High temperature deformation behavior of Mg67Zn28Ca5 metallic glass and its composites

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

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Author(s)

  • X.L. Fu
  • M.J. Tan
  • Y. Chen
  • A. E. W. Jarfors
  • M. Gupta

Detail(s)

Original languageEnglish
Pages (from-to)1-7
Journal / PublicationMaterials Science & Engineering A
Volume621
Online published24 Oct 2014
Publication statusPublished - 5 Jan 2015

Link(s)

DOI

DOI
Check@CityULib
Link to Scopus https://www.scopus.com/record/display.uri?eid=2-s2.0-84911427571&origin=recordpage
Permanent Link https://scholars.cityu.edu.hk/en/publications/publication(b30ed3b8-66d1-4bd5-880b-90f56c2895bc).html

Abstract

Mg67Zn28Ca5 amorphous alloy specimens with various volume percentage of crystalline phases were obtained by annealing fully amorphous alloy at slightly above crystallization temperature. Strain rate effect of flow stress of Mg67Zn28Ca5 amorphous alloy and its composites at supercooled liquid region were studied. The strain rate sensitivity m for monolithic metallic glass can approach 1, but all the composites have lower strain rate sensitivity (~0.17). After a prolonged testing period, the deformation mode of Mg67Zn28Ca5 based composites changed from superplastically into fragmentation mode. Glassy Mg67Zn28Ca5 exhibits the best superplasticity and thermal stability compared to its devitrified composites.

Research Area(s)

  • Composites, Glasses, Heat treatment, Mechanical properties at high temperatures, Metallic, Microstructure

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Publication fingerprints text

100
Deformation Behavio... Engineering
100
Strain Rate Sensiti... Engineering
100
Amorphous Metal Material Science
100
Composite Material Material Science
60
Amorphous Alloys Material Science
50
Flow Stress Engineering
50
Deformation Mode Engineering
50
Crystalline Phase Engineering
50
Lower Strain Rate Engineering
50
Strain Rate Effect Engineering
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Citation Format(s)

[ RIS ] [ BibTeX ]
High temperature deformation behavior of Mg67Zn28Ca5 metallic glass and its composites. / Fu, X.L.; Tan, M.J.; Chen, Y. et al.
In: Materials Science & Engineering A, Vol. 621, 05.01.2015, p. 1-7.

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review