@article{oai:kyutech.repo.nii.ac.jp:00006998,
 author = {Horita, Zenji and 堀田, 善治 and Maruno, Daisuke and Ikeda, Yukimasa and Masuda, Takahiro and Tang, Yongpeng and Arita, Makoto and Higo, Yuji and Tange, Yoshinori and Ohishi, Yasuo},
 issue = {2},
 journal = {Materials Transactions},
 month = {Dec},
 note = {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 in JASRI (Japan Synchrotron Radiation Research Institute). Allotropic transformation of pure Ti was examined in terms of temperatures, pressures and imposed strain using a miniaturized HPS facility. The true pressure applied on the sample was estimated from the peak shift. Peak broadening due to local variation of pressure was reduced using white X-rays. The phase transformation from α phase to ω phase occurred at a pressure of ∼4.5 GPa. Straining by the HPS processing was effective to promote the transformation to the ω phase and to maintain the ω phase even at ambient pressure. The reverse transformation from ω phase to α phase occurred at a temperature of ∼110°C under ambient pressure, while under higher pressure as ∼4 GPa, the ω phase remained stable even at ∼170°C covered in this study. It was suggested that the reverse transformation from the ω phase to the α phase is controlled by thermal energy.},
 pages = {167--176},
 title = {In Situ Synchrotron X-ray Analysis: Application of High-Pressure Sliding Process to Ti Allotropic Transformation},
 volume = {62},
 year = {2020},
 yomi = {ホリタ, ゼンジ}
}