Abstract
In this study, a novel series of Ti-based bulk metallic glass composites has been developed, exhibiting high specific strength and significant ductility (fracture strain exceeding 11 %). The TRIP effect of these composites was promoted by oxygen microalloying, ensuring uniform deformation under tensile loading. The outstanding mechanical properties could be attributed to the well-controlled metastability of the β phase, as well as the increased volume fraction and variants of martensite, effectively coordinating the micro-strain. It demonstrates that well-designed composition could significantly enhance the TRIP effect and ductility of bulk metallic glass composites, and prevent premature failure while preserving strength.
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