Role of trace additions of Mn and Y in improving the corrosion resistance of Mg–3Al–1Zn alloy
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- Role of trace additions of Mn and Y in improving the corrosion resistance of Mg–3Al–1Zn alloy
- Baek, Soo-Min; Lee, Si-Young; Kim, Jong Chan; Kwon, Jaeho; Jung, Hoseok; Lee, Sooseok; Lee, Ki-Suk; Park, Sung Soo
- Issue Date
- Elsevier Ltd
- CORROSION SCIENCE, v.178, pp.108998
- The corrosion resistance of conventional and experimental Mg–3Al–1Zn-based alloys with different Mn and Y content was comparatively investigated. After immersion for 72 h in a 0.6 M NaCl solution at 25 °C, an experimental Mg–3Al–1Zn–0.05Mn–0.03Y alloy exhibited a corrosion rate of 0.91 mm y−1, which is about four times slower than that of a conventional Mg–3Al–1Zn–0.3Mn alloy. Microstructural factors underlying the improved corrosion resistance achieved by the trace additions of Mn and Y are discussed. © 2020 Elsevier Ltd
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