高熵型MnCuNiFeZn阻尼合金的高温阻尼行为与相变特征
High temperature damping behavior and phase transition characteristics of high-entropy MnCuNiFeZn damping alloy
查看参考文献30篇
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文摘
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制备了新型MnCuNiFeZn高熵阻尼合金,利用X射线衍射仪、扫描电镜、透射电镜、动态热机械分析仪(DMA)与热膨胀仪等研究其微观组织、阻尼特性以及相变特征。研究表明,在固溶以及不同时效工艺下,MnCuNiFeZn合金均为单一母相,合金晶粒大小均匀,呈现出高位错密度特征。随着时效时间的延长,合金常温下发生磁性转变,但常温段的内耗值很低;在673 K以上的高温域,MnCuNiFeZn合金因相变使得内耗值急剧提高。 |
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其他语种文摘
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A new MnCuNiFeZn high entropy damping alloy was prepared. The microstructure, damping properties and phase transition characteristics of the alloy were studied by X-ray diffractometer, scanning electron microscopy, transmission electron microscopy, dynamic thermomechanical analyzer (DMA) and thermal dilatometer. The results show that the MnCuNiFeZn alloy is a single parent phase with uniform grain size and high fault density under solid solution and different aging processes. It is found that the magnetic transformation of the alloy occurs at room temperature with the extension of aging time, but the internal friction value at room temperature is very low. However, the internal friction value of MnCuNiFeZn alloy increases sharply in the high-temperature domain above 673 K due to the phase transformation. |
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来源
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材料工程
,2024,52(1):193-199 【核心库】
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DOI
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10.11868/j.issn.1001-4381.2023.000599
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关键词
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Mn基高熵合金
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内耗
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相变
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高温阻尼性能
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地址
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1.
上海大学, 上海省部共建高品质特殊钢冶金与制备国家重点实验室, 上海, 200444
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南通东凯精密科技有限公司, 江苏, 南通, 226534
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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1001-4381 |
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学科
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金属学与金属工艺 |
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基金
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上海省部共建高品质特殊钢冶金与制备国家重点实验室和上海市钢铁冶金新技术开发应用重点实验室课题
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上海市科委项目
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文献收藏号
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CSCD:7652204
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