کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1483638 | 1510509 | 2009 | 4 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Glass formation and non-isothermal crystallization of Zr62.5Al12.1Cu7.95Ni17.45 bulk metallic glass Glass formation and non-isothermal crystallization of Zr62.5Al12.1Cu7.95Ni17.45 bulk metallic glass](/preview/png/1483638.png)
Glass forming ability (GFA) and non-isothermal crystallization kinetics of Zr62.5Al12.1Cu7.95Ni17.45 bulk metallic glass were investigated. Its critical dimension is up to 7.5 mm and its critical cooling rate is less than 40 K s−1, indicating its better GFA. It manifests two crystallization procedures and the second crystallization peak is more sensitive to heating rate than the first crystallization peak. The glass transition and crystallization both have remarkable kinetics effects. The apparent activation energies derived from the Kissinger plots are 175.24 ± 27.59 KJ mol−1 for glass transition Eg, 212.84 ± 15.84 KJ mol−1 for onset crystallization Ex, 230.51 ± 23.85 KJ mol−1 for the first crystallization peak Ep1 and 124.85 ± 15.15 KJ mol−1 for the second crystallization peak Ep2.
Journal: Journal of Non-Crystalline Solids - Volume 355, Issues 34–36, 15 September 2009, Pages 1703–1706