Individual effect of recrystallisation nucleation sites on texture weakening in a magnesium alloy: Part 1- double twins

Individual effect of recrystallisation nucleation sites on texture weakening in a magnesium alloy: Part 2- shear bands

“…2. The deformation twin density was lower in sample SST4H with an average grain size of 35 mm than the sample SST1H studied in our previous work [20]. Fig.…”

“…After 285s, the recrystallised volume fraction was 23.0%, which was much faster than sample SST1H, reported in Ref. [20] and SST24H, reported in Ref. [11 ].…”

“…The WE43 alloy examined is the same as used in our previous work [11,20,29]. A rectangular plate 50 (extrusion direction) Â 25 Â 6mm 3 was cut from the extruded bar for heat treatment and cold rolling.…”

“…[11,20]. The EBSD scans of the same area in sample SST10M were taken after cold rolling and after 300s, 600s, 1020s, 2760s, and 9960s annealing at 490 C. Similarly, the EBSD scans of sample SST4H were collected after cold rolling and after 285s, 585s, 975s, 1575s, 2775s, and 5175s annealing at 490 C. In addition, another two recrystallised cold rolled SST4H (one was annealed at 450 C for 5400s and the other one was annealed at 545 C for 840s) were also examined by EBSD to explore the effect of annealing temperatures on recrystallised texture.…”

“…Nevertheless, a key issue to understanding the RE texture is to understand the location of the nucleation site(s) and/or subsequent growth of corresponding recrystallised grains that lead to the formation of a RE texture. In an accompanying paper [20] the individual effect of recrystallisation sites, in particular double twins, on the weakening of the texture in WE43 alloy were systematically investigated. The results unequivocally demonstrated that recrystallisation within double twins was the main contribution to the final RE texture.…”