Gradient Microstructure in Laser Shock Peened Materials

Liucheng Zhou, born in 1987, is an associate professor at Science and Technology on Plasma Dynamics Laboratory, Air Force Engineering University, Xi’an, China. He received a PhD in Aeronautical and Astronautical Science and Technology from Air Force Engineering University in 2013, and his doctoral dissertation was awarded the Excellent Doctoral Dissertation of the PLA (2015) and the Excellent Doctoral Dissertation of China Mechanical Engineering Society (2015). In 2017, he was selected into the Youth Talent Supportive Project of China Association for Science and Technology, and won the second prize of National Technical Invention Award (2015) and the first prize of Technical Invention of the Aeronautical Society (2014). He has been engaged in research on surface strengthening, repairing and remanufacturing of aviation components and structural strength evaluation, etc., presided over National Major Special Projects of the Aero Engine and Gas Turbine, the National Key Research and Development Program, the Youth Talent Supportive Project of Chinese Association for Science and Technology and the National Natural Science Foundation of China. He has published 38 papers and 7 invention patents applied or authorized.Weifeng He, received the M.S. degree in aircraft design in 2003 and Ph.D. degree in aerospace science and technology in 2006 in the Air Force Engineering University, Xi'an, China. He is now a professor in the science and technology on plasma dynamics laboratory. His research interests include laser manufacture, surface treatment techniques and structural strength.

• General Introduction.- Characteristics of Laser-induced Plasma Shock Wave in Metal Materials.- Gradient Microstructure Characteristics and Formation Mechanism of Laser Shock Peening in Titanium Alloy.- Improvement of High Cycle Fatigue Performance in the Titanium Alloy by LSP-induced Gradient Microstructure.- Improvement of High Temperature Fatigue Performance in Nickel-based Alloy by LSP-induced Gradient Microstructure.- Mechanical Behavior and Strengthening Mechanism of LSP-induced Gradient Microstructure in Metal Materials.- Study on the Compound Process of Laser Shock Peening and the Strengthening Mechanism on the Aero-engine Blades.