Microstructural dependence of the incipient to homogeneous flow transition in metallic glass composites

被引:5
|
作者
Gentile, Jonathan M. [1 ]
Hofmann, Douglas C. [2 ]
Trelewicz, Jason R. [1 ,3 ]
机构
[1] SUNY Stony Brook, Dept Mat Sci & Chem Engn, Stony Brook, NY 11794 USA
[2] CALTECH, Jet Prop Lab, Pasadena, CA 91125 USA
[3] SUNY Stony Brook, Inst Adv Computat Sci, Stony Brook, NY 11794 USA
基金
美国国家科学基金会;
关键词
Metallic glass composites; Yield criteria; Shear localization; Flow transition; MATRIX COMPOSITES; PLASTIC-DEFORMATION; SERRATED FLOW; MECHANICAL-PROPERTIES; SHEAR BANDS; TENSILE; INDENTATION; DUCTILITY; BEHAVIOR; NANOINDENTATION;
D O I
10.1016/j.scriptamat.2020.06.066
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
As ductile derivatives of amorphous alloys, metallic glass composites balance high strength with the ability to mitigate catastrophic shear localization, which has long plagued monolithic metallic glasses. In this study, we employ a bonded-interface indentation technique coupled with strain field mapping to identify the governing yield criterion in metallic glass composites as a function of their microstructural length scales. A crossover from the shear plane to maximum shear stress yield criterion is uncovered at a crystalline fraction of approximately 60%, thus signaling an effective transition from incipient to homogeneous flow as the dominant deformation mode of the composite microstructure. (C) 2020 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码:32 / 36
页数:5
相关论文
共 50 条
  • [31] Microstructure and mechanical properties of metallic glass/metallic glass composites
    Lee, J. K.
    Kim, K. B.
    Lee, M. H.
    Kim, T. S.
    Bae, J. C.
    JOURNAL OF ALLOYS AND COMPOUNDS, 2009, 483 (1-2) : 286 - 288
  • [32] High hysteresis in a homogeneous metallic glass
    Branagan, DJ
    Meacham, BE
    McCallum, RW
    Dennis, KW
    Kramer, MJ
    JOURNAL OF APPLIED PHYSICS, 2003, 93 (10) : 7969 - 7971
  • [33] Rate Dependence of Serrated Flow During Nanoindentation of a Bulk Metallic Glass
    C A Schuh
    T. G. Nieh
    Y. Kawamura
    Journal of Materials Research, 2002, 17 : 1651 - 1654
  • [34] Rate dependence of serrated flow during nanoindentation of a bulk metallic glass
    Schuh, CA
    Nieh, TG
    Kawamura, Y
    JOURNAL OF MATERIALS RESEARCH, 2002, 17 (07) : 1651 - 1654
  • [35] TEMPERATURES OF GLASS-TRANSITION AND INCIPIENT DEFORMATION OF A GLASS SYSTEM
    AFONSKAYA, IA
    SAZONOVA, SI
    DOKLADY AKADEMII NAUK BELARUSI, 1976, 20 (07): : 603 - 606
  • [36] Evolution of hidden localized flow during glass-to-liquid transition in metallic glass
    Wang, Z.
    Sun, B. A.
    Bai, H. Y.
    Wang, W. H.
    NATURE COMMUNICATIONS, 2014, 5
  • [37] Evolution of hidden localized flow during glass-to-liquid transition in metallic glass
    Z. Wang
    B. A. Sun
    H. Y. Bai
    W. H. Wang
    Nature Communications, 5
  • [38] Inhomogeneous to homogeneous transition in an Au-based metallic glass and its deformation maps
    Song, S. X.
    Jang, J. S. C.
    Huang, J. C.
    Nieh, T. G.
    INTERMETALLICS, 2010, 18 (04) : 702 - 709
  • [39] Glass-reinforced hydroxyapatite composites: fracture toughness and hardness dependence on microstructural characteristics
    Lopes, MA
    Monteiro, FJ
    Santos, JD
    BIOMATERIALS, 1999, 20 (21) : 2085 - 2090
  • [40] HOMOGENEOUS FLOW IN METALLIC GLASSES
    PEREZ, J
    FOUQUET, F
    HE, Y
    PHYSICA STATUS SOLIDI A-APPLIED RESEARCH, 1982, 72 (01): : 289 - 300