THE ROLE OF LOCAL STRUCTURE IN TRACER DIFFUSION MECHANISMS OF AMORPHOUS FE-BASED ALLOYS

Section: Articles Published Date: 2024-10-02 Pages: 7-14 Views: 0 Downloads: 0

Authors

  • Pham Hugo Kien Department of Physics, Thainguyen University of Education, Luong Ngoc Quyen Road,Thainguyen, Vietnam
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Abstract

This study explores the role of local structural characteristics in influencing tracer diffusion mechanisms within amorphous Fe-based alloys. Amorphous materials, characterized by their lack of long-range order, exhibit unique properties that differ significantly from their crystalline counterparts. The diffusion behavior of tracer atoms within these alloys is critical for understanding their thermal stability, mechanical properties, and overall performance in various applications. Utilizing advanced characterization techniques, including nuclear magnetic resonance (NMR), X-ray diffraction (XRD), and atomic pair distribution function (PDF) analysis, we investigate the local structural arrangements and their correlation with diffusion pathways.

Our findings reveal that variations in the local environment, such as atomic coordination and clustering, significantly affect the mobility of tracer atoms. The results indicate that regions of increased atomic density facilitate higher diffusion rates, while disordered environments impede tracer movement. Additionally, we assess the impact of alloying elements on the local structure and diffusion behavior, providing insights into how compositional changes can be leveraged to optimize the properties of Fe-based alloys for specific applications.

This research contributes to a deeper understanding of the interplay between local structural characteristics and diffusion mechanisms in amorphous Fe-based alloys, offering valuable guidance for the design and development of advanced materials with tailored properties for industrial applications. Ultimately, the insights gained from this study may pave the way for enhancing the performance of amorphous alloys in a range of engineering fields.

Keywords

Local structure, tracer diffusion, amorphous alloys