Microstructural Modifications During Heating of Warm Rolled AISI 1015 Carbon Steel

Abstract

For industrial applications, warm working is very attractive due to certain advantages offered by this plastic deformation process. Heat treating of warm worked steels can lead to a significant improvement of their mechanical properties. The paper presents the influence of the heat-treating regime applied to warm rolled AISI 1015 carbon steel. The rolling was performed in the following conditions: temperature 670 oC – 550oC, rolling speed 1.39 s-1 and deformation ratio 36.4 %. After rolling, the samples were reheated to 550o, 600o and 650oC for a duration varying from a few minutes to 10 hours. The microstructural changes were assessed by light and electron microscopy and the possible heat treatments were considered.