张舒研,张志彬,高洋洋,胡振峰,梁秀兵,王立忠.等原子比AlNiZrCuY轻质高熵非晶合金的组织与耐腐蚀性能[J].稀有金属材料与工程,2022,(2):-.[Zhang Shuyan,Zhang Zhibin,Gao Yangyang,Hu Zhenfeng,Liang Xiubing,Wang Lizhong.Microstructure and Corrosion Property of Equiatomic AlNiZrCuY High Entropy Amorphous Composite Material[J].Rare Metal Materials and Engineering,2022,(2):-].
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等原子比AlNiZrCuY轻质高熵非晶合金的组织与耐腐蚀性能
投稿时间:2021-03-04  修订日期:2021-03-09
中文关键词:  高熵非晶复合材料  组织结构  耐腐蚀性能  热稳定性  硬度
基金项目:国家重点研发计划项目(2018YFC1902400);国家自然科学基金(51975582);北京市自然科学基金(2212055)的资助
中文摘要:
      利用真空电弧熔炼技术与急速冷却快淬设备制备了一种等原子比AlNiZrCuY高熵非晶复合材料薄带,利用X射线衍射仪(XRD)、扫描电子显微镜(SEM)、差示扫描量热仪(DSC)、显微硬度计等手段表征了该复合材料的显微结构、相稳定性并测定其硬度;通过极化曲线和电化学阻抗谱等测试方法研究了高熵非晶复合材料室温下在模拟海水(3.5 wt.% NaCl水溶液)中的防腐蚀性能。结果表明:Al20Ni20Zr20Cu20Y20高熵非晶复合材料是由非晶态组织与金属间化合物相共同组成;利用阿基米德排水法测得材料实际密度约为5.792 g/cm3;其维氏显微硬度为461 HV0.1,击破电位(Eb)为-0.215 V,维钝电流密度( ipass)为29.44 μA/cm2。该高熵非晶复合材料在金属表面防腐与耐磨领域应用前景广阔。
Microstructure and Corrosion Property of Equiatomic AlNiZrCuY High Entropy Amorphous Composite Material
英文关键词:high entropy amorphous composite material  microstructure  corrosion property  thermal stability  hardness
英文摘要:
      A new kind of equiatomic AlNiZrCuY high entropy amorphous composite material (denoted as HEACM) ribbons was prepared by vacuum arc melting technology and rapid quenching system. The microstructure and phase stability of HEACM were characterized by means of X-ray diffraction (XRD), scanning electron microscope (SEM) and differential scanning calorimetry (DSC), and the hardness was measured by Vickers microhardness test methods. All tests were performed in simulated seawater (3.5 wt.% NaCl corrosive solution) at room temperature by CHI660E electrochemical workstation. The corrosion resistance of Al20Ni20Zr20Cu20Y20 was investigated by potentiodynamic polarization curve (Tafel) and electrochemical impedance spectroscopy (EIS). The results show that Al20Ni20Zr20Cu20Y20 HEACM is composed of amorphous phase and intermetallic compounds. The actual density measured by Archimedes method is about 5.792 g/cm3. The Vickers microhardness of this composite material is 461 HV0.1. Its breakdown potential (Eb) is -0.215 V and maintaining passivity current density (ipass) is 29.44 μA/cm2. The equiatomic AlNiZrCuY high entropy amorphous composite material has broad application prospect in the field of corrosion resistance and wear resistance on metal surface.
作者单位
张舒研 浙江大学 海洋学院 
张志彬 军事科学院 国防科技创新研究院 
高洋洋 浙江大学 海洋学院 
胡振峰 军事科学院 国防科技创新研究院 
梁秀兵 军事科学院 国防科技创新研究院 
王立忠 浙江大学 海洋学院 
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