Structure and shear deformation of metallic crystalline-amorphous interfaces
C Brandl, TC Germann, A Misra
ACTA MATERIALIA | PERGAMON-ELSEVIER SCIENCE LTD | Published : 2013
The structure and shear properties of crystalline-amorphous laminar nanocomposites are studied in an atomistic model of face-centered cubic copper with amorphous Cu46Zr54 bulk metallic glass in the quasi-static limit. The plastic shear deformation response is determined by the production and motion of interface dislocations at the crystalline-amorphous interface, which is closely linked to the structural and chemical transition from crystalline Cu to the amorphous Cu/Zr phase. The implication of interfacial shear are discussed in context of dislocation-interface interactions and co-deformation of a crystalline-amorphous nanocomposite. © 2013 Acta Materialia Inc. Published by Elsevier Ltd. Al..View full abstract
Awarded by National Nuclear Security Administration of the US Department of Energy
This work was fully supported by the US Department of Energy, Office of Science, Office of Basic Energy Sciences. Los Alamos National Laboratory is operated by LANS, LLC, for the National Nuclear Security Administration of the US Department of Energy under Contract DE-AC52-06NA25396. The authors thank R.G. Hoagland, D. Perez and J. Wang for fruitful discussions.