Deteriorated corrosion performance of micro-alloyed Mg-Zn alloy after heat treatment and mechanical processing
| Autor: | Di Mei, Björn Wiese, Hong Yang, Carsten Blawert, Regine Willumeit, Yiming Jin, Min Deng, Frank Feyerabend, Jan Bohlen |
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| Rok vydání: | 2021 |
| Předmět: |
Materials science
Polymers and Plastics Magnesium Mechanical Engineering Alloy Metallurgy Metals and Alloys Intermetallic chemistry.chemical_element 02 engineering and technology Corrosion morphology Solution treatment engineering.material 010402 general chemistry 021001 nanoscience & nanotechnology Electrochemistry 01 natural sciences 0104 chemical sciences Corrosion chemistry Mechanics of Materials Materials Chemistry Ceramics and Composites engineering 0210 nano-technology |
| Zdroj: | Journal of Materials Science & Technology. 92:214-224 |
| ISSN: | 1005-0302 |
| DOI: | 10.1016/j.jmst.2021.04.005 |
| Popis: | The corrosion performances of the as-cast and solution-treated Mg-0.5Zn samples were investigated in 0.9% NaCl solution and compared. From the electrochemical measurement results and corrosion morphology observations, it is found that the corrosion resistance of Mg-0.5Zn deteriorated with the extension of solution treatment duration. The main reason was the formation of Fe-Si precipitates with higher Fe concentrations during heat treatment. The Fe-Si precipitates, especially the ones with high Fe contents influenced the corrosion initiation and propagation significantly. In regard of corrosion performance, the solution-treated and then extruded sample was also performing not as good as the cast and then directly extruded sample. |
| Databáze: | OpenAIRE |
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