Strength variation and cast defect distribution in metallic glasses

被引：33
|
作者：
Lee, C. J. [1 ]
Lai, Y. H. [1 ]
Huang, J. C. [1 ]
Du, X. H. [1 ,2 ]
Wang, L. [3 ]
Nieh, T. G. [3 ]
机构：
[1] Natl Sun Yat Sen Univ, Ctr Nanosci & Nanotechnol, Dept Mat & Optoelect Sci, Kaohsiung 804, Taiwan
[2] Shenyang Inst Aeronaut Engn, Dept Mat Engn, Shenyang 110034, Peoples R China
[3] Univ Tennessee, Dept Mat Sci & Engn, Knoxville, TN 37996 USA
来源：
SCRIPTA MATERIALIA | 2010年 / 63卷 / 01期
基金：
美国国家科学基金会;
关键词：
Metallic glasses; Cast defects; Weibull modulus; Strength; TRANSMISSION ELECTRON-MICROSCOPY; PROBABILITY ESTIMATORS; BULK; COMPRESSION; DIAMETER; PILLARS; SIZE;
D O I：
10.1016/j.scriptamat.2010.03.028
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The yield strengths of micropillars of four metallic glasses were measured and subsequently analyzed using Weibull statistics. It was found that the strength variation scaled with the occurrence frequency and volume fraction of cast defects resulting from insufficient castability. The current finding is related to the size effect in bulk and micropillar metallic glass specimens. We also offered a theoretical estimate of the critical size of casting flaws in metallic glasses, above which fracture is expected to initiate. (C) 2010 Published by Elsevier Ltd. on behalf of Acta Materialia Inc.
引用
收藏
页码：105 / 108
页数：4
相关论文
共 50 条
  • [1] Nanoscale defect clusters in metallic glasses
    Zetterstrom, P.
    Delaplane, R.
    Wang, Y. D.
    Liaw, P. K.
    Choo, H.
    Saksl, K.
    Zhang, H. F.
    Ren, Y.
    Zuo, L.
    [J]. JOURNAL OF PHYSICS-CONDENSED MATTER, 2007, 19 (37)
  • [2] METALLIC GLASSES CAST IN MAGNETIC-FIELD
    POTOCKY, L
    KISDIKOSZO, E
    LOVAS, A
    POGANY, L
    KREN, E
    KOVAC, J
    NOVAK, L
    KOLLAR, P
    [J]. JOURNAL DE PHYSIQUE, 1988, 49 (C-8): : 1315 - 1316
  • [3] A three-parameter Weibull statistical analysis of the strength variation of bulk metallic glasses
    Han, Z.
    Tang, L. C.
    Xu, J.
    Li, Y.
    [J]. SCRIPTA MATERIALIA, 2009, 61 (09) : 923 - 926
  • [4] Structural homology of the strength for metallic glasses
    Weiming Yang
    Xinfa Sun
    Haishun Liu
    Changfeng Yu
    Wenyu Li
    Akihisa Inoue
    Daniel ?opu
    Jürgen Eckert
    Chunguang Tang
    [J]. Journal of Materials Science & Technology, 2021, 81 (22) : 123 - 130
  • [5] HARDNESS/STRENGTH RATIO OF METALLIC GLASSES
    DAVIS, LA
    [J]. SCRIPTA METALLURGICA, 1975, 9 (04): : 431 - 435
  • [6] Structural homology of the strength for metallic glasses
    Yang, Weiming
    Sun, Xinfa
    Liu, Haishun
    Yu, Changfeng
    Li, Wenyu
    Inoue, Akihisa
    Sopu, Daniel
    Eckert, Jurgen
    Tang, Chunguang
    [J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY, 2021, 81 (81) : 123 - 130
  • [7] POSITRON STUDIES OF DEFECT STRUCTURES IN METALLIC GLASSES
    CARTIER, E
    HEINRICH, F
    GUNTHERODT, HJ
    [J]. PHYSICS LETTERS A, 1981, 81 (07) : 393 - 396
  • [8] DEFECT INTERACTIONS IN METALLIC GLASSES - ACOUSTIC PROBES
    COPPERSMITH, SN
    [J]. PHYSICAL REVIEW B, 1993, 48 (01): : 142 - 148
  • [9] Strength criterion and temperature dependent strength model of metallic glasses
    Zhang, Xianhe
    Li, Weiguo
    Deng, Yong
    Shao, Jiaxing
    Zhang, Xuyao
    Chen, Liming
    [J]. INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES, 2019, 163 : 242 - 251
  • [10] Strength softening at shear bands in metallic glasses
    Lei, Xianqi
    Wei, Yujie
    Hu, Zheng
    Wang, Wei-Hua
    [J]. PHILOSOPHICAL MAGAZINE LETTERS, 2013, 93 (04) : 221 - 230
12345