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首页> 外文期刊>Journal of Materials Engineering and Performance >Effect of Copper and Zirconium Addition on Properties of Fe-Co-Si-B-Nb Bulk Metallic Glasses
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Effect of Copper and Zirconium Addition on Properties of Fe-Co-Si-B-Nb Bulk Metallic Glasses

机译：铜和锆添加对Fe-Co-Si-B-Nb散装金属玻璃性能的影响

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摘要

In this research work, iron-based bulk metallic glasses (BMGs) have been fabricated, characterized and compared with Fe-Si alloy. BMG alloys of composition ((Fe0.6Co0.4)(0.75)B0.20Si0.05)(96)Nb-4) were synthesized by suction casting technique using chilled copper die. Effect of copper and zirconium addition on magnetic, mechanical, thermal and electrochemical behavior of ((Fe0.6Co0.4)(0.75)B0.20Si0.05)(96)Nb-4 BMGs was investigated. Furthermore, effect of annealing on nano-crystallization and subsequently on magnetic and mechanical behavior was also analyzed. Amorphousness of structure was evidenced by XRD analysis and microscopic visualization, whereas nano-crystallization behavior was identified by peak broadening of XRD patterns. Magnetic properties, measured by vibrating sample magnetometer, were found to be improved for as-cast BMG alloys by copper addition and further enhanced by nano-crystallization after annealing. Mechanical properties were observed to be increased by zirconium addition while slightly declined by copper addition. Potentiodynamic polarization analysis manifested the positive role of zirconium in enhancing corrosion resistance of BMGs in acidic, basic and brine mediums. Moreover, mechanical properties and corrosion analysis results affirmed the superiority of BMG alloys over Fe-Si alloy.
机译：在这项研究工作中，与Fe-Si合金进行了制造，特征和比较了铁基散装金属玻璃（BMG）。通过使用冷轧铜模具，通过抽吸铸造技术合成组合物（（Fe0.6COO 0.4）（0.75）B0.20SI0.05）（96）NB-4）的BMG合金。研究了铜和锆的作用对（（Fe0.6CO0.4）（0.75）B0.20SI0.05）（96）NB-4 BMGS的磁性，机械，热和电化学行为的影响。此外，还分析了退火对纳米结晶和随后对磁性和力学行为的影响。通过XRD分析和微观可视化证明了结构的非晶性，而通过XRD图案的峰值展开鉴定纳米结晶行为。通过振动样品磁力计测量的磁性，发现通过铜加成来改善以铸造的BMG合金，并通过退火后的纳米结晶进一步增强。观察到机械性能通过锆添加增加，而通过铜添加略微下降。电位动力学偏振分析表现出锆在酸性，碱性和盐水介质中增强BMG的耐腐蚀性的积极作用。此外，机械性能和腐蚀分析结果肯定了BMG合金对Fe-Si合金的优越性。

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