Investigation of thermal residual stresses in tungsten-fiber/bulk metallic glass matrix composites

Danut Dragoi*, Ersan Üstündag, Bjorn Clausen, Mark A.M. Bourke

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

61 Citations (Scopus)

Abstract

Neutron diffraction and finite element (FE) modeling are used to investigate the thermal residual stress in W-fiber/bulk metallic glass-matrix composites. Results show that the W fibers are severely textured having a 〈1 1 0〉 texture along fiber axis. An elastic FE model predicts the thermal residual stresses. This suggests that both the fibers and the matrix effectively behave as elastic materials.

Original languageEnglish
Pages (from-to)245-252
Number of pages8
JournalScripta Materialia
Volume45
Issue number2
DOIs
Publication statusPublished - 31 Jul 2001
Externally publishedYes

Funding

This study was supported by the Army Research Office (grant no. DAAD19-00-1-0379) and the National Science Foundation (CAREER Award 9985264). It also benefited from the national user facility at the Lujan Center (at LANSCE) supported by the US Department of Energy under contract W-7405-ENG-36. Helpful discussions with Professor W.L. Johnson (Caltech) on BMGs and Dr. R.B. von Dreele (LANSCE) on the use of the GSAS program are appreciated.

FundersFunder number
US Department of EnergyW-7405-ENG-36
Army Research OfficeDAAD19-00-1-0379
National Science Foundation9985264

    Keywords

    • Metallic glasses
    • Neutron scattering
    • Non-destructive evaluation
    • Shear bands
    • Thermal expansion

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