Abstract
Different heat treatment processes were applied to soft magnetic 08 steel with different degrees of deformation to determine the effects on the materials’ magnetic properties. The cylindrical billets were upset in two different reduction and heat treated with three different processes, and cube samples with different strain values were selected for latter magnetic property testing. The magnetic properties of 08 steel were measured using a vibrating sample magnetometer, and the effects of strain and heat treatment on the magnetic properties were analyzed. The results indicated that in conventional heat treatment on a production line, as strain increases, the corresponding magnetisation increase and then decrease, and the value magnetisation are stable under different strain levels; such stability makes the 08 steel suitable for industrial production. Furthermore, the average grain size and uniformity of grains of all the samples were evaluated, and greater uniformity and a larger average size can lead to improved magnetic properties.
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