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1 Journal of Achievements in Materials and Manufacturing Engineering

1 2013

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Fabrication and properties of magnesium based alloys Mg-Ca

Nowosielski R., Gawlas-Mucha A., Borowski A., Guwer A.

Journal of Achievements in Materials and Manufacturing Engineering

2013

Vol. 61, nr 2

367--374

Purpose: The paper describes the preparation, structure and mechanical properties of magnesium based alloys with chemical composition of Mg-1 (wt%) Ca prepared in the form of ingot. Design/methodology/approach: The studied samples were prepared by the tubular resistance furnace melting in silicon crucible. The structure of the alloy was examined by X-ray diffractometry (phase analysis) and scanning electron microscope (chemical analysis of the micro-regions). Microhardness was measured using Vickers hardness testing machine with automatic track measurement. Microstructure was examined by optical light microscopy. Findings: The X-ray diffraction investigations have revealed that the studied cast ingot the two-phase alloy structure. Chemical analysis confirmed the expected chemical composition. Values of the microhardness tests of materials were compared before and after remelting. Practical implications: Magnesium alloys are new class of biodegradable materials other bioresorbable biomaterials for orthopedic applications. The potential benefits of ownership of Mg alloys are the closer modulus of elasticity to the bone than stainless steel or titanium, biocompatibility and bone- active properties and the elimination of necessity of a second operation to remove the implant body. Two- component Mg-Ca alloy is characterized in that a solid solution limit, and creates a stable intermetallic phase Mg2Ca. Originality/value: Fabrication and properties of magnesium based alloys to thermomechanical processing.