The mechanical properties of medium-carbon steels with a carbon content ranging from 0.30 to 0.55 wt.% were investigated by tensile and microhardness tests at room temperature. It was observed that the higher carbon content results in an increase in yield stress and ultimate tensile stress, while the elongation remains essentially constant. The results were explained by the hindering of dislocation motion associated with solid solution hardening
Keywords: Medium Carbon Steel; Yield Stress; Ultimate Tensile Stress; Elongation; Solid Solution Hardening
Received: 2008-12-1
Revised: 2009-7-17
Published Online: 2014-6-2
Published in Print: 2010-5-1
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