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Post by Tim on Dec 31, 2019 15:16:53 GMT
Which material properties are needed for heat treatment modeling using DANTE?
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Post by Admin on Dec 31, 2019 15:28:31 GMT
To have a proper heat treatment model, material properties spanning several phenomena are needed...
1) Diffusion Properties: This includes carburizing and nitriding, or a combination of the two. Diffusion of the element(s) (carbon and/or nitrogen) is needed, as well as the formation and dissolution rates of the carbides and/or nitrides. All diffusion properties must be a function of temperature and element concentration. The effects of grain size on the diffusion properties can also be incorporated into the model if necessary.
2) Phase Transformation Properties: Of all the material properties needed for heat treatment modeling, the phase transformation kinetics are probably the most important. The transformation timing, transformation rate, and the transformation strains are the key properties needed. They must be functions of temperature, time, and carbon content. DANTE Solutions has developed a tool used to aid in fitting experimental data to DANTE's phase transformation models.
3) Thermal Properties: The thermal material properties needed are thermal conductivity, specific heat, and coefficient of thermal expansion. All of these properties must be functions of phase and temperature.
4) Mechanical Properties: Both elastic and plastic properties need to be determined. They must be fit to the internal state variable model used in DANTE. DANTE Solutions has developed a tool used to aid in fitting experimental data to DANTE's mechanical model. The mechanical properties must be functions of phase, temperature, carbon, nitrogen, strain, and strain rate
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