Author/Authors :
Kazeminezhad، M. نويسنده Department of Materials Science and Engineering Sharif University of Technology, Azadi Ave., Tehran, Iran Kazeminezhad, M. , Khaledzadeh، Y. نويسنده Department of Materials Science and Engineering, Sharif University of Technology, Azadi Ave., Tehran, Iran , , Karimi Taheri ، A. نويسنده Department of Materials Science and Engineering, Sharif University of Technology, Azadi Ave., Tehran, Iran ,
Abstract :
The static strain aging behavior of low carbon steel wires after drawing process is
studied. To do so, the wires are austenitized at different temperatures and cooled in different rates.
Then the wires are drawn and aged at a specific temperature and time. Before and after aging of
each drawn wire, the hardness distribution at its cross section is measured. The increase in
hardness due to aging is called aging index. The results show that the hardness of drawn wire is
increased from center to surface of its cross section. However, after aging the hardness is
decreased from center to surface. In addition, with increasing the austenitizing temperature, the
index is increased. Also, with increasing the cooling rate, the index is decreased. Moreover, the
aging index is decreased from center to surface.
