AM363 martensitic Stainless Steel: a multiphase equation of state

A multiphase equation of state for stainless steel AM363 has been developed. Three phases are constructed separately: the low pressure martensitic phase, the austenitic phase and the liquid. Room temperature data and the explicit introduction of a magnetic contribution to the free energy determine the martensitic phase, while shock Hugoniot data is used to determine the austenitic phase and the phase boundaries. More experimental data would be useful to better characterize the liquid.