Datasets with tag: texture
| Dataset | Description | Authors | Tags | Published | Updated | Date |
|---|---|---|---|---|---|---|
| Coupling thermomechanical processing and alloy design to improve textures in Mg-Zn-Ca sheet alloys | The effect of Ca and Zn additions on the microstructure and texture evolution during thermomechanical processing of Mg-Zn-Ca sheet alloys was investigated. Plane strain compression testing in a Gleeble Thermomechanical simulator was used to physically simulate a 10-pass rolling schedule while allowing for careful control and monitoring of the processing parameters. Textures in the as-deformed ternary alloy samples demonstrate a weak maximum basal intensity and spreading in the transverse direction. Increasing the Zn content to 3 wt% in the ternary alloys resulted in samples that not only demonstrated weak textures in the as-deformed state, but in which static recrystallization promoted a further decrease in basal texture intensity. The evolution in texture during SRX is associated with as-deformed microstructures with broad grain orientation spreads and a low degree of recrystallization. Note 3/17/2021: There was an error when calibrating the scale bars for the optical images, this is currently being corrected. At this time, the scale bar is off by a factor of 2: if the scale bar reads 100 µm, the correct calibration is 200 µm. | Tracy Berman, John Allison | texture recrystallization thermomechanical processing Mg alloy sheet | 3 years ago | 1 day ago | 2025-07-09 14:41:36 |
| Characterization of recrystallized grains during static recrystallization of hot-compressed Mg-Zn-Ca alloys using in-situ far-field high-energy diffraction microscopy | Although rolled magnesium (Mg) alloys generally suffer from strong crystallographic textures and poor formability, adding Ca and Zn to magnesium sheet can result in a desirably weak recrystallization texture and improved formability. In this study, we explore the effect of Zn content on the static recrystallization of three 80% hot-compressed alloys, Mg-0.5Zn-0.1Ca wt.% (ZX050), Mg-1Zn-0.1Ca wt.% (ZX10) and Mg-3.2Zn-0.1Ca wt.% (ZX30), using far-field high-energy diffraction microscopy (ff-HEDM). Individual recrystallized grains are tracked and their 3D centroid, relative volume, and grain-averaged crystallographic orientation are measured during in-situ annealing. These measurements are used to compare the kinetics and texture evolution of recrystallized grains in ZX alloys as a function of Zn content. Fully recrystallized microstructures are observed for the ZX30 and the ZX10 alloys after annealing at 230ºC and 330ªC, respectively. In contrast, only a partially recrystallized microstructure for the ZX050 alloy is observed after >1 hour of annealing at 430ºC. The recrystallized grains also show slower growth rates for ZX050 as compared to ZX10 and ZX30. We also use the results to discuss the recrystallization grain textures, as well as the correlation between orientations and the nucleation and growth rates of recrystallized grains, both as a function of annealing time and Zn content. | REZA ROUMINA, Sangwon Lee, Tracy Berman, Kate Shanks, John Allison, Ashley Bucsek | Magnesium Recrystallization texture HEDM insitu | 1 month ago | 1 day ago | 2025-07-09 14:38:30 |