Academic Journal
Connection between mechanical relaxation and equilibration kinetics in a high-entropy metallic glass
| العنوان: | Connection between mechanical relaxation and equilibration kinetics in a high-entropy metallic glass |
|---|---|
| المؤلفون: | Duan, Yajuan, Nabahat, Mehran, Tong, Yu, Ortiz Membrado, Laia, Jiménez Piqué, Emilio, Zhao, Kun, Wang, Yun-Jiang, Yang, Yong, Wada, Takeshi, Kato, Hidemi, Pelletier, J. M., Qiao, Jichao, Pineda Soler, Eloi |
| المساهمون: | Universitat Politècnica de Catalunya. Doctorat en Física Computacional i Aplicada, Universitat Politècnica de Catalunya. Doctorat en Ciència i Enginyeria dels Materials, Universitat Politècnica de Catalunya. Departament de Ciència i Enginyeria de Materials, Universitat Politècnica de Catalunya. Departament de Física, Universitat Politècnica de Catalunya. CIEFMA-PROCOMAME - Disseny Microestructural i Fabricació Avançada de Materials, Universitat Politècnica de Catalunya. PTP-GlaDyM - Phase transitions, polymorphism, glasses and dynamics of the metastability |
| بيانات النشر: | American Institute of Physics (AIP) |
| سنة النشر: | 2024 |
| المجموعة: | Universitat Politècnica de Catalunya, BarcelonaTech: UPCommons - Global access to UPC knowledge |
| مصطلحات موضوعية: | Àrees temàtiques de la UPC::Física, Metallic glasses, Mechanical Relaxation, Equilibration Kinetics, High-Entropy Metallic Glass, Vidres metàl·lics |
| الوصف: | The slow transition from an out-of-equilibrium glass towards a supercooled liquid is a complex relaxation phenomenon. In this Letter, we study the correlation between mechanical relaxation and equilibration kinetics in a Pd20Pt20Cu20Ni20P20 high-entropy metallic glass. The evolution of stress relaxation with aging time was obtained with an unprecedented detail, allowing us to pinpoint new interesting features. The long structural relaxation towards equilibrium contains a wide distribution of activation energies, instead of being just associated to the ß relaxation as commonly accepted. The stress relaxation time can be correlated with the equilibration rate and we observe a decrease of microstructural heterogeneity which contrasts with an increase of dynamic heterogeneity. These results significantly enhance our insight of the interplay between relaxation dynamics and thermodynamics in metallic glasses. ; Objectius de Desenvolupament Sostenible::7 - Energia Assequible i No Contaminant ; Objectius de Desenvolupament Sostenible::7 - Energia Assequible i No Contaminant::7.a - Per a 2030, augmentar la cooperació internacional per tal de facilitar l’accés a la investigació i a les tecnologies energètiques no contaminants, incloses les fonts d’energia renovables, l’eficiència energètica i les tecnologies de combustibles fòssils avançades i menys contaminants, i promoure la inversió en infraestructures energètiques i tecnologies d’energia no contaminant ; Postprint (author's final draft) |
| نوع الوثيقة: | article in journal/newspaper |
| وصف الملف: | application/pdf |
| اللغة: | English |
| Relation: | https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.132.056101; http://hdl.handle.net/2117/402314 |
| DOI: | 10.1103/PhysRevLett.132.056101 |
| الاتاحة: | http://hdl.handle.net/2117/402314 https://doi.org/10.1103/PhysRevLett.132.056101 |
| Rights: | Attribution-NonCommercial-NoDerivatives 4.0 International ; http://creativecommons.org/licenses/by-nc-nd/4.0/ ; Open Access |
| رقم الانضمام: | edsbas.7FEA427C |
| قاعدة البيانات: | BASE |
| DOI: | 10.1103/PhysRevLett.132.056101 |
|---|