|About this Abstract
||2022 TMS Annual Meeting & Exhibition
||Bulk Metallic Glasses XIX
||Shear fracture in bulk metallic glass composites
||Ramamurty Upadrasta, Devashish Rajpoot, R.L. Narayan, Parag Tandaiya, Long Zhang
|On-Site Speaker (Planned)
Fracture behavior of bulk metallic glass matrix composites (BMGCs) with both transforming and non-transforming β-Ti dendrites under shear and opening modes was examined. Experimental results show that the fracture toughness of all three BMGCs is considerably lower in mode II than in mode I. However, stable crack growth in mode I is insignificant whereas it is considerable in mode II. The toughness of BMGCs reinforced with coarse but non-transforming dendrites in both the modes is higher than the respective values in BMGCs with transforming β-Ti. Fracture surface features and shear band patterns at notch tips indicate that the fracture criterion and mechanism of BMGCs is identical to that in BMGs. Implications of these results in terms improving the fracture toughness of BMGCs with transforming dendrites will be discussed.
||Mechanical Properties, Other,