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Tavoosi, Majid. (1402). Glass formation in Cu50Zr50-xAlx and (Cu50Zr43Al7)100-xNbx alloys. , 56(2), 205-212. doi: 10.22059/jufgnsm.2023.02.09
Majid Tavoosi. "Glass formation in Cu50Zr50-xAlx and (Cu50Zr43Al7)100-xNbx alloys". , 56, 2, 1402, 205-212. doi: 10.22059/jufgnsm.2023.02.09
Tavoosi, Majid. (1402). 'Glass formation in Cu50Zr50-xAlx and (Cu50Zr43Al7)100-xNbx alloys', , 56(2), pp. 205-212. doi: 10.22059/jufgnsm.2023.02.09
Tavoosi, Majid. Glass formation in Cu50Zr50-xAlx and (Cu50Zr43Al7)100-xNbx alloys. , 1402; 56(2): 205-212. doi: 10.22059/jufgnsm.2023.02.09

Glass formation in Cu50Zr50-xAlx and (Cu50Zr43Al7)100-xNbx alloys

Journal of Ultrafine Grained and Nanostructured Materials
مقاله 9، دوره 56، شماره 2، اسفند 2023، صفحه 205-212    اصل مقاله (1.4 M)
نوع مقاله: Research Paper
شناسه دیجیتال (DOI): 10.22059/jufgnsm.2023.02.09
نویسنده
Majid Tavoosi*
Department of Materials Engineering, Malek Ashtar University of Technology (MUT), Iran.
چکیده
In the present work, the effects of Al and Nb elements on the formation of glassy phase in Cu-Zr based bulk metallic glasses (BMGs) have been investigated. In this regards, different Cu50Zr50-xAlx and (Cu50Zr43Al7)100-xNbx samples with 2 mm in diameter were prepared using arc melting followed by injection casting in water-cooled copper mold. The results illustrated that Al has positive effect on increasing the glass forming ability (GFA) of Cu-Zr system, and it is possible to create a completely glassy structure in Cu50Zr43Al7 sample. In contrast, the addition of Nb has destructive effects on glass forming ability, the homogeneity and final mechanical properties of Cu-Zr-Al BMGs. The segregation of Nb during solidification process and precipitation of brittle B2-CuZr and Cu10Zr7 phases are the main reasons of lower ductility and compressive strength in the presence of Nb element. As-solidified samples containing Nb showed compressive fracture strength in the range of 1000-1650 MPa, which was much lower than Nb-free alloy (2050 MPa).
کلیدواژه‌ها
Bulk metallic glass؛ Injection casting؛ Cu-Zr-Al؛ Mechanical properties
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