In situ SEM indentation of a Zr-based bulk metallic glass at elevated temperatures

被引：34
|
作者：
Wheeler, J. M. [1 ]
Raghavan, R. [1 ]
Michler, J. [1 ]
机构：
[1] EMPA Swiss Fed Labs Mat Sci & Technol, Lab Mech Mat & Nanostruct, CH-3602 Thun, Switzerland
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2011年 / 528卷 / 29-30期
关键词：
Electron microscopy; Nanoindentation; Bulk amorphous alloys; Shear bands; INSTRUMENTED INDENTATION; PRESSURE SENSITIVITY; PLASTIC-DEFORMATION; SERRATED FLOW; AMORPHOUS METALS; NANOINDENTATION; BEHAVIOR; DEPENDENCE;
D O I：
10.1016/j.msea.2011.08.057
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The elevated temperature indentation response of a Zr-based bulk metallic glass (BMG) was examined using a novel in situ SEM indentation system modified with tip and sample heating. Hardness was found to linearly increase with temperature from 7 GPa at 25 degrees C to 7.6 GPa at 200 degrees C, while the modulus remained constant within measurement accuracy. Adhesion between indenter and the BMG was observed to increase with increasing temperature. Both the number and pointed morphology of the surface shear offset displacements were found to decrease with increasing temperature. Conversely, the magnitude of the load drops/serrations in the load displacement curve was found to increase dramatically with temperature. The transitions from smooth to serrated flow were observed to fall within the temperature-strain rate ranges observed by other researchers in uniaxial compression. (C) 2011 Elsevier B.V. All rights reserved.
引用
收藏
页码：8750 / 8756
页数：7
相关论文
共 50 条
  • [1] Indentation creep behavior of a Zr-based bulk metallic glass
    Department of General Physics, Eötvös University, P.O.B. 32, Budapest, H-1518, Hungary
    不详
    Journal of Alloys and Compounds, 2007, 434-435 (SPEC. ISS.): : 75 - 78
  • [2] Indentation creep behavior of a Zr-based bulk metallic glass
    Fatay, D.
    Gubicza, J.
    Lendvai, J.
    JOURNAL OF ALLOYS AND COMPOUNDS, 2007, 434 : 75 - 78
  • [3] Ball indentation tests for a Zr-based bulk metallic glass
    Trichy, GR
    Scattergood, RO
    Koch, CC
    Murty, KL
    SCRIPTA MATERIALIA, 2005, 53 (12) : 1461 - 1465
  • [4] Deformation behaviors of Zr-based bulk metallic glass under impact indentation
    Shin, Hyung-Seop
    Chang, Soon-Nam
    Kim, Do Kyung
    INTERNATIONAL JOURNAL OF MODERN PHYSICS B, 2008, 22 (9-11): : 1775 - 1782
  • [5] Indenter Geometry Affecting Indentation Behaviors of the Zr-Based Bulk Metallic Glass
    Huang, Hu
    Zhao, Hongwei
    MATERIALS TRANSACTIONS, 2014, 55 (09) : 1400 - 1404
  • [6] Zr-based bulk metallic glass composite with in situ precipitated nanocrystals
    Zhu, Shengli
    Xie, Guoqiang
    Wang, Hao
    Yang, Xianjin
    Cui, Zhenduo
    Inoue, Akihisa
    JOURNAL OF ALLOYS AND COMPOUNDS, 2014, 586 : 155 - 158
  • [7] Wear behaviour of Zr-based in situ bulk metallic glass matrix composites
    X F WU
    G A ZHANG
    F F WU
    Bulletin of Materials Science, 2016, 39 : 703 - 709
  • [8] Wear behaviour of Zr-based in situ bulk metallic glass matrix composites
    Wu, X. F.
    Zhang, G. A.
    Wu, F. F.
    BULLETIN OF MATERIALS SCIENCE, 2016, 39 (03) : 703 - 709
  • [9] Tribological behaviors of Zr-based bulk metallic glass versus Zr-based bulk metallic glass under relative heavy loads
    Zhong, Hua
    Chen, Jun
    Dai, Luanyue
    Yue, Yun
    Zhang, Zhiwei
    Zhang, Xinyu
    Ma, Mingzhen
    Liu, Riping
    INTERMETALLICS, 2015, 65 : 88 - 93
  • [10] Enhanced plasticity of Zr-based bulk metallic glass composite by in situ formed β-Zr dendritics
    Sun G.
    Chen G.
    Chen G.
    Frontiers of Materials Science in China, 2007, 1 (1): : 114 - 119
12345