Rifai, M., and H. Miyamoto. “Effect of Strain Energy on the Grain Growth Behaviour of Ultrafine-Grained Iron-Chromium Alloy by Equal Channel Angular Pressing”. Journal of Mechanical Engineering and Sciences, vol. 14, no. 3, Sept. 2020, pp. 7049-57, doi:10.15282/jmes.14.3.2020.07.0552.