TiMoNb增强镁复合泡沫,增强机械性能和能量吸收

IF 2.7 4区 材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY
Priyabrata Das , Pulak Mohan Pandey
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引用次数: 0

摘要

研究了以尿素颗粒为空间载体制备中熵合金(MEA)增强泡沫镁吸能材料。在Mg基体中加入难熔性BCC MEA (TiMoNb)预合金粉末作为增强剂,提高了合金的力学性能。采用300℃烧结溶解法去除尿素颗粒,550℃微波烧结15 min,升温速率为20 K/min。通过XRD分析和EDX颜色映射,证实了TiMoNb增强剂在Mg基体中的均匀混合。增强量在0 ~ 10 wt% (wt %)之间变化,而泡沫的孔隙率在33 ~ 38%之间。与Mg泡沫相比,添加7.5 wt%增强剂的泡沫在峰值强度和能量吸收值方面分别提高了81.6%和210.6%。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
TiMoNb reinforced magnesium composite foam for enhanced mechanical performance and energy absorption
The study focuses on the preparation of a medium entropy alloy (MEA) reinforced Magnesium foam using carbamide particles as space holders for energy absorption application. A refractory BCC MEA (TiMoNb) prealloyed powder was used as reinforcement in the Mg matrix to improve mechanical properties. The carbamide particles were removed through sintering dissolution process at 300℃, followed by microwave sintering at 550℃ for 15 min with a heating rate of 20 K/min. The homogeneous mixing of TiMoNb reinforcement in the Mg matrix was confirmed through XRD analysis and EDX color mapping. The reinforcement content was varied from 0 to 10 wt% (wt %) while keeping the porosity of foam within the range of 33–38 %. The foam containing 7.5 wt% reinforcement showed an improvement of 81.6 % and 210.6 % in peak strength and energy absorption values respectively as compared to the Mg foam.
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来源期刊
Materials Letters
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
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