|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Magnesium Technology 2018
||Development of a High-resolution Synchrotron X-ray Diffraction Technique for Deformation Mechanism Studies of Magnesium Alloys
||Zhiyang Wang, Peter A. Lynch, Matthew Barnett, Justin Kimpton
|On-Site Speaker (Planned)
To promote the deformation mechanism studies of lightweight magnesium (Mg) alloys under uniaxial mechanical loading at room temperature, a rapid data acquisition high-resolution X-ray diffraction technique was developed using medium-energy (~20 keV) synchrotron X-rays. The capabilities and advantages of the technique are demonstrated by an in-situ compressive deformation study of an age-hardenable Mg–Sn alloy. The measurements confirmed the accurate determination of lattice strain responses of both -Mg and precipitate phases under compressive loads with a strain detection resolution of approximately 2 × 10–4. The activation and aging hardening of basal slip and tension twinning deformation modes in the materials were characterised and quantified using the technique. The obtained insights into the deformation behaviour of the materials with this technique will be useful for future development of advanced high strength age-hardenable Mg alloys.