摘要
The effects of different elements including Al,Sn and Zn with ability of solution hardening on corrosion behavior of a Mg alloy have been studied.The microstructure was analyzed and the electrochemical and immersion techniques were used for corrosion studies.Scanning kelvin probe force microscopy(SKPFM)was utilized to analyze the volta-potential distribution on the surface.It was found that all additives reduced the corrosion resistance;however,Zn decreased the corrosion resistance less than Al and Sn.The corrosion rate was quantitatively explained through volta-potential difference and the second phase fraction.
基金
This work was supported by the National Research Foun-dation grant(2015R1A2A1A01006795)funded by the Ministry of Science and ICT of Korea through the Research Insti-tute of Advanced Materials and Magnesium Technology In-novation Center.
