FEA model for predicting the response of powder metallurgy steel components to heat treatment

Through Process Modelling of Surface Densified PM Gears

“…It should be noted that both the local chemistry of the alloy (especially the carbon content) and the degree of porosity in PM parts influence the microstructure evolution (for the latter see ref. [11]). z Finally, modelling of the stress evolution during heat treatment requires detailed modelling of the thermomechanical behaviour of each material phase.…”

Thermo-mechanical modelling of residual stresses induced by martensitic phase transformation and cooling during quenching of railway wheels

“…DANTE mechanical module/solver is also based on an internal variable framework to track the evolution of different metallurgical phases as austenite transforms into product phases of pearlite, bainite and martensite as described by Warke et al (2009). Material data for the mechanical module are obtained from temperature dependent tension and compression tests as functions of phases, temperature, carbon content, strain level and strain rate which therefore takes into account work hardening in the different phases.…”

“…Thermal expansion data and kinetic rate equations from the dilatometry experiments were incorporated into DANTE in a similar fashion as described in Warke et al (2009).…”

“…Thermal expansion data from the dilatometry experiments were incorporated into DANTE in a similar fashion as described in Warke et al (2009). Experiments for pearlitic steels were previously undertaken by DANTE and material data are available in DANTE's proprietary material library.…”

Computer modeling and validations of steel gear heat treatment processes using commercial software DANTE

“…For welldesigned and controlled processes, residual compressive stresses in the final part surface are expected, and have been proved to benefit the fatigue life [1] . With the help of computer modeling, why and how to obtain surface compressive residual stresses have been investigated and validated for various steel grades, part geometries, and heat treatment processes [2][3][4][5] . However, the part geometry effect on residual stresses is often ignored.…”