Strengthening mechanisms of Al wires processed by equal channel angular torsion drawing

Mojtaba Pourbashiri, M. C. Poletti, M. Sedighi, Christof Sommitsch

Research output: Contribution to journalArticlepeer-review


his paper reports the microstructure evolution, mechanical properties and strengthening mechanisms of a commercial purity Al alloy (Al 1350) after severe plastic deformation by a novel continuous method called ‘Equal Channel Angular Torsion Drawing (ECATD)’. Electron backscatter diffraction (EBSD) results revealed an inhomogeneous grain refinement including a large fraction of low-angle grain boundaries. After four passes, the microhardness increases from the initial value of 35 HV up to 44 and 62 HV at the centre and near to wire surface, respectively. A combination of high strength and ductility can be achieved based on the results of a Taguchi design of experiment (DoE) for mechanical properties. The strengthening occurs due to increment of the dislocation density, and development of mainly new low-angle grain boundaries
Original languageEnglish
Number of pages18
JournalMaterials Science and Technology
Publication statusE-pub ahead of print - 12 Nov 2019

Fields of Expertise

  • Advanced Materials Science


Dive into the research topics of 'Strengthening mechanisms of Al wires processed by equal channel angular torsion drawing'. Together they form a unique fingerprint.

Cite this