T6 heat treatment of rheocasting 7075 Al alloy

Effect of heat treatments on the microhardness and tensile strength of Al–0.25 wt.% Zr alloy

“…On the other hand, when the aging temperature is lower, the maximum values of the microhardness and tensile strength become higher than those of higher aging temperature values (see Table 3). These results agree well with literature results [34,35,[46][47][48][49][50][51][52][53][54][55][56][57][58][59][60]. The microhardness and ultimate tensile strength values start to decrease when the over-aging (coarsening) start.…”

Microstructure and texture characterization of 7075 Al alloy during the SIMA process

“…These are common precipitates in Al-Zn-Mg-Cu alloys which are also observed in the microstructure of wrought 7075 sample (Fig. 3), and were similar to those reported by other researchers (Mahathaninwong et al, 2012;Xinyu et al, 2011;Yu and Li, 2011). Dimensions of these precipitates are commonly greater than 1 μm, and therefore during deformation a special zone develops in the vicinity of such non-deformable particles, which is characterized by a high local strain and high misorientation gradient.…”

Creep rupture behavior of semi-solid cast 7075-T6 Al alloy

“…[13]. Optimum T6 heat treatment conditions for the alloy were determined and the tensile properties of the alloy were found to be lower than that of commercial 7075-T651 Al alloy [14]. The present work explored the creep properties of semi-solid cast 7075-T6 Al alloy produced by the GISS process.…”