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| rdf:type
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| Description
| - As-cast Mg, Mg-1Zn, Mg-4Zn and Mg-6Zn (wt.%) alloys were studied in this work. The alloys were prepared by gravity casting into a metal mold. The average cooling rate was 500 K min-1. Structural analysis revealed the presence of zinc concentration gradients and a strong zinc super-saturation in the alfa-Mg phase. In the Mg-4Zn and Mg-6Zn alloys, an inter-dendritic MgZn phase was present. The alloys' Vickers hardness increased with increasing Zn-concentration from 25 HV10 (pure Mg) to 45 HV10 (Mg-6Zn). The corrosion rates were measured by exposure to simulated body fluid. The Mg-1Zn alloy showed the lowest corrosion rate of 0.08 mm/yr, which was significantly lower than the corrosion rates of pure Mg and AZ91HP alloys (0.5 and 0.6 mm/yr, respectively). Increasing the Zn concentration in Mg alloys increased the corrosion rate, and the as-cast Mg-6Zn alloy corroded quickly, at a rate of 3 mm/yr. The alloys were solution heat treated at 300 °C for 150 h. Structural analysis revealed a partial dissolution of the MgZn phase, precipitation of the MgZn phase in regions that were originally supersaturated with zinc, and homogenization of the alfa-Mg phase during the heat treatment process. The observed structural changes increased the corrosion resistance, particularly that of the Mg-6Zn alloy whose corrosion rate was reduced four-fold, to 0.8 mm/yr. The measured corrosion rates were related to the observed structural characteristics of the alloy materials.
- As-cast Mg, Mg-1Zn, Mg-4Zn and Mg-6Zn (wt.%) alloys were studied in this work. The alloys were prepared by gravity casting into a metal mold. The average cooling rate was 500 K min-1. Structural analysis revealed the presence of zinc concentration gradients and a strong zinc super-saturation in the alfa-Mg phase. In the Mg-4Zn and Mg-6Zn alloys, an inter-dendritic MgZn phase was present. The alloys' Vickers hardness increased with increasing Zn-concentration from 25 HV10 (pure Mg) to 45 HV10 (Mg-6Zn). The corrosion rates were measured by exposure to simulated body fluid. The Mg-1Zn alloy showed the lowest corrosion rate of 0.08 mm/yr, which was significantly lower than the corrosion rates of pure Mg and AZ91HP alloys (0.5 and 0.6 mm/yr, respectively). Increasing the Zn concentration in Mg alloys increased the corrosion rate, and the as-cast Mg-6Zn alloy corroded quickly, at a rate of 3 mm/yr. The alloys were solution heat treated at 300 °C for 150 h. Structural analysis revealed a partial dissolution of the MgZn phase, precipitation of the MgZn phase in regions that were originally supersaturated with zinc, and homogenization of the alfa-Mg phase during the heat treatment process. The observed structural changes increased the corrosion resistance, particularly that of the Mg-6Zn alloy whose corrosion rate was reduced four-fold, to 0.8 mm/yr. The measured corrosion rates were related to the observed structural characteristics of the alloy materials. (en)
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| Title
| - Structural and corrosion characterization of biodegradable Mg-Zn alloy castings
- Structural and corrosion characterization of biodegradable Mg-Zn alloy castings (en)
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| skos:prefLabel
| - Structural and corrosion characterization of biodegradable Mg-Zn alloy castings
- Structural and corrosion characterization of biodegradable Mg-Zn alloy castings (en)
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| skos:notation
| - RIV/60461373:22310/12:43894478!RIV13-GA0-22310___
|
| http://linked.open...avai/predkladatel
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| http://linked.open...avai/riv/aktivita
| |
| http://linked.open...avai/riv/aktivity
| - P(GBP108/12/G043), P(KAN300100801)
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| http://linked.open...iv/cisloPeriodika
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| http://linked.open...vai/riv/dodaniDat
| |
| http://linked.open...aciTvurceVysledku
| |
| http://linked.open.../riv/druhVysledku
| |
| http://linked.open...iv/duvernostUdaju
| |
| http://linked.open...titaPredkladatele
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| http://linked.open...dnocenehoVysledku
| |
| http://linked.open...ai/riv/idVysledku
| - RIV/60461373:22310/12:43894478
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| http://linked.open...riv/jazykVysledku
| |
| http://linked.open.../riv/klicovaSlova
| - casting; corrosion; biomaterials; magnesium alloys (en)
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| http://linked.open.../riv/klicoveSlovo
| |
| http://linked.open...odStatuVydavatele
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| http://linked.open...ontrolniKodProRIV
| |
| http://linked.open...i/riv/nazevZdroje
| - Kovové Materiály-Metallic Materials
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| http://linked.open...in/vavai/riv/obor
| |
| http://linked.open...ichTvurcuVysledku
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| http://linked.open...cetTvurcuVysledku
| |
| http://linked.open...vavai/riv/projekt
| |
| http://linked.open...UplatneniVysledku
| |
| http://linked.open...v/svazekPeriodika
| |
| http://linked.open...iv/tvurceVysledku
| - Kubásek, Jiří
- Vojtěch, Dalibor
- Pospíšilová, Iva
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| http://linked.open...ain/vavai/riv/wos
| |
| issn
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| number of pages
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| http://bibframe.org/vocab/doi
| |
| http://localhost/t...ganizacniJednotka
| |
| is http://linked.open...avai/riv/vysledek
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