Approaching "stainless magnesium" by Ca micro-alloying
Severe corrosion of Mg and Mg alloys is a major issue hindering their wider application in transportation industry, medical implants and aqueous batteries. Previously, no Mg-based material has been found with a significantly lower corrosion rate than that of ultra-high-purity Mg, i.e. 0.25 mm y-1 in concentrated NaCl solution. In this work for the first time, highly corrosion-resistant Mg is found to be accomplishable by Ca micro-alloying, bringing "stainless Mg" closer. The designed Mg-Ca lean alloys possess incredibly low corrosion rates, less than 0.1 mm y-1 in 3.5 wt% NaCl solution, which are significantly lower than that of ultra-high-purity Mg and all Mg alloys reported thus far. The outstanding corrosion resistance is attributed to inhibition of cathodic water reduction kinetics, impurities stabilizing and a protective surface film induced by Ca micro-alloying. Combined with the environmental benignity and economic viability, Ca micro-alloying renders huge feasibility on developing advanced Mg-based materials for diverse applications.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2021 |
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| Erschienen: |
2021 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:8 |
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| Enthalten in: |
Materials horizons - 8(2021), 2 vom: 01. Feb., Seite 589-596 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Deng, Min [VerfasserIn] |
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| Links: |
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| Themen: |
Alloys |
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| Anmerkungen: |
Date Completed 31.01.2022 Date Revised 31.01.2022 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.1039/d0mh01380c |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM33358449X |
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| 500 | |a Date Revised 31.01.2022 | ||
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| 500 | |a Citation Status MEDLINE | ||
| 520 | |a Severe corrosion of Mg and Mg alloys is a major issue hindering their wider application in transportation industry, medical implants and aqueous batteries. Previously, no Mg-based material has been found with a significantly lower corrosion rate than that of ultra-high-purity Mg, i.e. 0.25 mm y-1 in concentrated NaCl solution. In this work for the first time, highly corrosion-resistant Mg is found to be accomplishable by Ca micro-alloying, bringing "stainless Mg" closer. The designed Mg-Ca lean alloys possess incredibly low corrosion rates, less than 0.1 mm y-1 in 3.5 wt% NaCl solution, which are significantly lower than that of ultra-high-purity Mg and all Mg alloys reported thus far. The outstanding corrosion resistance is attributed to inhibition of cathodic water reduction kinetics, impurities stabilizing and a protective surface film induced by Ca micro-alloying. Combined with the environmental benignity and economic viability, Ca micro-alloying renders huge feasibility on developing advanced Mg-based materials for diverse applications | ||
| 650 | 4 | |a Journal Article | |
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| 700 | 1 | |a Wang, Linqian |e verfasserin |4 aut | |
| 700 | 1 | |a Höche, Daniel |e verfasserin |4 aut | |
| 700 | 1 | |a Lamaka, Sviatlana V |e verfasserin |4 aut | |
| 700 | 1 | |a Wang, Cheng |e verfasserin |4 aut | |
| 700 | 1 | |a Snihirova, Darya |e verfasserin |4 aut | |
| 700 | 1 | |a Jin, Yiming |e verfasserin |4 aut | |
| 700 | 1 | |a Zhang, Yuhui |e verfasserin |4 aut | |
| 700 | 1 | |a Zheludkevich, Mikhail L |e verfasserin |4 aut | |
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