INFLUENCE OF METALLURGICAL STRUCTURE ON THE BEHAVIOUR OF CRUSHER PARTS BASED MANGANESE STEELS

Malek ALhajjaji; Brahim Boubeker; Safia EL joumani; Abdellah Zamma; Mohammed Idiri

Volume : V, Issue : XII, December - 2015

INFLUENCE OF METALLURGICAL STRUCTURE ON THE BEHAVIOUR OF CRUSHER PARTS BASED MANGANESE STEELS

Malek Alhajjaji, Brahim Boubeker, Safia El Joumani, Abdellah Zamma, Mohammed Idiri

Abstract :

Influence of Metallurgical StruThe blow bar and cone of crusher used in mineral processing are made of Hadfield steel typically containing over 12% manganese. This steel is characterized by a structural change in service caused by hardening. According to the microstructure formed after annealing, the transformation of austenite during the hardening into martensite determines its operating life. Premature failure of these components is a cause of concern because of the down times and replacement costs. In this paper, we present the results of the metallographic studies and the analysis of the chemical composition of the various studied samples. We highlight that the haste of carbides in the joints of grains can be considered as a phenomenon favorable to the progress of pre–existent cracks in these areas. This study allowed to develop steel grade manganese can be integrated into the production of blow bar and cone with improved cycle life. cture on the Behaviour of Crusher Parts Based Manganese Steels