Characterization of Hot Deformation behavior for Ultra-High Strength (UHS) Steel containing Tungsten

The steel alloy of the current study contains 0.3% carbon with different amounts Cr, and Mo, in addition to W. Single simulation hits were designed as isothermal passes for compressive hot deformation up 0.5 true strain. Each pass was carried out at temperatures, 1050, 950, 850 750 oC, strain rates 0.1 1.0 sec-1. A numerical computational model is used formulation flow behavior specified conditions. considers inseparable hardening mechanism dynamic softening phenomenon. It noticed that high temperature lowers stress value (σf), while increase rate raises it. curves reveal initial phenomena combination low features. With strain, softening, becomes dominant, gradually drops until a relatively stable level. Predicted then constructed compared their counterpart experimental curves. predicted are typically matching ones.