Kim, C. Paul Suh, Jin-Yoo Wiest, Aaron Lind, Mary Laura Conner, R. Dale Johnson, William L. 2024-01-20T22:04:18Z 2024-01-20T22:04:18Z 2021-09-01 2009-01 1359-6462 https://pubs.kist.re.kr/handle/201004/132857 Three new compositional variants of the Zr-Ti-Be-LTM (late transition metal) family of metallic glasses are discussed. Thermal stability Delta T=T-x-T-g, was increased from 82 degrees C for Zr41.2Ti13.8Cu12.5Ni10Be22.5 (Viterloy 1) to 141 degrees C for Zr44Ti11Cu20Be25. It is found that fracture toughness is the most distinguishing parameter characterizing the alloys in contrast to other mechanical properties. Quaternary alloys consistently had fracture toughness values exceeding 80 MPa m(1/2), while for Vitreloy 1 K-Q = 48.5 MPa m(1/2) with a large amount of scatter. Adding iron reduced the fracture toughness to 25 MPa m(1/2). (C) 2008 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved. English PERGAMON-ELSEVIER SCIENCE LTD RESIDUAL-STRESSES BEHAVIOR FATIGUE RELAXATION ALLOY Fracture toughness study of new Zr-based Be-bearing bulk metallic glasses Article 10.1016/j.scriptamat.2008.09.001 1 SCRIPTA MATERIALIA, v.60, no.2, pp.80 - 83 SCRIPTA MATERIALIA 60 2 80 83 scie scopus 000263281000005 Nanoscience & Nanotechnology Materials Science, Multidisciplinary Metallurgy & Metallurgical Engineering Science & Technology - Other Topics Materials Science Metallurgy & Metallurgical Engineering Article RESIDUAL-STRESSES BEHAVIOR FATIGUE RELAXATION ALLOY Bulk amorphous materials Metallic glasses Fracture Toughness