Numerical and experimental investigations on shot-peened high-strength steel by means of hole drilling, X-ray, synchrotron and neutron diffraction analysis

Dr.-Ing. Majid Farajian, born in 1976, received his BSc in Mechanical Engineering from Tehran Polytechnic, Iran, and his MSc in Materials Processing from the Royal Institute of Technology in Stockholm, Sweden. He received his PhD from the Faculty of Mechanical Engineering of the University of Braunschweig, Germany in 2011. After two years post-doctoral research activities, he continued his work in the field of fatigue and residual stresses at the Fraunhofer Institute for Mechanics of Materials IWM in Freiburg, Germany. Since then, he is the head of the team “Component Strength” at the Fraunhofer IWM.

Dr. Volker Hardenacke, born in 1980, received his first degree in Engineering Solid Mechanics from University of Siegen, Germany in 2007. Since then, he has been a researcher at the Fraunhofer Institute for Solid Mechanics, Freiburg, Germany, where he received his PhD in 2015.

Dr. Wulf Pfeiffer studied Mechanical Engineering and Materials Science at Technical University of Karlsruhe, Germany. In 1980, he joined the Fraunhofer Institute for Mechanics of Materials IWM in Freiburg, Germany. In 1989, he became the head of the group “Surface treatment” which dealt with mechanical treatment, plasma nitriding and plasma enhanced coating techniques. In the following years, he specialized on the influence of machining and wear on the near surface characteristics of high strength ceramics. In 1993, he submitted his doctoral thesis on “Characterization and Assessment of Hard Machined Ceramics Using X-ray Diffraction and Fracture Mechanical Methods”. In 2004, he became Head of the business group “Process and Material Assessment”, in 2010, he became Head of the business group ”Material Assessment, Life Time Concepts”. The group “Microstructure, Residual Stresses”, which he also leads, focusses on environmental degradation of materials.

Dr. Manuela Klaus, born in 1978, received her diploma in Materials Science and her PhD from the Faculty of Materials Science and Technology of the Technical University in Berlin, Germany. Since that time, she is a scientific assistant at Helmholtz Center Berlin, where she is responsible for the synchrotron beamline EDDI for energy dispersive diffraction. Her special research interest is focussed on the depth resolved analysis of residual stresses by X-ray diffraction.

Dr. Joana Rebelo Kornmeier, born in 1969, received her first degree in Engineering Physics from the Physic Department, Coimbra University, Portugal in 1992. Her Master in Technological Physics was concluded in 1995, and her PhD in Technological Physics in 2002, both were received atfUniversity of Coimbra. After two years of post-doctoral research activities at Forschungs-Neutronenquelle Heinz Maier-Leibnitz (FRM II), in cooperation with EADS Space Transportation GmbH Ottobrunn, Germany, she is currently working as instrument scientist at the material science diffractometer STRESS-SPEC at FRM II of Technische Universität Munich, Germany.