Compressive deformation of in situ formed bulk metallic glass composites

B. Clausen; S. Y. Lee; E. Üstündag; C. P. Kim; D. W. Brown; M. A.M. Bourke

doi:10.1016/j.scriptamat.2005.10.009

Compressive deformation of in situ formed bulk metallic glass composites

B. Clausen, S. Y. Lee, E. Üstündag^*, C. P. Kim, D. W. Brown, M. A.M. Bourke

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

15 Citations (Scopus)

Abstract

A bulk metallic glass matrix composite with dendritic second phase precipitates was investigated using neutron diffraction and self-consistent modeling (SCM) to ascertain its deformation mechanisms. The compressive behavior of both the composite and the second phase (in its monolithic form) were investigated. The diffraction data were compared to the predictions of a new SCM resulting in good agreement. For the first time, this model considered both amorphous and crystalline phases and allowed the calculation of single crystal elastic constants from polycrystalline diffraction data. It was shown that the ductile second phase yielded first upon loading, and this was followed by multiple shear band formation in the matrix, a process which enhanced the ductility of the composite.

Original language	English
Pages (from-to)	343-347
Number of pages	5
Journal	Scripta Materialia
Volume	54
Issue number	3
DOIs	https://doi.org/10.1016/j.scriptamat.2005.10.009
Publication status	Published - Feb 2006
Externally published	Yes

Funding

This study was funded by the National Science Foundation (CAREER Award DMR-9985264). The Lujan Center is a national user facility funded by the United States Department of Energy, Office of Basic Energy Sciences under contract number W-7405-ENG-36 with the University of California.

Funders	Funder number
Office of Basic Energy Sciences	W-7405-ENG-36
United States Department of Energy
National Science Foundation	DMR-9985264
University of California

Keywords

Composites
Mechanical properties
Metallic glass
Neutron diffraction
Self-consistent modeling

Access to Document

10.1016/j.scriptamat.2005.10.009

Cite this

@article{a45dd25c80444d8bb83df7dde8a7cb60,

title = "Compressive deformation of in situ formed bulk metallic glass composites",

abstract = "A bulk metallic glass matrix composite with dendritic second phase precipitates was investigated using neutron diffraction and self-consistent modeling (SCM) to ascertain its deformation mechanisms. The compressive behavior of both the composite and the second phase (in its monolithic form) were investigated. The diffraction data were compared to the predictions of a new SCM resulting in good agreement. For the first time, this model considered both amorphous and crystalline phases and allowed the calculation of single crystal elastic constants from polycrystalline diffraction data. It was shown that the ductile second phase yielded first upon loading, and this was followed by multiple shear band formation in the matrix, a process which enhanced the ductility of the composite.",

keywords = "Composites, Mechanical properties, Metallic glass, Neutron diffraction, Self-consistent modeling",

author = "B. Clausen and Lee, {S. Y.} and E. {\"U}st{\"u}ndag and Kim, {C. P.} and Brown, {D. W.} and Bourke, {M. A.M.}",

year = "2006",

month = feb,

doi = "10.1016/j.scriptamat.2005.10.009",

language = "English",

volume = "54",

pages = "343--347",

journal = "Scripta Materialia",

issn = "1359-6462",

publisher = "Acta Materialia Inc",

number = "3",

}

TY - JOUR

T1 - Compressive deformation of in situ formed bulk metallic glass composites

AU - Clausen, B.

AU - Lee, S. Y.

AU - Üstündag, E.

AU - Kim, C. P.

AU - Brown, D. W.

AU - Bourke, M. A.M.

PY - 2006/2

Y1 - 2006/2

N2 - A bulk metallic glass matrix composite with dendritic second phase precipitates was investigated using neutron diffraction and self-consistent modeling (SCM) to ascertain its deformation mechanisms. The compressive behavior of both the composite and the second phase (in its monolithic form) were investigated. The diffraction data were compared to the predictions of a new SCM resulting in good agreement. For the first time, this model considered both amorphous and crystalline phases and allowed the calculation of single crystal elastic constants from polycrystalline diffraction data. It was shown that the ductile second phase yielded first upon loading, and this was followed by multiple shear band formation in the matrix, a process which enhanced the ductility of the composite.

AB - A bulk metallic glass matrix composite with dendritic second phase precipitates was investigated using neutron diffraction and self-consistent modeling (SCM) to ascertain its deformation mechanisms. The compressive behavior of both the composite and the second phase (in its monolithic form) were investigated. The diffraction data were compared to the predictions of a new SCM resulting in good agreement. For the first time, this model considered both amorphous and crystalline phases and allowed the calculation of single crystal elastic constants from polycrystalline diffraction data. It was shown that the ductile second phase yielded first upon loading, and this was followed by multiple shear band formation in the matrix, a process which enhanced the ductility of the composite.

KW - Composites

KW - Mechanical properties

KW - Metallic glass

KW - Neutron diffraction

KW - Self-consistent modeling

UR - http://www.scopus.com/inward/record.url?scp=27744432349&partnerID=8YFLogxK

U2 - 10.1016/j.scriptamat.2005.10.009

DO - 10.1016/j.scriptamat.2005.10.009

M3 - Article

AN - SCOPUS:27744432349

SN - 1359-6462

VL - 54

SP - 343

EP - 347

JO - Scripta Materialia

JF - Scripta Materialia

IS - 3

ER -

Compressive deformation of in situ formed bulk metallic glass composites

Abstract

Funding

Keywords

Access to Document

Other files and links

Fingerprint

Cite this