Abstract
The microstructure and corrosion behavior of high pressure die-cast (HPDC) and super vacuum die-cast (SVDC) AM60B magnesium alloys were investigated in a complex salt solution using slow positron beam technique and potentiodynamic polarization tests. The experiments revealed that a CaCO3 film was formed on the surface of the alloys and that the rate of CaCO3 formation for the SVDC alloy with immersion time was slower than that of the HPDC alloy. The larger volume fraction of β-phase in the skin layer of the SVDC alloy than that of the HPDC alloy was responsible for the better corrosion resistance.
Original language | English |
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Pages (from-to) | 65-74 |
Number of pages | 10 |
Journal | Corrosion Science |
Volume | 81 |
DOIs | |
State | Published - Apr 2014 |
Bibliographical note
Funding Information:This research is supported by the National Natural Science Foundation of China under Grants 51071111, 11175136 and J1210061, the Fundamental Research Funds for the Central Universities and AUTO21.
Keywords
- A. Magnesium
- B. SEM
- B. XRD
ASJC Scopus subject areas
- General Chemistry
- General Chemical Engineering
- General Materials Science