Hot rolling of spark-plasma-sintered pure aluminium

ABSTRACT

In the present study, aluminium sheets were produced through the hot rolling of Spark-Plasma-Sintered (SPSed) discs. The effects of post possessing on the microstructure, texture and mechanical properties of the SPSed and hot-rolled specimens were studied using SEM-EBSD, tensile and microhardness tests. It has been shown that the hot-rolled specimens depict finer and equiaxed microstructure if compared with the SPSed ones. In addition, tensile properties improved in the hot-rolled specimens if compared with those belonging to the SPSed materials. This behaviour was attributed to porosity reduction, dynamic recrystallisation phenomena, grain refinement and formation of new grain boundaries. Although S {123} <634> was the main texture component in SPSed sample. Cube component {011} <211> formed after hot rolling.

KEYWORDS:

• Aluminium
• SPS
• hot rolling
• mechanical properties
• texture

Disclosure statement

No potential conflict of interest was reported by the authors.

Notes on contributors

Ali Shabani is a PhD student in Materials science and engineering at Isfahan University of Technology. His research interests focus on high entropy alloys and sever plastic deformation processes. He is author of over 7 papers in International Journals.

Behzad Sadeghi got his PhD in Nanotechnology Engineering at Isfahan University of Technology. His research interests focus on nanostructured materials and powder metallurgy. He is author of over 10 papers in International Journals.

Pasquale Cavaliere research interests focus on Nanostructured materials, Coatings technology, Powder metallurgy, Iron making and steelmaking processes. He is author of more than 100 papers in International Journals.