论文部分内容阅读
The positron lifetime spectra of several Al93.3-xFe4.3V0.7Si1.7Mmx (x = 0.5%, 1.0%, 3.0%, atom fraction) alloys with different content of misch metal prepared by rapid solidification were measured, and the variations on the interfacial defects with the content of misch metal were revealed by an analysis of the lifetime results. The interface characteristics derived from the lifetime results could be used to give a satisfactory interpretation of the dependence of mechanical properties on the content of misch metal.