Glass-forming ability correlated with the liquid-liquid transition in Pd42.5Ni42.5P15 alloy
| Autor: | Yao Yu, Gavin Vaughan, Enyi Chen, Si-Xu Peng, Beatrice Ruta, Marco Di Michiel, Shuai Wei, Haibin Yu, Lin Liu, Liang Peng |
|---|---|
| Přispěvatelé: | State Key of Material Processing and Die and Mould Technology, Huazhong University of Science and Technology [Wuhan] (HUST), Wuhan National High Magnetic Field Center and School of Physics [HUST], European Synchrotron Radiation Facility (ESRF), Spectroscopies optiques des matériaux verres, amorphes et à nanoparticules (SOPRANO), Institut Lumière Matière [Villeurbanne] (ILM), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon, RWTH Aachen University |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Work (thermodynamics)
Materials science Kinetics Alloy Thermodynamics 02 engineering and technology Liquidus engineering.material 01 natural sciences law.invention Nuclear magnetic resonance [SPI]Engineering Sciences [physics] law 0103 physical sciences Liquid liquid [CHIM]Chemical Sciences General Materials Science Vitrification Crystallization 010302 applied physics [PHYS]Physics [physics] Amorphous metal Mechanical Engineering Metals and Alloys Phase transformation kinetics 021001 nanoscience & nanotechnology Condensed Matter Physics Metallic glass Mechanics of Materials engineering Time-temperature-transformation 0210 nano-technology |
| Zdroj: | Scripta Materialia Scripta Materialia, Elsevier, 2021, 193, pp.117-121. ⟨10.1016/j.scriptamat.2020.10.042⟩ |
| ISSN: | 1359-6462 |
| Popis: | International audience; Alloy melts can solidify into metallic glasses if cooled fast enough to avoid crystallization. Glass-forming ability (GFA), a measure of the ease of vitrification, is vital for the fundamental understanding of glass formation, and is also crucial for the application of metallic glasses. Previous studies of GFA mainly focused on the undercooled liquid phase, while the influence of the evolution of the stable melts on GFA is rarely addressed. Here we show that the Pd42.5Ni42.5P15 glass-forming liquid, in which a first-order liquid-liquid transition (LLT) takes place at TLL = 1063 K high above its liquidus temperature, shows significantly different GFA when quenched from the temperature above or below TLL. Moreover, the pathway and kinetics of crystallization of the melt are strongly related to the kinetics of the LLT. Our work provides new insights into the vitrification process and the kinetics of crystallization, and contributes to designing more stable metallic glasses. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect