|About this Abstract
||2016 TMS Annual Meeting & Exhibition
||Ultrafine Grained Materials IX
||X-2: Characterization of Microstructure and Mechanical Properties of 1350 Aluminium Alloy Processed by Equal-Channel Angular Pressing with Parallel Channels
||Marta Lipinska, Lech Olejnik, Malgorzata Lewandowska
|On-Site Speaker (Planned)
An aluminium AA1350 was used to investigate the evolution of microstructure during processing by Equal Channel Angular Pressing with parallel channels at room temperature. The processing was conducted using a die with a channel’s angle of 90˚. Routes C and C+BC were applied to determine the influence of processing route on the mechanical properties and microstructural features. The mechanical properties were evaluated in Vickers microhardness measurements and tensile tests. Microstructural features were determined using Transmission Electron Microscopy observations and Electron Backscatter Diffraction. The results show that there is a gradual grain size reduction from 3 Ám to 500 nm and increase in high angle grain boundary content with increasing number of passes. As a results, the microhardness and tensile strength increase from 30 to 57 Hv0.2 and 85 to 170 MPa, respectively. The relationships obtained are discussed in terms of the microstructure evolution during plastic deformation.