Zirconium purity influence on the critical diameter and thermal indicators of the Zr48Cu36Al9Ag7 alloy

Piotr Błyskun , Piotr Maj , Tomasz Kozieł , Krzysztof Pajor , Tadeusz Kulik


As it is known, the glass forming ability of Zr-based alloys is very sensitive to oxygen content. Oxygen contamination may come from raw zirconium and from alloy preparation stages as well. This work was focused on both factors. Using inert gas fusion method authors measured oxygen content in the zirconium delivered by five different providers as well as in five cone-shaped ingots after a full preparation process. Oxygen level influence on the critical diameter of Zr48Cu36Al9Ag7 alloy was quantitatively determined by cone test. Several common thermal indicators using characteristic temperatures were also calculated. They mostly exhibited high sensitivity to oxygen level as their correlation with the critical diameter was very high. Obtained results revealed that zirconium purity is not a relevant parameter in its quality description. The main GFA influencing factor is oxygen contamination level which should never be neglected. Moreover, an in-depth analysis including cost/quality aspects has been conducted in order to obtain practical guidelines for Zr-based bulk metallic glasses preparation.
Author Piotr Błyskun (FMSE / DCFM)
Piotr Błyskun,,
- Division of Construction and Functional Materials
, Piotr Maj (FMSE / DMD)
Piotr Maj,,
- Division of Materials Design
, Tomasz Kozieł - [AGH University of Science and Technology (AGH)]
Tomasz Kozieł,,
- Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie
, Krzysztof Pajor - [AGH University of Science and Technology (AGH)]
Krzysztof Pajor,,
- Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie
, Tadeusz Kulik (FMSE / DCFM)
Tadeusz Kulik,,
- Division of Construction and Functional Materials
Journal seriesJournal of Non-Crystalline Solids, ISSN 0022-3093
Issue year2019
Publication size in sheets0.5
Keywords in PolishSzkła metaliczne; Zdolność do zeszklenia; Próba stożkowa; Wskaźniki termiczne; Zanieczyszczenie tlenem
Keywords in EnglishMetallic glasses; Glass forming ability; Cone test; GFA indicators; Oxygen contamination
ASJC Classification2503 Ceramics and Composites; 2504 Electronic, Optical and Magnetic Materials; 2505 Materials Chemistry; 3104 Condensed Matter Physics
URL https://www.sciencedirect.com/science/article/pii/S0022309319300444?via%3Dihub
Languageen angielski
Wpływ tlenu JNCS.pdf 886.45 KB
Score (nominal)70
Score sourcejournalList
ScoreMinisterial score = 70.0, 10-06-2020, ArticleFromJournal
Publication indicators WoS Citations = 2; Scopus Citations = 3; Scopus SNIP (Source Normalised Impact per Paper): 2018 = 1.177; WoS Impact Factor: 2018 = 2.6 (2) - 2018=2.393 (5)
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