Metallic glasses are alloys that do not exhibit long-range order. Samples of AMZ4 metallic glass (Zr59.3 Cu28.8 Al10.4 Nb1.5) have been produced using two different methods, namely suction casting and selective laser melting.The main objective of this experiment is to investigate the crystallization of AMZ4 metallic glass from the glassy state on printed and cast samples and to characterize the volume fraction, shape and size of the crystallites. This will be done through in-situ heating of the samples. The SANS data, alongside TEM micrographs, will allow us to construct a model to describe the aggregates, their size and distribution. A difference in the growth dynamics of printed and cast samples is expected since their initial state and oxygen content is different.