<i>In Situ</i> Synchrotron X-ray Analysis: Application of High-Pressure Sliding Process to Ti Allotropic Transformation

In this study, severe plastic deformation through high-pressure sliding (HPS) was applied for in situ high-energy X-ray diffraction analysis at SPring-8 JASRI (Japan Synchrotron Radiation Research Institute). Allotropic transformation of pure Ti examined terms temperatures, pressures and imposed strain using a miniaturized HPS facility. The true pressure on the sample estimated from peak shift. Peak broadening due to local variation reduced white X-rays. phase ? ? occurred ?4.5 GPa. Straining by processing effective promote maintain even ambient pressure. reverse temperature ?110°C under pressure, while higher as ?4 GPa, remained stable ?170°C covered study. It suggested that is controlled thermal energy.