Refining mechanism of primary Mg2Si and wear resistance in Al-15 %Mg2Si composites by TiB2 particles addition

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

Materials Letters Pub Date : 2024-11-26 DOI:10.1016/j.matlet.2024.137778

Xinwei Yang , Bo Jiang , Ye Wang , Hongyu Xu , Maoliang Hu , Yu Guo

引用次数: 0

Abstract

In this study, the primary Mg₂Si phase was modified by the addition of TiB₂ to Al-15 % Mg₂Si composites. The effect of TiB₂ on the morphology, size and refinement mechanism of the primary Mg₂Si phase was investigated. The results show that TiB₂ has an obvious refining effect on the primary Mg₂Si phase, and the average size of the primary Mg₂Si particles is reduced from 55.11 μm to 25.18 μm. The refinement mechanism is that TiB₂ promotes heterogeneous nucleation of the primary Mg₂Si phase. After refinement, the wear resistance of the composites was significantly improved.

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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