{"title":"Peculiar microstructure with high damping capacity for Al0.5CrFe2Ni medium-entropy alloy","authors":"Hongding Wang, Wei Zhang, Peng Gao, Qingchun Xiang, Yingdong Qu, Yinglei Ren, Bo Yu, Keqiang Qiu","doi":"10.1016/j.jallcom.2024.175378","DOIUrl":null,"url":null,"abstract":"In this paper, the effect of Al mole ratio on phase evolution, damping capacity and mechanical properties of the AlCrFeNi (indicated by Al, = 0.3, 0.4, 0.5 and 0.7) medium-entropy alloys (MEAs) was investigated. The results show that the structure of the Al MEAs changes from the face-centered cubic (FCC) phase dominated by the Al alloy to the body-centered cubic (BCC) phase dominated by the Al alloy. As the volume fraction of the BCC phase increases the corresponding grain size of the alloys decreases and then increases, which increases the ferromagnetic properties and decreases interfacial area in the Al alloys. The high damping capacity of Al and Al alloys is corresponding to 0.05545, and 0.05044, respectively, under the synergistic effects of ferromagnetic damping and interfacial damping. The special honeycomb-like morphology of FCC phase distributed in the BCC matrix gives the Al alloy the highest damping capacity and yield strength.","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":null,"pages":null},"PeriodicalIF":5.8000,"publicationDate":"2024-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Alloys and Compounds","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1016/j.jallcom.2024.175378","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
引用次数: 0
Abstract
In this paper, the effect of Al mole ratio on phase evolution, damping capacity and mechanical properties of the AlCrFeNi (indicated by Al, = 0.3, 0.4, 0.5 and 0.7) medium-entropy alloys (MEAs) was investigated. The results show that the structure of the Al MEAs changes from the face-centered cubic (FCC) phase dominated by the Al alloy to the body-centered cubic (BCC) phase dominated by the Al alloy. As the volume fraction of the BCC phase increases the corresponding grain size of the alloys decreases and then increases, which increases the ferromagnetic properties and decreases interfacial area in the Al alloys. The high damping capacity of Al and Al alloys is corresponding to 0.05545, and 0.05044, respectively, under the synergistic effects of ferromagnetic damping and interfacial damping. The special honeycomb-like morphology of FCC phase distributed in the BCC matrix gives the Al alloy the highest damping capacity and yield strength.
本文研究了 Al 摩尔比对 AlCrFeNi（用 Al = 0.3、0.4、0.5 和 0.7 表示）中熵合金（MEAs）的相演化、阻尼能力和机械性能的影响。结果表明，Al 中熵合金的结构从以 Al 合金为主的面心立方（FCC）相变为以 Al 合金为主的体心立方（BCC）相。随着 BCC 相体积分数的增加，合金的相应晶粒尺寸先减小后增大，从而增加了铁磁性能并减小了铝合金的界面面积。在铁磁阻尼和界面阻尼的协同作用下，Al 和 Al 合金的高阻尼容量分别为 0.05545 和 0.05044。分布在 BCC 基体中的 FCC 相的特殊蜂窝状形态使 Al 合金具有最高的阻尼容量和屈服强度。
期刊介绍：
The Journal of Alloys and Compounds is intended to serve as an international medium for the publication of work on solid materials comprising compounds as well as alloys. Its great strength lies in the diversity of discipline which it encompasses, drawing together results from materials science, solid-state chemistry and physics.
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