Abstract Scope |
Alloy additive manufacturing is an innovative technique; however, metal vaporization poses a challenge by impacting product quality. Loss of elements during melting, especially for metals with low boiling points like Mn, Zn, Al, and Mg, is detrimental to attaining desired properties. To address this, accurate models are needed to estimate mass loss during laser melting to compensate for additional alloying. Currently, available models lack reliable material property estimation and focus mainly on thermal modeling for melt pool temperature and size. This work employs the CALPHAD (Calculation of phase diagrams) method for material property calculations with CALPHAD-based thermophysical property databases to estimate the alloy-dependent melt pool dimensions. The thermo-gravimetric analysis is employed to estimate the mass loss in a model alloy system to validate the model fidelity. This study emphasizes the importance of accurate material properties to improve the fidelity of the vaporization model. |