中国物理B ›› 1999, Vol. 8 ›› Issue (6): 455-462.doi: 10.1088/1004-423X/8/6/010
林木良1, 林德明2, 王华生2, 吴奕初2
Lin De-ming (林德明)a, Wang Hua-sheng (王华生)a, Wu Yi-chu (吴奕初)a, Lin Mu-liang (林木良)b
摘要: The σ-T and dσ/dT-T curves of the FeCuNbSiB amorphous alloy, which are the relationship between "apparent weight loss" and tempera ture, are investigated by magnetic thermogravimetry analysis (MTGA) technique. It is found that the crystallization process of the samples can be divided into five stages. The studies of samples annealed in the temperature range of 480-610℃ for 1 h show that when the annealing temperature (Ta) is lower than 540℃, the quantity of nanocrystalline α-Fe(Si) phase increases evidently with Ta, and the Curie temperature (Tc) of residual amorphous phase also increases linearly with Ta, i.e., Tc=0.52Ta+91.7℃, with correlation coefficient γ=0.98. The variation of volume fraction of α-Fe(Si) nanocrystalline phase or residual amorphous phase with Ta is measured.
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