Enhanced mechanical behavior and corrosion resistance of AZ31 magnesium alloy through a novel solid-phase processing

V. Beura, D. Zhang, N. Overman, J. Darsell, D. R. Herling, K. Solanki, V. V. Joshi

Research output: Contribution to journalArticlepeer-review

Abstract

In this work, a novel solid-phase processing; namely, shear assisted processing and extrusion (ShAPE) was used to modify the microstructure of AZ31 magnesium alloy, which simultaneously improved corrosion resistance along with mechanical properties compared to wrought AZ31 alloys. A noble breakdown potential, higher polarization resistance, and a smaller film thickness after immersion was observed after ShAPE processing. The improved corrosion resistance of ShAPE processed alloy was attributed to grain refinement, homogenized distribution of second phases, and low residual strain in the matrix. Similarly, a tilted basal texture along the ShAPE processed direction contributed towards enhanced ductility and eliminated the tension-compression asymmetry.

Original languageEnglish (US)
Article number110074
JournalCorrosion Science
Volume197
DOIs
StatePublished - Apr 1 2022

Keywords

  • Ductility
  • Electrochemical impedance spectroscopy
  • Magnesium alloys
  • Second phase particles
  • X-ray photoelectron spectroscopy

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Materials Science(all)

Fingerprint

Dive into the research topics of 'Enhanced mechanical behavior and corrosion resistance of AZ31 magnesium alloy through a novel solid-phase processing'. Together they form a unique fingerprint.

Cite this