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Plastic deformation in the annealed Zr41Ti14Cu12.5Ni10Be22.5 bulk metal glass under indenter
journal contribution
posted on 2009-05-01, 00:00 authored by Haowen Xie, Yuncang Li, Dengke Yang, Peter HodgsonPeter Hodgson, Cui'E WenVickers and nanoindentationswere carried out on an annealed Zr41Ti14Cu12.5Ni10Be22.5 bulk metallic glass (BMG), and the evolution of the shear bands in the annealed BMG was investigated and compared to that in the as-cast alloy. Results indicate that the plastic deformation in the BMG with the structure relaxation is accommodated by the semicircular (primary) and radial (secondary) as well as tertiary shear bands. Quantitatively, the shear band density in the annealed alloywas much lower than that in the as-cast alloy. The load-displacement curve of nanoindentation test for the annealed alloy exhibited a more flat serrated flow. The annihilation of free volume caused by the annealing was responsible for the embrittlement of the annealed sample.
History
Journal
Journal of alloys and compoundsVolume
475Issue
1-2Pagination
501 - 505Publisher
Elsevier B.V.Location
Amsterdam, NetherlandsPublisher DOI
ISSN
0925-8388eISSN
1873-4669Language
engPublication classification
C1 Refereed article in a scholarly journalCopyright notice
2008, Elsevier B.V.Usage metrics
Keywords
Bulk metallic glassShear bandVickers indentationPlastic deformationStructure relaxationScience & TechnologyPhysical SciencesTechnologyChemistry, PhysicalMaterials Science, MultidisciplinaryMetallurgy & Metallurgical EngineeringChemistryMaterials ScienceINSTRUMENTED INDENTATIONAMORPHOUS-ALLOYSSHEAR BANDSNANOINDENTATIONFLOWRELAXATIONCondensed Matter Physics
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