Abstract
The effects of continuous and batch annealing on the mechanical properties and strengthening mechanisms of rephosphorized steels containing Si and Cb were studied. Cold rolling in combination with continuous annealing provided a higher yield strength than was attained in the hot-rolled material because of the resultant finer ferrite grain size. On the other hand, batch annealing following cold reduction generally resulted in a lower yield strength because of grain growth and, for the Cb-alloyed steels, precipitate coarsening as well. For the steels alloyed with Si, in the case of batch annealing, increasing Si from 0 to 0.5 pct resulted in increasing yield stength due to both grain refinement and solid solution strengthening, whereas in the case of continuous annealing, the Si addition resulted solely in solid solution strengthening. For the Cb-steels, the increase in yield strength with increasing Cb content was due to increased precipitation strengthening in the case of continuous annealing and due to both increased precipitation strengthening and grain growth retardation in case of batch annealing.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.