Texture evolution in aluminum sheet subjected to warm asymmetric rolling with one pass of high reduction and subsequent annealing

Texture evolution in commercial purity aluminum sheet subjected to asymmetric rolling (ASR) with one pass of high reduction has been investigated. Warm ASR with high differential speed ratios of 2 and 2.5 was applied in order to impose strain for the annealed sheet after cold rolling. The sheet was asymmetrically rolled in the direction parallel to the original rolling direction (RD) or 45° from the rolling direction (RD+45°). The one pass ASR at a temperature ranging from 423 to 473 K imposed shear strain on the sheet. Finer grain structure in the faster roll side was formed by the warm ASR and subsequent annealing. The shear texture component E{111}≤110≥ mainly evolved in the specimen subjected to ASR and annealing. The higher fraction of E component was obtained in the ASR direction of RD+45°, which was related to the initial texture before the ASR. © 2016 The Japan Institute of Light Metals.