冷轧不锈钢内部夹杂物破碎行为有限元分析

Non-metallic inclusions inevitable exist in strips, whose deformation behavior during rolling will affect the quality of rolled products. In the paper, the shattering process of the circle, square, and triangle inclusions in stainless steel strips during cold rolling was simulated by finite element method. Results show that the inclusion firstly breaks in inclusion center for circle inclusions, which firstly breaks at the inclusion corner for square and triangle inclusions. When the inclusions were separated with the strip matrix, the cracks occurred around the inclusions after rolling.