@misc{jo_excellent_age_2020, author={Jo, S., Whitmore, L., Woo, S., Aramburu, A., Letzig, D., Yi, S.}, title={Excellent age hardenability with the controllable microstructure of AXW100 magnesium sheet alloy}, year={2020}, howpublished = {journal article}, doi = {https://doi.org/10.1038/s41598-020-79390-z}, abstract = {Age-hardenability and corresponding improvement of the mechanical properties of Mg–1Al–0.7Ca and Mg–1Al–0.7Ca–0.7Y alloy sheets are addressed with respect to the microstructure and texture evolution during thermomechanical treatments. A fine grain structure and weak texture with the basal pole split into the sheet transverse direction are retained in the Mg–1Al–0.7Ca–0.7Y sheet even after the homogenization at 500 °C, due to the grain boundary pinning by Y-containing precipitates possessing a high thermal stability. Contrarily, the Mg–1Al–0.7Ca sheet shows a coarse microstructure and basal-type texture after the homogenization. The peak-aged condition is attained after the aging at 250 °C for 1800 s of both homogenized sheets, while the Y-containing sheet shows a higher hardness than the Mg–1Al–0.7Ca sheet. TEM analysis and thermodynamic calculation show the formation of metastable precipitates composed of Al, Ca, Y and Mg in the Mg–1Al–0.7Ca–0.7Y sheet at the homogenized and peak-aged conditions. A significant increase in the yield strength is obtained in the peak-aged condition from 162 MPa after the homogenization to 244 MPa, which arises from the increased size and number density of the precipitates. The high age-hardenability of the Mg–1Al–0.7Ca–0.7Y sheet attributes to the superior mechanical properties with an improved ductility promoted by the weak texture.}, note = {Online available at: \url{https://doi.org/10.1038/s41598-020-79390-z} (DOI). Jo, S.; Whitmore, L.; Woo, S.; Aramburu, A.; Letzig, D.; Yi, S.: Excellent age hardenability with the controllable microstructure of AXW100 magnesium sheet alloy. Scientific Reports. 2020. vol. 10, 22413. DOI: 10.1038/s41598-020-79390-z}}