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

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Effect of Heat Treatment on the Hardness and Wear of Grinding

Balls

Authors

Sahraoui Aissat, Abdelhamid Sadeddine, Mohand Amokrane Bradai, Rassim Younes, Ali Bilek, Abderrahim Benabbas

Publication date

2017/9/1

Journal

Metal Science and Heat Treatment

Volume 59 Issue 5-6 Pages 297-301 Publisher Springer US Description

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.

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