Effect of the metallic glass volume fraction on the mechanical properties of Zr-based metallic glass reinforced with porous W composite

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • X. Q. Zhang
  • L. Wang
  • Y. F. Xue
  • X. W. Cheng
  • Y. D. Wang
  • Z. H. Nie
  • H. F. Zhang
  • H. M. Fu
  • L. L. Ma

Detail(s)

Original languageEnglish
Pages (from-to)152-158
Journal / PublicationMaterials Science and Engineering A
Volume561
Publication statusPublished - 20 Jan 2013
Externally publishedYes

Abstract

The mechanical properties of both as-cast and as-extruded Zr-based metallic glass reinforced with tungsten composites with 33, 28, and 21 vol. % of metallic glass were investigated under quasi-static compression at strain rates from 10-4s-1 to 10-1s-1. These two types of composites exhibited a strain rate sensitivity exponent that increased with the increase of the tungsten volume fraction. Compared to the composites with 33 and 21 vol. % of the metallic glass, the two types of composites with 28 vol. % of the metallic glass phase exhibited superior fracture energies. The in-situ compression test on the as-cast composites using high-energy synchrotron X-ray diffraction (HEXRD) revealed that the yield stress of the tungsten phase increased with a decrease in the metallic glass volume fraction. The as-cast composite with 28 vol. % of the metallic glass exhibited relatively great mechanical properties compared to the composites that contained 33 and 21 vol. % of the metallic glass. This result was attributed to the great coupling of the load distribution between the two phases and the high lattice strain in the tungsten phase. © 2012 Elsevier B.V.

Research Area(s)

  • Composite, High energy X-ray diffraction (HEXRD), Metallic glass, Porous tungsten, Strain rate, Volume fraction

Bibliographic Note

Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to lbscholars@cityu.edu.hk.

Citation Format(s)

Effect of the metallic glass volume fraction on the mechanical properties of Zr-based metallic glass reinforced with porous W composite. / Zhang, X. Q.; Wang, L.; Xue, Y. F. et al.
In: Materials Science and Engineering A, Vol. 561, 20.01.2013, p. 152-158.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review