Plastic deformation in a partially crystallized Zr-based BMG under Vickers indenter

Xie, Haowen, Li, Yuncang, Liao, Shuzhi, Hodgson, Peter and Wen, Cui'e 2009, Plastic deformation in a partially crystallized Zr-based BMG under Vickers indenter, Journal of alloys and compounds, vol. 484, no. 1-2, pp. 886-890, doi: 10.1016/j.jallcom.2009.05.066.

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Title Plastic deformation in a partially crystallized Zr-based BMG under Vickers indenter
Author(s) Xie, Haowen
Li, Yuncang
Liao, Shuzhi
Hodgson, Peter
Wen, Cui'e
Journal name Journal of alloys and compounds
Volume number 484
Issue number 1-2
Start page 886
End page 890
Total pages 5
Publisher Elsevier BV
Place of publication Amsterdam, Netherlands
Publication date 2009-09-18
ISSN 0925-8388
Keyword(s) amorphous materials
x-ray diffraction
crystal growth
thermal analysis
Summary Vickers indentations were carried out on an anneal-introduced partially crystallized Zr41Ti14Cu12.5 Ni10Be22.5 bulk metallic glass (BMG), and the evolution of the shear bands in this samplewas investigated and compared to the as-cast, aswell as the structurally relaxed counterparts. The results indicate that the plastic deformation in the partially crystallized BMG was accommodated by the semi-circular (primary) and radial (secondary) shear bands. A full crack or flake that was produced due to the spring back during the load removal was observed. The shear band density in the annealed alloy which was dispersed with crystalliteswas significantly lower than that of the as-cast alloy. The difference of the shear band features among the three kinds of alloy status, i.e., partially crystallized, structurally relaxed and as-cast alloys was discussed in terms of the free volume in the BMGs and the characteristics of nano-composites. It has been demonstrated that the plasticity for the three statuses of alloys queues in the descending order as the as-cast, annealed with partial crystallization, and annealed without crystallization.
Language eng
DOI 10.1016/j.jallcom.2009.05.066
Field of Research 091207 Metals and Alloy Materials
Socio Economic Objective 861206 Structural Metal Products
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
HERDC collection year 2009
Copyright notice ©2009, Elsevier
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