Corrosion properties of Mg-Zn-Ca-(Cu,Au) metallic glasses in artificial physiological fluid
| Autor: | Ryszard Nowosielski, Katarzyna Cesarz-Andraczke, Rafał Babilas |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Amorphous metal
Materials science Structural material Mechanical Engineering Alloy Metallurgy 020101 civil engineering 02 engineering and technology engineering.material 0201 civil engineering Corrosion Cathodic protection 020303 mechanical engineering & transports 0203 mechanical engineering engineering Hydrogen evolution Physiological fluid Polarization (electrochemistry) Civil and Structural Engineering |
| Zdroj: | Archives of Civil and Mechanical Engineering. 19:716-723 |
| ISSN: | 1644-9665 |
| DOI: | 10.1016/j.acme.2019.02.008 |
| Popis: | The Mg-Zn-Ca-(Cu,Au) alloys were considered as resorbable materials for orthopedic short-term implants. The aim of this paper was to determine the influence of Au and Cu addition on corrosion properties of Mg69Zn25Ca5Au1, Mg69Zn25Ca5Au0.5Cu0.5 and Mg69Zn25Ca5Cu1 metallic glasses. The analysis of corrosion results allowed to describe the influence of 0.5 and 1 at.% of Au and Cu on the corrosion resistance in artificial physiological fluid. The Mg69Zn25Ca5Au0.5Cu0.5 and Mg69Zn25Ca5Cu1 metallic glasses exhibit lower corrosion resistance in comparison with Mg69Zn25Ca5Au1 alloy. The increase of Cu content caused the increase of hydrogen evolution volume and the high cathodic activity. The Mg69Zn25Ca5Au1 metallic glass shows the decrease of hydrogen evolution volume and manifests the low corrosion current density and the high polarization resistance, indicating the high corrosion resistance. |
| Databáze: | OpenAIRE |
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