Intrinsic correlation between dilatation and pressure sensitivity of plastic flow in metallic glasses
Data(s) |
24/07/2010
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Resumo |
Taking shear-induced dilatation into consideration in shear transformation zone (STZ) operations, we derive a new yield criterion that reflects the pressure sensitivity in plastic flow in metallic glasses (MGs), which agrees well with experiments. Furthermore, an intrinsic theoretical correlation between the pressure sensitivity coefficient and the dilatation factor is revealed. It is found that the pressure sensitivity of plastic flow of MGs originates in the dilatation of microscale STZs. |
Identificador | |
Idioma(s) |
英语 |
Fonte |
Scripta Materialia.2010,63(9):945-948 |
Palavras-Chave | #固体力学 #Metallic glasses #Shear transformation zone #Dilatation #Pressure sensitivity |
Tipo |
期刊论文 |