Hi, I'm in interested in contacts with scientists who are involved in steel microstructure multiscale simulation during thermo-mechanical treatment, namely, for severe plastic deformation (SPD)
Hi, I am a PhD. Student in Thermo Mechanical Processing - Severe Plastic Deformations at IIT. Hyderabad and would like to be in touch with you for sharing experiences and discussion.
My questions for discussion are as following.
1) There are several methods to produce ultra-fine grained (UFG) metals (ferrous and non-ferrous) with grains less than 1 micron, and SPD methods (ECAE(P), HPT, ARB, asymm. rolling-AR) are among them. However, I don't know examples of methods implemented in industrial steel production since 1970s when ECAE was invented. Why? I think due to discrete nature of processes. Does anybody know industrial applications of PSD?
2) There are a lot of publications on multiscale modeling of steel microstructure using standard FEM, special FEM, molecular dynamics methods (discrete elements, moving cellular automata) with quite nice images of simulations. How to varify results of simulations in grains boundary deformations and strains, grains growth and fragmentation as we will never have exactly the same pictures under microscope, moreover 2D. What criteria of microstructure models correctness? I think only statistical parameters of grains distribution (before and after deformation) can help in validation. Is any other opinions?
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