Deformation behaviour of a newer tungsten heavy alloy

► Calculation of activation volume and strain rate sensitivity as a function of strain (from the room temperature tensile test data) has been carried out for the tungsten heavy alloy. ► Flow behaviour of the tungsten heavy alloy at room temperature has been studied in detail. ► Calculation of strain rate sensitivity index at room temperature and at elevated temperature is carried out from the tensile and compression test data. ► Calculation of activation energy of deformation of tungsten heavy alloy is carried out to understand the rate controlling mechanism of deformation. ► Study of the matrix flow behaviour at elevated (500-700 °C) temperatures is also carried out.