engleski

Development of bake hardening effect by plastic deformation and annealing conditions

The paper deals with the classification of steel sheets for automotives industry on the basis of strength and structural characteristics. Experimental works were aimed to obtain the best possible strengthening parameters as well as work hardening and solid solution ferrite hardening, which are the result of thermal activation of interstitial carbon atoms during paint-baking of auto body. As resulting from the experimental results, the optimal treatment conditions for the maximal sum (WH+BH)=86 MPa are as follows : total cold rolling deformation = 65 % , annealing temperature T=700 °C.

plastic deformation ; steel sheets ; strength ; structure ; annealing

Tiskano u: Metalurgija 45 (2006) 3, 200.