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Investigation on Correlation between the Modified Criterion and the Glass-Forming Ability for Metallic Glasses

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Abstract:

A modified criterion γ’ (=Tx/(1.5Tg+Tl) of glass-forming ability (GFA) for metallic glasses is suggested on the basis of present criterion γ (=Tx/(Tg+Tl) that correlates well with some systems including metallic glasses, some glassy oxides and some cryo-protective aqueous solutions. Results show that the modified criterion γ’ shows stronger correlation with the critical cooling rate Rc for metallic glasses than the criterion γ, which is demonstrated by a value increase in the statistical correlation parameter R2 from 0.9022 to 0.9037. Furthermore, a modified equation is given to reflect the relationship between γ’ and Rc.

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Periodical:

Advanced Materials Research (Volumes 97-101)

Pages:

591-596

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.97-101.591

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Online since:

March 2010

Authors:

Wen Bin Sheng, Chun Ming Zhang, Wan Li Gu

Keywords:

Criterion, Critical Cooling Rate, Glass-Forming Ability, Statistical Correlation Parameter

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