کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1611057 | 1516291 | 2014 | 5 صفحه PDF | دانلود رایگان |
• Formability of BMGs is evaluated by the softness in entire super-cooled liquid region.
• The reliability of the convenient evaluation is verified by mould forming experiments.
• 18 Be-free Zr-based BMGs are investigated.
• Correlations between softness and several common used parameters are well explained.
• A new parameter representing the best correlation with the softness is proposed.
Thermoplastic formability (TPFA) is a key factor in fabrication of bulk metallic glass (BMG) components by thermoplastic forming (TPF) technology. In this paper, the softness in the entire super-cooled liquid region (SCLR) is used to evaluate the TPFA of 18 Be-free Zr-based BMGs and the reliability is verified by mould forming experiments. The correlations between softness and thermo-dynamic characteristic temperature parameters are well explained under the assumption of linear SCLR in Angel plot. A parameter constructed by thermo-dynamic and thermal–mechanical characteristic temperatures is proposed, representing the best correlation with softness. These results help understand the TPFA of BMGs well.
Journal: Journal of Alloys and Compounds - Volume 602, 25 July 2014, Pages 326–330