Microstructure control in additive manufacturing is challenging. Therefore, understanding the thermal aspects is necessary for an efficient application of technology. Nickel-aluminum bronze is a high-value alloy for seawater service. Traditionally used by casting, its properties are significantly improved by additive manufacturing. This is partly due to the complex sequence of phase transformations that may occur. In this work, the effect of processing parameters such as wire feed speed and travel speed, on microstructure, is explored. These processing parameters have a profound effect on the material phase transformations. Hence, predicting the reheating, let alone understanding its resulting microstructure, constitutes a major challenge. Thus, the value of the present work lies in exposing the effect of a single reheating, and how this may change with processing parameters. This work serves as a base for future, more detailed observations on microstructural transformations.