Effect of cooling rate on the mechanical properties of amorphous alloy: From the perspective of heterogeneity

IF 2.7 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Letters Pub Date : 2025-02-15 DOI:10.1016/j.matlet.2025.138239

Yezeng He , Jiaojiao Qin , Reza Behmadi , Nahid Hojati , Qi He , Changjiu Chen , Haishun Liu , Weiming Yang , Akbar Hojjati-Najafabadi

引用次数: 0

Abstract

Amorphous alloys have garnered attention for the unique disordered structure, exceptional properties and promising application potential. The cooling rate during preparation is crucial for shaping their structure and properties. This study primarily investigates the effects of cooling rates on the structural and mechanical heterogeneity of amorphous alloys. The results show that increasing the cooling rate leads to a decrease in the strain required to form shear bands, and the germination regions of shear bands usually have low relative elastic modulus. Additionally, the Spearman coefficient indicates a strong positive correlation between the reduced elastic modulus and the icosahedral structure. Moreover, as cooling rates increase, the alloy exhibits a concomitant increase in both structural and mechanical heterogeneity.

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来源期刊

Materials Letters 工程技术-材料科学：综合

CiteScore

5.60

自引率

3.30%

发文量

1948

审稿时长

50 days

期刊介绍： Materials Letters has an open access mirror journal Materials Letters: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review. Materials Letters is dedicated to publishing novel, cutting edge reports of broad interest to the materials community. The journal provides a forum for materials scientists and engineers, physicists, and chemists to rapidly communicate on the most important topics in the field of materials. Contributions include, but are not limited to, a variety of topics such as: • Materials - Metals and alloys, amorphous solids, ceramics, composites, polymers, semiconductors • Applications - Structural, opto-electronic, magnetic, medical, MEMS, sensors, smart • Characterization - Analytical, microscopy, scanning probes, nanoscopic, optical, electrical, magnetic, acoustic, spectroscopic, diffraction • Novel Materials - Micro and nanostructures (nanowires, nanotubes, nanoparticles), nanocomposites, thin films, superlattices, quantum dots. • Processing - Crystal growth, thin film processing, sol-gel processing, mechanical processing, assembly, nanocrystalline processing. • Properties - Mechanical, magnetic, optical, electrical, ferroelectric, thermal, interfacial, transport, thermodynamic • Synthesis - Quenching, solid state, solidification, solution synthesis, vapor deposition, high pressure, explosive