About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
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Bulk Metallic Glasses XX
|
Presentation Title |
Fracture Toughness of Bulk Metallic Glass Composites |
Author(s) |
Ramamurty Upadrasta, Devashish Rajpoot, Parag Tandaiya, R Lakshmi Narayan, Long Zhang |
On-Site Speaker (Planned) |
Ramamurty Upadrasta |
Abstract Scope |
Toughness of bulk metallic glass matrix composites (BMGCs) with both transforming and non-transforming β-Ti dendrites in different loading modes and at different temperatures was examined. In all cases, mode II toughness is considerably lower than in mode I, while 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 despite their ability to strain harden. The fracture criterion and mechanism of BMGCs is identical to that in BMGs. was found to be brittle when cast in a large size. Additionally, results of the experiments conducted to investigate the embrittlement of a β-Ti dendrite reinforced Zr-based BMGC and the effectiveness of the cryothermal cycling treatment in restoring the mode I toughness will be presented. |
Proceedings Inclusion? |
Planned: |
Keywords |
Composites, Mechanical Properties, Other |