Alloying effects of iridium on glass formation and glass-forming ability of the Zr-Cu-Al system
Journal Article
·
· Journal of Materials Research
- University of Science and Technology, Beijing
- ORNL
Alloying effects of iridium on the glass formability (GFA) of the Zr-Ir-Cu-Al system have been investigated, and several new bulk metallic glasses (BMGs) with high GFA have been successfully developed. Additions of Ir in the Zr-Cu-Al system can yield a beneficial distribution in atomic sizes, but the strong chemical interaction of the Zr-Ir atomic pair limits the maximum addable Ir contents and the resultant GFA. Our analyses indicate that the optimum composition for alloying elements is determined by not only topological but also chemical factors. Phase competition upon solidification, rather than effects from individual affecting factors, dictates the GFA of BMG systems.
- Research Organization:
- Oak Ridge National Laboratory (ORNL)
- Sponsoring Organization:
- SC USDOE - Office of Science (SC)
- DOE Contract Number:
- AC05-00OR22725
- OSTI ID:
- 951929
- Journal Information:
- Journal of Materials Research, Journal Name: Journal of Materials Research Journal Issue: 5 Vol. 24; ISSN JMREEE; ISSN 0884-2914
- Country of Publication:
- United States
- Language:
- English
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