TTT diagram in heating
HI all, i'm an italian student, i'm working on a fem metallurgical simulation of a ring ( AISI 4140) normalized after forging and then quenched. I'm having a problem gathering TTT diagrams for the heating part, the austenitization above A3 until i have 100% austenite and no more residual carbides. I only found a CHT (continuous heating trasformation). I need TTT to fit parameters of Leblond equation, especially the TAU parameter (delay time). Any suggestion? this is a strategical part because the amount of residual carbides after normalization changes the final result and can generate distortion.
thx you all
thx you all
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