| FeCoNiCrCu0.5Alx高熵合金的结构和性能（英文） |
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| 引用本文： | 李宝玉,彭坤,胡爱平,周灵平,朱家俊,李德意.FeCoNiCrCu0.5Alx高熵合金的结构和性能（英文）[J].中国有色金属学会会刊,2013,23(3):735-741. |
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| 作者姓名： | 李宝玉 彭坤 胡爱平 周灵平 朱家俊 李德意 |
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| 作者单位： | 湖南大学材料科学与工程学院 |
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| 基金项目： | Project(NCET-11-0127) supported by the Program for New Century Excellent Talents in University,China;Project supported by the Fundamental Research Funds for the Central Universities,China |
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| 摘 要： | 研究Al含量和热处理对FeCoNiCrCu0.5Alx多主元高熵合金的相结构、硬度和电化学性能的影响规律。随着Al含量的增加,铸态合金的相结构由FCC相向BCC相转变。当x从0.5增加到1.5时,FeCoNiCrCu0.5Alx高熵合金的稳定结构由FCC结构向FCC+BCC双相结构转变。BCC相的硬度高于FCC相的,在氯离子及酸性介质中BCC相的耐腐蚀性均优于FCC相的。FeCoNiCrCu0.5Al1.0铸态合金具有高硬度和良好的抗腐蚀性能。
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| 关 键 词： | 高熵合金 微观结构 热处理 稳定相 硬度 抗腐蚀性 |
| 收稿时间： | 6 December 2011 |
Structure and properties of FeCoNiCrCu0.5Alx high-entropy alloy |
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| Bao-yu LI,Kun PENG,Ai-ping HU,Li ng-ping ZHOU,Jia-jun ZHU,De-yi LI.Structure and properties of FeCoNiCrCu0.5Alx high-entropy alloy[J].Transactions of Nonferrous Metals Society of China,2013,23(3):735-741. |
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| Authors: | Bao-yu LI Kun PENG Ai-ping HU Li ng-ping ZHOU Jia-jun ZHU De-yi LI |
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| Affiliation: | College of Materials Science and Engineering,H unan University,Changsha 410082,China |
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| Abstract: | Effects of Al content and heat treatment on the structure, hardness and electrochemical properties of FeCoNiCrCu0.5Alx high-entropy alloys were investigated. The phase structure of as-cast alloys evolves from FCC phase to BCC phase with the increase of Al content. The stable phase of FeCoNiCrCu0.5Alx high-entropy alloys will transform from FCC phase to FCC+BCC duplex phases when x value increases from 0.5 to 1.5. The hardness of BCC phase is higher than that of FCC phase, and the corrosion resistance of BCC phase is better than FCC phase in chlorine ion and acid medium. High hardness and good corrosion resistance can be obtained in as-cast FeCoNiCrCu0.5Al1.0 alloy. |
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| Keywords: | high-entropy alloy microstructure heat treatment stable phase hardness corrosion resistance |
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