to Guy Ben-Hamu.

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Metalnikov, P., Ben-Hamu, G. & Eliezer, D. Corrosion behavior of AM-Ti-6Al-4V: a comparison between EBM and SLM. Prog Addit Manuf 7, 509–520 (2022). https://doi.org/10.1007/s40964-022-00293-8

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  • DOI: https://doi.org/10.1007/s40964-022-00293-8

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