Roohollah Jamaati was born in Fereydoonkenar, Iran on July, 1983. He received his B.Sc. in Materials Engineering from Semnan University, Semnan, Iran in 2007 and the M.Sc. degree in Identification, Selection, and Fabrication Methods of Materials from Department of Materials Engineering, Isfahan University of Technology, Isfahan, Iran in 2010. Now, he is PhD student in Materials Engineering at Department of Materials Engineering, Isfahan University of Technology, Isfahan, Iran. He has many published articles on roll bonding and ARB processes. His main research interest is severe plastic deformation, nano-structured materials, deformation and annealing textures. He has done several industrial projects in collaboration with large steel companies in Iran. He is the reviewer of several journals such as Materials Science and Engineering A, Journal of Alloys and Compounds, Materials Characterization, Materials Research Bulletin, and Metallurgical and Materials Transactions A.