Grain size and texture changes of magnesium alloy AZ31 during multi-directional forging

Influence of texture and grain size on the room-temperature ductility and tensile behavior in a Mg–Gd–Zn alloy processed by rolling and forging

“…3c), which appears to be the result of multi-axial training characteristic of the forging process [21] employed in this work; Furthermore, Gd, as a famous randomizing texture addition [5,6,22], should also make contribution to the random texture of the GZ31-F sample. The maximum intensity of (0 0 0 2) pole figure is 2.73 m.r.d.…”

Microstructure and mechanical properties of ZK21 magnesium alloy fabricated by multiple forging at different strain rates

“…2, more and more grain boundaries can block the dislocation motion as the increasing DRX extent and results in the strength increase, meanwhile the refinement and increasing homogeneity of the microstructure caused by DRX is ascribed to the elongation increase. Moreover, the lower texture might be related to the increasing elongation, since MF was reported to be an efficient technique to produce fine grain materials with lower texture [14,20]. However, the evolution of mechanical properties for HSRMFed samples was obviously different from that of LSRMFed samples as illustrated in Fig.…”

“…There are recent reports on achieving grain refinement and improved mechanical properties of such alloys fabricated by severe plastic deformation (SPD) techniques such as accumulative roll bonding (ARB), high-pressure torsion (HPT), cyclic extrusion compression (CEC), equal channel angular pressing (ECAP), severe rolling (SR) and multiple forging (MF) [5][6][7][8][9][10]. Of these, MF is a technique that is more compatible with producing large bulk samples compared with other SPD techniques, which have been used for refinement of microstructure in magnesium at low strain rates [11][12][13][14][15][16]. MF process at high strain rates was desirable for fabrication of wrought products because of higher production efficiencies.…”

Influence of extrusion parameters on drilling machinability of AZ31 magnesium alloy

“…With this method, the alloy gains high strength and ductility at room temperature. Therefore, wrought processes such as forging, 9,10 rolling, 11,12 extrusion, 13,14 and severe plastic deformation [15][16][17] are employed to obtain finer grain-sized of Mg alloys. 8,18,19 Thanks to these processes, the strength, and elongation of wrought magnesium alloys are higher than those of casted magnesium alloys.…”