Microstructure and mechanical properties of columnar-grained copper produced by the Ohno continuous casting technique

• Published in: Materials science & engineering. A, Structural materials : properties, microstructure and processing Vol. 639; pp. 122 - 130
• Main Authors: Wang, Y.H., Xiao, L.R., Zhao, X.J., Hu, W., Song, Y.F., Zhang, W., Zhou, H.
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.07.2015
• Subjects: CASTING; Columns (process); Columns (structural); CONTINUOUS CASTING; Continuous columnar-grained copper; Copper; MECHANICAL PROPERTIES; Microstructure; MICROSTRUCTURES; Ohno continuous casting; PROPERTIES; Surface layer; TENSILE STRENGTH; Texture; TEXTURES; Mechanical properties; Ohno continuous casting; Microstructure; Continuous columnar-grained copper
• ISSN: 0921-5093; 1873-4936
• DOI: 10.1016/j.msea.2015.04.099

The microstructure and mechanical properties of columnar-grained copper under casting and drawing conditions were investigated in the present work. It was found that the as-casted copper mainly consisted of continuous columnar grains with orientation preference along and exhibited excellent plastic deformation ability. Moreover, the texture of columnar-grained copper transferred from to during the drawing process. A typical microstructural morphology as multangular-cup feature of as-casted copper as well as drawn copper was observed on the fracture surfaces. With increasing the drawn strain, the texture evolution and the grains broken occurred, leading to a significant increase in the work hardening rate and tensile strength.