Computer support type modeling method in order the modeling to do behavior of the steel volume which has the volume surface

摘要

The computer (4), steel volume (1) present start state (ZA) with through the volume surface, steel volume (1) result state (ZF) calculates vis-a-vis it operates the present time when at least one influence quantity (W) with of on the basis, solving with conduction of heat equation and phase change equation by steel volume (1). The aforementioned state (ZA and ZF), local density distribution of the movable movable alloy element (K) with, the modeling of the steel the local component of the phase which is done (p1, p2 and p3) with, the quantity which displays the local energy balance of the steel (H) with it includes inside the steel steel volume (1) one volume element (9) vis-a-vis at least. Phase the austenite and other phase, usually includes with ferrite or the cementite. Inside range of the aforementioned transfer equation, which density of movable alloy element (k1 and k3; It calculates whether k2 and k4) the boundary with the o stonite and other phase (11,12) there are on both sides. Furthermore, whether or not density distribution of the movable alloy element (K) has changed the volume element which is the observation object by solving Stefan problem, (9) in the austenite territory, it calculates and, how it has changed, the boundary (11,12) has displaced at the same time whether or not with that, it calculates and, some (x' and x) it has displaced. The local component of phase (p1, p2 and p3) it calculates next, the boundary (11,12) on the basis of position.