Mitigating the detrimental effects of galvanic corrosion by nanoscale composite architecture design
Abstract Widespread application of magnesium (Mg) has been prevented by its low strength and poor corrosion resistance. Core of this limitation is Mg’s low electrochemical potential and low solubility for most elements, favoring secondary phase precipitation acting as effective micro-galvanic elemen...
| Main Authors: | , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2022-06-01
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| Series: | npj Materials Degradation |
| Online Access: | https://doi.org/10.1038/s41529-022-00256-y |
| _version_ | 1811243775963430912 |
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| author | Oliver Renk Irmgard Weißensteiner Martina Cihova Eva-Maria Steyskal Nicole G. Sommer Michael Tkadletz Stefan Pogatscher Patrik Schmutz Jürgen Eckert Peter J. Uggowitzer Reinhard Pippan Annelie M. Weinberg |
| author_facet | Oliver Renk Irmgard Weißensteiner Martina Cihova Eva-Maria Steyskal Nicole G. Sommer Michael Tkadletz Stefan Pogatscher Patrik Schmutz Jürgen Eckert Peter J. Uggowitzer Reinhard Pippan Annelie M. Weinberg |
| author_sort | Oliver Renk |
| collection | DOAJ |
| description | Abstract Widespread application of magnesium (Mg) has been prevented by its low strength and poor corrosion resistance. Core of this limitation is Mg’s low electrochemical potential and low solubility for most elements, favoring secondary phase precipitation acting as effective micro-galvanic elements. Mg-based metal–metal composites, while benefiting strength, are similarly active galvanic couples. We show that related detrimental corrosion susceptibility is overcome by nanoscale composite architecture design. Nanoscale phase spacings enable high-strength Mg–Fe composites with degradation rates as low as ultra-high purity Mg. Our concept thus fundamentally changes today’s understanding of Mg’s corrosion and significantly widens the property space of Mg-based materials. |
| first_indexed | 2024-04-12T14:14:23Z |
| format | Article |
| id | doaj.art-9386789f67174e83ad08d1703b0d5260 |
| institution | Directory Open Access Journal |
| issn | 2397-2106 |
| language | English |
| last_indexed | 2024-04-12T14:14:23Z |
| publishDate | 2022-06-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | npj Materials Degradation |
| spelling | doaj.art-9386789f67174e83ad08d1703b0d52602022-12-22T03:29:47ZengNature Portfolionpj Materials Degradation2397-21062022-06-01611910.1038/s41529-022-00256-yMitigating the detrimental effects of galvanic corrosion by nanoscale composite architecture designOliver Renk0Irmgard Weißensteiner1Martina Cihova2Eva-Maria Steyskal3Nicole G. Sommer4Michael Tkadletz5Stefan Pogatscher6Patrik Schmutz7Jürgen Eckert8Peter J. Uggowitzer9Reinhard Pippan10Annelie M. Weinberg11Erich Schmid Institute of Materials Science, Austrian Academy of SciencesChristian Doppler Laboratory for Advanced Aluminum Alloys, Chair of Nonferrous Metallurgy, Montanuniversität LeobenSNSF Postdoctoral FellowInstitute of Materials Physics, Graz University of TechnologyDepartment of Orthopedics and Traumatology, Medical University of GrazDepartment of Materials Science, Chair of Functional Materials and Materials Systems, Montanuniversität LeobenChair of Nonferrous Metallurgy, Montanuniversität LeobenLaboratory for Joining Technologies and Corrosion; Empa, Swiss Federal Laboratories for Materials Science and TechnologyErich Schmid Institute of Materials Science, Austrian Academy of SciencesChair of Nonferrous Metallurgy, Montanuniversität LeobenErich Schmid Institute of Materials Science, Austrian Academy of SciencesDepartment of Orthopedics and Traumatology, Medical University of GrazAbstract Widespread application of magnesium (Mg) has been prevented by its low strength and poor corrosion resistance. Core of this limitation is Mg’s low electrochemical potential and low solubility for most elements, favoring secondary phase precipitation acting as effective micro-galvanic elements. Mg-based metal–metal composites, while benefiting strength, are similarly active galvanic couples. We show that related detrimental corrosion susceptibility is overcome by nanoscale composite architecture design. Nanoscale phase spacings enable high-strength Mg–Fe composites with degradation rates as low as ultra-high purity Mg. Our concept thus fundamentally changes today’s understanding of Mg’s corrosion and significantly widens the property space of Mg-based materials.https://doi.org/10.1038/s41529-022-00256-y |
| spellingShingle | Oliver Renk Irmgard Weißensteiner Martina Cihova Eva-Maria Steyskal Nicole G. Sommer Michael Tkadletz Stefan Pogatscher Patrik Schmutz Jürgen Eckert Peter J. Uggowitzer Reinhard Pippan Annelie M. Weinberg Mitigating the detrimental effects of galvanic corrosion by nanoscale composite architecture design npj Materials Degradation |
| title | Mitigating the detrimental effects of galvanic corrosion by nanoscale composite architecture design |
| title_full | Mitigating the detrimental effects of galvanic corrosion by nanoscale composite architecture design |
| title_fullStr | Mitigating the detrimental effects of galvanic corrosion by nanoscale composite architecture design |
| title_full_unstemmed | Mitigating the detrimental effects of galvanic corrosion by nanoscale composite architecture design |
| title_short | Mitigating the detrimental effects of galvanic corrosion by nanoscale composite architecture design |
| title_sort | mitigating the detrimental effects of galvanic corrosion by nanoscale composite architecture design |
| url | https://doi.org/10.1038/s41529-022-00256-y |
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