Suh, Jin-Yoo Conner, R. Dale Kim, C. Paul Demetriou, Marios D. Johnson, William L. 2024-01-20T19:31:04Z 2024-01-20T19:31:04Z 2021-09-02 2010-05 0884-2914 https://pubs.kist.re.kr/handle/201004/131492 Fracture surfaces of Zr-based bulk metallic glasses of various compositions tested in the as-cast and annealed conditions were analyzed using scanning electron microscopy The tougher samples have shown highly jagged patterns at the beginning stage of crack propagation, and the length and roughness of this jagged pattern correlate well with the measured fracture toughness values. These jagged patterns, the main source of energy dissipation in the sample, are attributed to the formation of shear bands inside the sample. This observation provides strong evidence of significant "plastic zone" screening at the crack tip English CAMBRIDGE UNIV PRESS NI-CU-BE FATIGUE-CRACK-PROPAGATION AMORPHOUS ALLOY MECHANISMS BEHAVIOR FLOW DEFORMATION GROWTH PLATES Correlation between fracture surface morphology and toughness in Zr-based bulk metallic glasses Article 10.1557/JMR.2010.0112 1 JOURNAL OF MATERIALS RESEARCH, v.25, no.5, pp.982 - 990 JOURNAL OF MATERIALS RESEARCH 25 5 982 990 scie scopus 000277189500024 2-s2.0-77958145458 Materials Science, Multidisciplinary Materials Science Article NI-CU-BE FATIGUE-CRACK-PROPAGATION AMORPHOUS ALLOY MECHANISMS BEHAVIOR FLOW DEFORMATION GROWTH PLATES amorphous metal metallic glass fracture fracture surface shear band