Abstract
Fe-based soft magnetic amorphous alloys represent the next generation of magnetic core materials and are expected to replace silicon steel sheets in many applications. An economical and fast methodology for the study of the plasticity and brittleness of this material is however necessary to permit its widespread use. Abrasive water jetting is a cold processing technique that has great potential for use in the fabrication and inspection of Fe-based amorphous alloy parts. However, research on this technique is currently lacking. In order to assess the plasticity and brittleness of Fe-based amorphous alloys by considering abrasive impacts, this work investigates the effect of impact speed and impact angle on the removal process in Fe-based amorphous alloys and establishes the corresponding abrasive erosion mechanism. It is found that Fe-based amorphous alloys exhibit four primary responses: shear slip, viscous flow, shear crack formation, and brittle fracture; the plasticity and brittleness of Fe-based amorphous alloys are assessed by considering the impact morphology and mechanism.
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