Ultrafine Grained Copper Alloys Processed by Continuous Repetitive Corrugation and Straightening Method
A growing trend to use new copper-based functional materials is observed recently world-wide. Within this group of materials particular attention is drawn to those with ultrafine grain size of a copper matrix. This study was aimed to investigate mechanical properties, electrical conductivity and microstructure in strips of precipitation strengthened copper alloys processed by continuous repetitive corrugation and straightening (CRCS). Tests were performed with the copper alloy strips using original die set construction installed on tensile testing machine. The microstructure was investigated using optical and electron microscopy (TEM and SEM equipped with EBSD). Proposition of semi industrial application of this method have been also presented. The CRCS process effectively reduced the grain size of a copper alloy strips, demonstrating the CRCS as a promising new method for producing ultra fine grained metallic strips.
W. Głuchowski et al., "Ultrafine Grained Copper Alloys Processed by Continuous Repetitive Corrugation and Straightening Method", Materials Science Forum, Vol. 674, pp. 177-188, 2011