Abstract
The magnetic, electrical and elastic properties of 3Cr-1Mo-0.25 V steel were investigated using heat treatment procedures (as-quenched→tempered→PWHT). The mechanical properties were determined for the respective specimens with three types of heat histories. The mechanical properties (yield stress, hardness) and magnetic properties (permeability, coercive force, remanence) were inversely proportional to the heat treatment procedures. The permeability decreased linearly with an increase in the grain size; however, the yield stress, hardness, coercive force and remanence did not vary greatly with grain size. The electrical resistivity and ultrasonic velocity of the as-quenched material differed from those of the tempered/PWHT material. This trend was due to the defects, precipitates and carbides in the grain and at the grain boundary caused by the heat treatment procedures. However, the electrical resistivity and ultrasonic velocity did not vary greatly with grain size.
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Nam, Y.H., Nahm, S.H. Evaluation of material properties of 3Cr-1Mo-0.25V steel by magnetic, electrical and elastic properties. Met. Mater. Int. 19, 1215–1220 (2013). https://doi.org/10.1007/s12540-013-6010-2
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DOI: https://doi.org/10.1007/s12540-013-6010-2