Author(s):
1. Dušan Ješić, International technology Management Academy, Novi Sad, 2. Pavel Kovač, Faculty of Technical Sciences, Department for Production Engineering, Serbia
3. Dragana Rodić, Univerzitet u Novom Sadu, Prirodno-matematički fakultet, Departman za fiziku, Serbia
4. Borislav Savković, Faculty of Technical Sciences, Department for Production Engineering, Serbia
5. Dražen Sarjanović, Sara-Mont. Doo,, Serbia

Abstract:
Tempering is a heat treatment process to achieve maximum toughness and ductility at a specified hardness and strength. It is important to develop a intelligent model for tempering process for satisfy requirement of mechanical properties with low cost. This paper presents a fuzzy model to predict Charpy-V notch toughness during tempering process of steel. The influence of processing parameters of steel casting, hot working and heat treatment on toughness of tempered steel was investigated. Fuzzy model for prediction od Charpy-V notch toughness of steel was estabilished. In order to validate the model, it is employed to predict the tempering of EN GS-42CrMo4 steel. The calculated results show a good agreement with the experimental ones. This agreement indicates that the fuzzy logic is effective for modeling of tempering process of steels.

Key words:
Modeling, tempering, cast steel, fuzzy logic.

Thematic field:
SYMPOSIUM A - Science of matter, condensed matter and physics of solid states

Date of abstract submission:
11.07.2017.

Conference:
Contemporary Materials 2017 - Savremeni Materijali

Abstract