The problem of determining stresses, phase compositions and temperature distributions during the transformation hardening of steel with a CO-laser beam is investigated. To model the different phases in each material point a parallel fraction model is used, in which each fraction represents one phase. The description of phase transformations is obtained by an incremental formulation of the Avrami-equation for isothermal transformation. A model is developed to describe the superheating of ferrite and pearlite. The model is demonstrated by a detailed computation of stresses, deformations and phase compositions in the case of a stationary laser flash.
|Publication status||Published - Mar 1990|
|Event||Optical science and engineering, 1990: CO2 Lasers and Applications II - the Hague, Netherlands|
Duration: 12 Mar 1990 → 15 Mar 1990
|Conference||Optical science and engineering, 1990|
|Abbreviated title||SPIE 1276|
|Period||12/03/90 → 15/03/90|