{"title":"TiMoNb增强镁复合泡沫,增强机械性能和能量吸收","authors":"Priyabrata Das , Pulak Mohan Pandey","doi":"10.1016/j.matlet.2025.138588","DOIUrl":null,"url":null,"abstract":"<div><div>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.</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":"393 ","pages":"Article 138588"},"PeriodicalIF":2.7000,"publicationDate":"2025-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"TiMoNb reinforced magnesium composite foam for enhanced mechanical performance and energy absorption\",\"authors\":\"Priyabrata Das , Pulak Mohan Pandey\",\"doi\":\"10.1016/j.matlet.2025.138588\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>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.</div></div>\",\"PeriodicalId\":384,\"journal\":{\"name\":\"Materials Letters\",\"volume\":\"393 \",\"pages\":\"Article 138588\"},\"PeriodicalIF\":2.7000,\"publicationDate\":\"2025-04-16\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Materials Letters\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0167577X25006172\",\"RegionNum\":4,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"MATERIALS SCIENCE, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Materials Letters","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0167577X25006172","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
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.
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