The rapid release of energy from reactive multilayer foils can create extreme\nlocal temperature gradients near substrate materials. In order to fully exploit\nthe potential of these materials, a better understanding of the interaction\nbetween the substrate or filler material and the foil is needed. Specifically, this\nwork investigates how variations in local properties within the substrate (i.e.\ndifferences between properties in constituent phases) can affect heat transport\ninto the substrate. This can affect the microstructural evolution observed\nwithin the substrate, which may affect the final joint properties. The effect of\nthe initial substrate microstructure on microstructural evolution within the\nheat-affected zone is evaluated experimentally in two Sn-Zn alloys and\nnumerical techniques are utilized to inform the analysis.
Loading....