Electrochemical Properties of Advanced Metastable Alloys
Current main interest in the world-wide research on metastable alloys is devoted to the development of multicomponent metallic alloys capable of freezing into a bulk glassy state by application of conventional casting processes. Their amorphous structure yields highly interesting physical, mechanical and also electrochemical properties. The IFW Dresden has been working on the synthesis and property characterisation of bulk metallic glasses since 1993 and is among the leading groups in this field of research. Our group studies bulk metallic glasses (BMG’s) and bulk glass matrix composites (BMGC’s) on Zr-, Ti-, Mg-, Ni- and Fe-base with respect to their corrosion behaviour in different environments and to their reactivity for hydrogen evolution and hydrogen sorption. This comprises fundamental as well as application-relevant aspects.
Examples of recent investigations are:
Corrosion behaviour of bulk amorphous steel
Corrosion of bulk glass matrix composites
Electrochemical reactivity of 2-phase amorphous Ni-Nb-Y alloys
Stability of rapidly quenched Mg-based alloys
Passivity and filiform corrosion of a Mg-based bulk metallic glass
Effect of surface finishing on bulk metallic glass corrosion