Self-fluxing amorphous Nickel-based alloys obtained by different techniques. Performance and technological difficulties

Abstract

Amorphous metal alloys can already be considered advanced structural materials. This structure induces specific properties such as: high mechanical resistance and hardness, high bending ductility, high elastic modulus, superior resistance to corrosion and wear or, depending on the chemical composition, exceptional magnetic properties. The family of self-fluxing alloys based on nickel has multiple applications: NiCrBSi powders are used with remarkable results in obtaining protective layers against corrosion and wear, strips and wires are successfully used as brazing alloys, etc. In this paper it is presented the research carried out for obtaining and characterizing the amorphous NiCrSiB ribbons, through the melt spinning technique and the massive products (bulks) from the same family through mold casting and additive manufacturing using the Selective Laser Melting (SLM) technique