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

Polina Metalnikov, Guy Ben-Hamu, Dan Eliezer

Research output: Contribution to journalArticlepeer-review

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.

Original languageEnglish
Pages (from-to)509-520
Number of pages12
JournalProgress in Additive Manufacturing
Volume7
Issue number3
DOIs
StatePublished - 1 Jun 2022

Keywords

  • Additive manufacturing
  • Anisotropy
  • Corrosion behavior
  • Passivity
  • Ti-6Al-4V

ASJC Scopus subject areas

  • Industrial and Manufacturing Engineering

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