Influence of Processing Techniques on Microstructure and Mechanical Properties of a Biodegradable Mg-3Zn-2Ca AlloyReportar como inadecuado


Influence of Processing Techniques on Microstructure and Mechanical Properties of a Biodegradable Mg-3Zn-2Ca Alloy


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1

Faculty of Mechanical Engineering, Institute of Materials Science and Engineering, Brno University of Technology, Technická 2, Brno 616 69, Czech Republic

2

Institute of Physics of Materials, Academy of Sciences of the Czech Republic v. v. i., Žižkova 22, Brno 616 62, Czech Republic

3

Department of Physics of Materials, Faculty of Mathematics and Physics, Charles University in Prague, Ke Karlovu 5, Praha 121 16, Czech Republic

4

Department of Materials Forming, Faculty of Metallurgy and Materials Engineering, VŠB—Technical University of Ostrava, 17. listopadu 15, Ostrava 725 29, Czech Republic





*

Author to whom correspondence should be addressed.



Academic Editor: Regine Willumeit-Römer

Abstract New Mg-3Zn-2Ca magnesium alloy was prepared using different processing techniques: gravity casting as well as squeeze casting in liquid and semisolid states. Materials were further thermally treated; thermal treatment of the gravity cast alloy was additionally combined with the equal channel angular pressing ECAP. Alloy processed by the squeeze casting in liquid as well as in semisolid state exhibit improved plasticity; the ECAP processing positively influenced both the tensile and compressive characteristics of the alloy. Applied heat treatment influenced the distribution and chemical composition of present intermetallic phases. Influence of particular processing techniques, heat treatment, and intermetallic phase distribution is thoroughly discussed in relation to mechanical behavior of presented alloys. View Full-Text

Keywords: biodegradable magnesium alloy; Mg-Zn-Ca; squeeze casting; ECAP processing; microstructure; mechanical properties biodegradable magnesium alloy; Mg-Zn-Ca; squeeze casting; ECAP processing; microstructure; mechanical properties





Autor: Pavel Doležal 1,* , Josef Zapletal 1, Stanislava Fintová 2, Zuzanka Trojanová 3, Miroslav Greger 4, Pavla Roupcová 1,2 and Tomáš Podrábský 1

Fuente: http://mdpi.com/



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