Processing and properties of amorphous magnesium-based eco-materials

• Magnesium alloys are the lightest known structural material and have been very attractive for usage in marine and transportation industry (for its weight savings and payload increase), and also for its portability in hand-held devices. It is recyclable and one of the most abundant metal. Lately, it has gained attention for its biocompatibility, and also its biodegradable properties depending on the alloying elements. They can be used as a biomaterial in various applications from heart stents to implant screws and fixtures. In this work, amorphous magnesium alloys have been processed, based on its glass forming ability, by various techniques in order to obtain its amorphous state, and the microstructure are characterized by thermal analysis, X-ray diffraction and electron microscopy. Their mechanical properties are also presented. High temperature tensile tests show similar strength to room temperature strength, while the total failure strain is significantly increased from around 0.5% to 10%.

Ämnesord

TEKNIK OCH TEKNOLOGIER  -- Materialteknik (hsv//swe)

ENGINEERING AND TECHNOLOGY  -- Materials Engineering (hsv//eng)

Nyckelord

Amorphous

Ductility

Eco-materials

Magnesium

Mechanical properties

Amorphous state

Failure strain

Glass forming ability

Hand-held devices

High temperature tensile tests

Room temperature

Transportation industry

Weight saving

Alloying elements

Amorphous alloys

Biocompatibility

Biological materials

Magnesium alloys

Materials handling

Tensile strength

Tensile testing

Thermoanalysis

X ray diffraction

X ray diffraction analysis

Amorphous materials

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