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University of Zenica , Zenica , Bosnia and Herzegovina
University of Zenica , Zenica , Bosnia and Herzegovina
University of Zenica , Zenica , Bosnia and Herzegovina
Steel 67SiCr5 is a alloyed carbon steel usually used for production of springs. It is used for load bearing springs, ring-shape springs, spiral springs, anti vibration springs etc. Springs steels are usually distribute in annealed or hardened and tempered state. Heat treating could be performed before or after springs forming. In this article, the results of influence of different form of heat treatment on microstructure and hardness are presented. Heat treatments like annealing (normalizing and soft annealing), hardening and tempering are carried out in atmospheric condition. From the results could be seen that in opposite of annealing the hardening treatment improves hardness of the material. Tempering process decreases hardness but it still higher than in the case of annealing. Microstructural analysis shows that temperature of heat treatment and a cooling rate had very important influence on microstructure. Also, a presence of a decarburization was noticed
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