Improved corrosion and cavitation erosion resistance of laser-based powder bed fusion produced Ti-6Al-4V alloy by pulsed magnetic field treatment

Mohin Ma, Sufyan Akram, Anatolii Babutskyi, Andreas Chrysanthou, Edward Randviir, Aidan M. Doyle

Research output: Contribution to journalArticlepeer-review

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Abstract

The application of pulsed magnetic field (PMF) treatment demonstrated enhanced corrosion resistance in saline solution and prolonged resistance to cavitation erosion in deionised water for Ti-6AI-4V alloy manufactured by laser-based powder bed fusion (LPBF) and conventional wrought processing methods. The observed outcomes were attributed to the formation of a denser protective surface oxide layer and microstructural changes, resulting in a reduction of the α’ phase by 0.13% and an increase in the presence of dislocations at the surface. Consequently, this led to an increase in the compressive residual stresses. Additionally, the application of this treatment resulted in the formation of highly refined and uniform precipitates, leading to a notable enhancement in microhardness by 5.73% and 5.85% for the conventionally manufactured (CM) and LPBF samples, respectively.
Original languageEnglish
Article number108394
Pages (from-to)1-13
Number of pages13
JournalMaterials Today Communications
Volume38
Early online date20 Feb 2024
DOIs
Publication statusPublished - Mar 2024

Keywords

  • Ti-6Al-4V, Laser-based powder bed fusion, Magnetic field treatment, Corrosion, Cavitation erosion, Microstructure.
  • Corrosion
  • Cavitation erosion
  • Pulsed magnetic field treatment
  • Ti-6Al-4V
  • Laser-based powder bed fusion
  • Microstructure

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