Minimizing rotor/stator clearance for engine efficiency optimization purposes can lead to severe contacts between the blade tip and the casing. To avoid irreversible blade damage, an abradable coating acting as a sacrificial material layer is sprayed onto the inner surface of the casing. Although experimental test rigs investigate these contacts in operating conditions, numerical approach of the blade-casing interaction can be a satisfactory solution to predict this tribopair system behavior. For this purpose, constitutive laws are needed. Preliminary to the experimental characterization, the porous and heterogeneous nature of AlSi-PE abradable coating imposed the analysis of the representative elementary volume to ensure a macroscopic mechanical response under loading. Then, quasi-static and dynamic compression tests were carried out at three different strain-rates and for temperatures varying from ambient to 360 °C. From these experimental investigations, a thermoelastoviscoplastic bilinear constitutive law has been formulated. To deepen the modeling of AlSi-PE thermomechanical behavior and easily implement in numerical codes, constitutive law parameters from the Johnson-Cook expression and an original formulation were identified for the same experimental dataset. The aim of this work is to present and confront these laws for the loading ranges.