ECCC-160使用非金属化合物促使铁素体不锈钢的等轴晶结构的形成.pdf

Control of solidification structures and management of defects Session 12 1 Formation of equiaxed structure of Introduction ferritic stainless steel by non– Ferritic stainless steel (FSS) sheets develop an metallic compounds undesirable surface corrugation known as ridging when pulled or deeply drawn [1–11]. The resulting FSS Joo Hyun Park exhibits undulation, with peaks on one side of the School of Materials Science and Engineering, sheet coinciding with valleys on the other side, without University of Ulsan, Ulsan 680-749, Korea a change in the thickness. The ridges have a depth of Tel.: +82 52 259 227; fax: +82 52 259 1688. 20–50 m and the undesirable surface defect adds E-mail address: basicity@mail.ulsan.ac.kr. manufacturing costs through the need for polishing. Therefore, many scientists have investigated the Abstract causes and countermeasures using the finite element The effects of oxide and nitride inclusion particles method [4,5], electron back scatter diffraction analysis in a steel melt on the formation of the equiaxed grain [7,9,10], recrystallisation technology [8], and structure are investigated during solidification of ferritic intermediate annealing technology [12