Abstract
We have shown that 1 MeV Ni+ ion irradiation can cause nanocrystal formation in Ni52.5Nb10Zr15Ti 15Pt7.5 metallic glass (MG). The process requires precipitate formation and subsequent crystal growth within the precipitates. Temperature evolution modeling of damage cascades suggests a locally melted region within the damage cascade with substantial temperature gradients and rapid energy dissipation, with a quenching rate much larger than MG's critical cooling rate. Thus, the damage cascade regions do not directly develop nanocrystals.
Original language | English |
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Pages (from-to) | 1045-1048 |
Number of pages | 4 |
Journal | Scripta Materialia |
Volume | 63 |
Issue number | 11 |
DOIs | |
Publication status | Published - 2010 Nov |
Keywords
- Crystallization
- Finite element analysis
- Ion irradiation
- Metallic glass
ASJC Scopus subject areas
- Materials Science(all)
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering
- Metals and Alloys