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EFFECT OF ATMOSPHERIC-PRESSURE GAS-PLASMA TREATMENT ON SURFACE PROPERTIES OF HOT-DIP Zn-Mg-Al ALLOY-COATED STEEL

  • Chang U. Jeong
  • , Jae Hyeon Kim
  • , Je Shin Park
  • , Min Su Kim
  • , Sung Jin Kim*
  • , Min Suk Oh*
  • *Corresponding author for this work
  • Jeonbuk National University
  • Korea Institute of Industrial Technology
  • Sunchon National University

Research output: Contribution to journalJournal articlepeer-review

Abstract

The effect of plasma-radical change on the surface properties of Zn-Mg-Al ternary-alloy-coated steel sheets during atmospheric-pressure (AP) plasma treatment using different process gases: O2, N2, and compressed air was investigated. The plasma-induced radicals promoted the formation of chemical particles on the surface of the Zn-Mg-Al coating, thereby increasing the surface roughness. The surface energy was calculated using the Owen-Wendtgeometric equation. Contact angle measurements indicated that the surface free energy of the alloy sheets increased upon AP plasma treatment. The surface properties of the Zn-Mg-Al coating changed more significantly in the order air > O2 > N2 gas, indicating that the plasma radicals facilitated the carbonization and hydroxylation of the Mg and Al components during the AP plasma treatment.

Original languageEnglish
Pages (from-to)187-190
Number of pages4
JournalArchives of Metallurgy and Materials
Volume68
Issue number1
DOIs
StatePublished - 2023

Keywords

  • plasma treatment
  • process gas
  • surface energy
  • Zn-Mg-Al–galvanized steel

Quacquarelli Symonds(QS) Subject Topics

  • Materials Science

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