Corrosion and chemical behavior of Mg97Zn1Y2-1wt.%SiC under different corrosion solutions
| Autor: | Yandan Xue, Wei Liu, Houbin Wang, Diqing Wan, Jiajun Hu |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Materials science
Scanning electron microscope Alloy chemistry.chemical_element 02 engineering and technology engineering.material Electrochemistry lcsh:Technology 01 natural sciences Corrosion law.invention mg97zn1y2-1wt.%sic corrosion rate corrosion morphology corrosion mechanism Optical microscope law lcsh:Manufactures Phase (matter) 0103 physical sciences Materials Chemistry 010302 applied physics lcsh:T Magnesium Metallurgy Metals and Alloys 021001 nanoscience & nanotechnology Microstructure chemistry engineering 0210 nano-technology lcsh:TS1-2301 |
| Zdroj: | China Foundry, Vol 18, Iss 1, Pp 68-74 (2021) |
| ISSN: | 2365-9459 1672-6421 |
| Popis: | To explore the corrosion properties of magnesium alloys, the chemical behavior of a high strength Mg97Zn1Y2-1wt.%SiC alloy in different corrosion environments was studied. Three solutions of 0.2 mol·L-1 NaCl, Na2SO4 and NaNO3 were selected as corrosion solutions. The microstructures, corrosion rate, corrosion potential, and mechanism were investigated qualitatively and quantitatively by optical microscopy (OM), scanning electron microscopy (SEM), immersion testing experiment, and electrochemical test. Microstructure observation shows that the Mg97Zn1Y2-1wt.%SiC alloy is composed of α-Mg matrix, LPSO (Mg12ZnY) phase and SiC phase. The hydrogen evolution and electrochemical test results reflect that the Mg97Zn1Y2-1wt.%SiC in 0.2 mol·L-1 NaCl solution has the fastest corrosion rate, followed by Na2SO4 and NaNO3 solutions, and that the charge-transfer resistance presents the contrary trend and decreases in turn. |
| Databáze: | OpenAIRE |
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