Oxygen effect on bending behavior of a zirconium based bulk metallic glass
Source abstract
Abstract
Abstract In this work we report a systematic study regarding the effect of different oxygen contents (150 – 2000 wppm) on the microstructure and mechanical properties of the commercial bulk metallic glass Vitreloy® 106a (Zr58.5Nb2.8Cu15.6Ni12.8Al10.3). Scanning electron microscopy (SEM) analyses and Synchrotron X-ray diffraction patterns have confirmed the presence of crystalline precipitates dispersed in the amorphous matrix for samples contaminated with more than 900 wppm of oxygen. Three-point bending tests and fracture surface SEM investigations have shown that the brittle phases formed combined with the oxygen contamination of the matrix resulted in a significative fracture resistance reduction as well as ductility loss following the increase of oxygen content.
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Research context
OpenAlex topics: Metallic Glasses and Amorphous Alloys · Glass properties and applications
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