Yi Li , Fulin Jiang , Xiejun Hu , Yunhai Wang , Shu Hu , Jie Tang , Hui Zhang , Lei Liu , Ruifa Feng , Guoxing Li , Yao Wang , Yuxiang Lai , Jianghua Chen
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引用次数: 0
Abstract
Al-Mg-Si alloy conductors require high strength, ductility, and conductivity for electrical applications. Common strengthening methods like microalloying and severe plastic deformation typically compromise ductility and conductivity. In this work, Be addition in Al-0.68 Mg-0.57Si alloy conductor synchronously improved tensile strength, elongation, and conductivity under two typical heat treatments. Be addition could delay the early precipitation kinetics, refine precipitate size while increase density and volume fraction. The HAADF-STEM, EELS, and DFT calculations revealed that Be atoms substituted Al and vacancies in B′ precipitate, enabled β″-B′ co-existence during aging treatment.
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
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