Impact of micro-alloying on the plasticity of Pd-based bulk metallic glasses
Nollmann N, Binkowski I, Schmidt V, Rösner H, Wilde G
Research article (journal) | Peer reviewedAbstract
Micro-alloying was performed using additions of Co and Fe to monolithic Pd40Ni40P20 bulk metallic glass. Compression tests showed a plastic strain of 13% for the Co addition (1 at.%), whereas the Fe addition (0.6 at.%) led to immediate failure after reaching the elastic limit. Plasticity is not reflected by the high Poisson's ratio of 0.4 since it remained unaffected by minor alloying. Applying the fictive temperature concept to analyze the impact of minor alloying suggests that the total amount of free volume frozen-in during vitrification is less important for the mechanical properties of bulk metallic glasses than its local distribution.
Details about the publication
Journal: Scripta Materialia
Volume: 111
Issue: null
Page range: 119-122
Status: Published
Release year: 2016
Language in which the publication is written: English
Link to the full text: http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84948710579&origin=inward
Keywords: Bulk metallic glass; Ductility; Mechanical properties; Plastic deformation; Shear bands
Authors from the University of Münster
| Binkowski, Isabelle | Professorship of Materials Physics (Prof. Wilde) |
| Hieronymus-Schmidt, Vitalij | Professorship of Materials Physics (Prof. Wilde) |
| Rösner, Harald | Professorship of Materials Physics (Prof. Wilde) |
| Wilde, Gerhard | Professorship of Materials Physics (Prof. Wilde) |