Some New Phenomena Discovered During Hardening of Steel Parts In Liquid Quenchants Which Affect Distortion

In the last decades for the intensive quenching processes the new phenomena (shock boiling, self-regulated thermal process, thermal waves) were discovered. In present paper these phenomena are explained on the basis of solving the relevant initial boundary value problems for the parabolic (i.e. classic) and hyperbolic heat conductivity equations. It is shown that investigators must pay special attention to the initial time of quenching when all phenomena take place simultaneously. Moreover, in the work explicit and implicit differential schemes are elaborated and studied for solution of hyperbolic conductivity equation with Dirichlet and Neumann boundary conditions. Several practical approaches are developed and demonstrated as examples of the results of investigations.