Study on the embrittlement of flash annealed Fe_(85.2)B_(9.5)P_4Cu_(0.8)Si_(0.5) metallic glass ribbons

摘要

Nanocrystalline Fe-based alloys have excellent soft magnetic properties, but their application is limited due to annealing induced embrittlement. In this work the embrittlement of flash annealed Fe85.2Si0.5B9.(5) P4Cu0.8 (at.%) ribbons was investigated using two-point bending and tensile tests as well as nanoindentation testing. In addition, fracture surfaces of notched tensile specimens were analyzed in dependence on annealing temperature and correlated to mechanical and structural transitions.