Comparative Study of the Magnetic Properties and Glass-Forming Ability of Fe-Based Bulk Metallic Glass with Minor Mn, Co, Ni, and Cu Additions

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• 作者：Md Anisur Rahman ; Yun-Zhuo Lu ; Qiang Luo…
• 刊名：Acta Metallurgica Sinica (English Letters)
• 出版年：2016
• 出版时间：September 2016
• 年：2016
• 卷：29
• 期：9
• 页码：834-839
• 全文大小：1,057 KB
• 刊物主题：Metallic Materials; Spectroscopy/Spectrometry; Organometallic Chemistry; Tribology, Corrosion and Coatings; Nanotechnology; Characterization and Evaluation of Materials;
• 出版者：Springer Berlin Heidelberg
• ISSN：2194-1289
• 卷排序：29

文摘

Fe₄₃M₅Cr₁₅Mo₁₄C₁₅B₆Y₂ (M = Mn, Co, Ni, and Cu in at.%) bulk metallic glasses (BMGs) are synthesized using the suction casting technique, and the glass-forming ability (GFA), microstructure, and thermal and magnetic properties of these glasses are extensively examined using X-ray diffraction, differential scanning calorimeter, and vibrating sample magnetometer techniques. Among the four BMG alloys, Fe₄₃Ni₅Cr₁₅Mo₁₄C₁₅B₆Y₂ exhibits the lowest coercivity and the highest saturation magnetization, Curie temperature, effective magnetic moment, and GFA. By contrast, Fe₄₃Mn₅Cr₁₅Mo₁₄C₁₅B₆Y₂ presents the poorest magnetic properties, such as the highest coercivity and the lowest saturation magnetization, Curie temperature, and effective magnetic moment. Fe₄₃Cu₅Cr₁₅Mo₁₄C₁₅B₆Y₂ demonstrates the lowest thermal stability and GFA. The observed thermal, structural, and magnetic properties of these BMG alloys are discussed in terms of the kinetics of BMG synthesization and the formation of different ferromagnetic, ferrimagnetic, and antiferromagnetic phases.KeywordsBulk metallic glassesSaturation magnetizationEffective magnetic momentCoercivityGlass-forming ability