Influence of Zn Addition on Aging Response and Corrosion Resistance of Mg-Gd-Nd-Zr Alloy

• Park B. K.

  Advanced Materials Division, Korea Institute of Industrial Technology

• Jun J. H.

  Advanced Materials Division, Korea Institute of Industrial Technology

• Kim J. M.

  Division of Advanced Materials Engineering, Hanbat National University

Abstract

The age hardening response and corrosion resistance of Mg-8%Gd-2%Nd-0.3%Zr alloys with various Zn contents up to 2% (in weight) have been investigated. The Zn-free alloy exhibits relatively lower age hardening and slower age response, whereas the addition of Zn enhances the age hardening response remarkably. The weight loss after salt spray test decreases with increasing Zn content in the peak-aged alloys, which is presumably associated with the increased amount of eutectic Mg-Zn-Nd-Gd phase acting as a corrosion barrier along the α grain boundaries. The potentiodynamic polarization curves reveal that with the increase in Zn content, the value of I_corr decreases gradually while the value of E_corr increases.

Journal

• MATERIALS TRANSACTIONS

  MATERIALS TRANSACTIONS 49 (5), 931-935, 2008

  The Japan Institute of Metals and Materials

Keywords

• magnesium-gadolinium
• polarization curve
• salt spray test
• corrosion resistance

Details

• CRID: 1390282679226075520
• NII Article ID: 10021146320
• NII Article ID: 130004454007
• NII Book ID: AA1151294X
• DOI: 10.2320/matertrans.mc200743
• ISSN: 13475320
• ISSN: 13459678
• NDL BIB ID: 9480184
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I9480184
• Web Site: https://www.jstage.jst.go.jp/article/matertrans/49/5/49_MC200743/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed