Effect of Heat Treatment on the Hardness and Wear of Grinding Balls


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Resumo

The effect quenching and tempering by different regimes on Rockwell hardness and wear processes of grinding balls 50 and 70 mm in diameter made of two melts of chromium-molybdenum cast iron is studied. The heating temperature for quenching is 850, 950, and 1050°C; the tempering temperature is 250, 400, and 600°C. Iron is analyzed in an electron microscope. Diffraction patterns are obtained. A model of cast iron wear is suggested and compared to the Davis model and to experimental results. An optimum heat treatment regime is proposed.

Sobre autores

Sahraoui Aissat

Research Laboratory of Industrial Technologies. Department of Mechanical Engineering, Faculty of Applied Sciences Ibn Khaldoun University

Autor responsável pela correspondência
Email: sh_aissat@yahoo.fr
Argélia, Tiaret

Abdelhamid Sadeddine

Laboratory of Mechanics, Materials and Energetic (L2ME), Faculty of Technology, University of Bejaia

Email: sh_aissat@yahoo.fr
Argélia, Bejaia

Mohand Bradai

Laboratory of Mechanics, Materials and Energetic (L2ME), Faculty of Technology, University of Bejaia

Email: sh_aissat@yahoo.fr
Argélia, Bejaia

Rassim Younes

Laboratory of Mechanics, Materials and Energetic (L2ME), Faculty of Technology, University of Bejaia

Email: sh_aissat@yahoo.fr
Argélia, Bejaia

Ali Bilek

Faculty of Construction Engineering, Mechanical Engineering Department, UMMTO University of Tizi-Ouzou

Email: sh_aissat@yahoo.fr
Argélia, Tizi-Ouzou

Abderrahim Benabbas

Laboratory of Processes for Materials, Energy, Water and Environment (LPM3E). Faculty of Science and Technology, University of Bouira

Email: sh_aissat@yahoo.fr
Argélia, Bouira

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