Are there two glass transitions in Fe-M-Y-B (M = Mo, W, Nb)bulk metallic glasses?

作者：Huang X M; Wang X D; He Y; Cao Q P; Jiang J Z^*

来源：Scripta Materialia, 2009, 60(3): 152-155.

DOI：10.1016/j.scriptamat.2008.09.022

• Differential scanning calorimetry (DSC)
• Extended X-ray absorption fine structure (EXAFS)
• Bulk amorphous materials
• Short range ordering

An anomalous glass transition was detected in differential scanning calorimetry (DSC) curves for Fe-M-Y-B (M = Mo, W, Nb) bulk metallic glasses, which has been investigated by DSC, X-ray diffraction and extended X-ray absorption fine structure. It is confirmed that the second inflection event in the supercooled liquid region is not a real glass transition, but rather a local atomic structure reordering, which is mainly caused by the strong affinity between B and other constituent elements as well as the repulsive interaction between M and Y.

• 出版日期2009-2
• 单位浙江大学