Processing of low Carbon steel by dual rolls equal channel extrusion

6th International Conference on Nanomaterials by Severe Plastic Deformation

材料科学;化学

Rusz, S.^1 ; Cizek, L.^1 ; Salajka, M.^1 ; Kedron, J.^1 ; Tylsar, S.^1

VSB-Technical University of Ostrava, Faculty of Mechanical Engineering, Department of Mechanical Technology, Ostrava-Poruba, Czech Republic^1

关键词: Equal-channel;    Novel techniques;    Ostrava;    Severe plastic deformations;    Strip plates;    Structure refinements;    Submicron grains;    Technical universities;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/63/1/012061/pdf
DOI  :  10.1088/1757-899X/63/1/012061

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

This paper introduces a new method of forming for achievement of grain structure refinement by processing in DRECE (Dual Rolls Equal Channel Extrusion) equipment. The DRECE device was developed at the VSB-Technical University of Ostrava. It allows grain refinement in strip plate with dimensions of 58 mm (width) × 2 mm (thickness) × 1000 mm (length). The influence of the number of passes on the mechanical properties and related structure refinement was examined experimentally. The effect of a heat treatment (500 °C/1 h/steady air) on the grain refinement of low carbon steel after severe plastic deformation is analysed. Through this novel technique, the grain structure can be converted into a submicron grain structure.