Corrosion fatigue assessment of extruded magnesium alloys AZ31 and ME20

Martin Klein, born in 1987, studied Chemical Engineering with a focus on Technical Chemistry at Hochschule Niederrhein in Krefeld, Germany, where he received a Masters' degree in August 2012. Since then, he has been working as a research assistant at Materials Test Engineering (WPT) of TU Dortmund University, Germany, working in the field of corrosion and corrosion fatigue testing.

Philipp Wittke, born in 1982, studied Mechanical Engineering with specialization in Materials Science and Engineering at Ruhr-Universität Bochum (RUB), Germany. After his diploma thesis, he was a scientific assistant for two months at Werkstoffprüfung at RUB and, since September 2011, he has been working as a scientific assistant at Materials Test Engineering (WPT) of TU Dortmund University, Germany. Since March 2014, he is also serving as group leader of Light Metals at WPT, where he is working in the field of destructive materials testing.

Dr. Roland Hoppe, born in 1968, studied Physics at Christian-Albrechts University in Kiel, Germany. Since his Diploma in 2002, he has been working as a research scientist at the Helmholtz-Zentrum, Geesthacht (HZG), Germany. After working at the Department of Metalphysics, including finishing his PhD on deformation and fatigue induced internal stresses of TiAl alloys, he changed to the Magnesium Innovation Centre at HZG and since then, he has been working on the process and alloy development of magnesium wrought alloys.

Dr. Dietmar Letzig, born in 1961, studied Physics at Christian-Albrechts University in Kiel, Germany, and at University Hamburg, Germany. From 1989 to 1995, he worked as a scientist in the Department of Physical Metallurgy at Max-Planck Institute for Iron Research in Düsseldorf, Germany, and obtained his PhD on intermetallic phases at Technical University RWTH Aachen, Germany in 1995. After that, he was employed as a research scientist in the R&D Center at Alcan International Limited in Banbury, UK, till 2000, and developed new 6xxx series alloys and their processing for the European automotive manufacturing system. Since then, he is head of the Department Wrought Magnesium Alloys at the Helmholtz-Zentrum, Geesthacht (HZG), Germany. He is the author of many papers in peer-reviewed scientific journals and proceedings of international conferences. His area of expertise is the process-microstructure and process-property relationship of lightweight materials, especially of wrought magnesium alloys. He is leading fundamental as well as application-oriented research projects in the field of metal forming processes and is an expert in the processing of magnesium sheet via twin roll casting technology and their performance optimization.

Prof. Dr.-Ing. Frank Walther, born in 1970, studied Mechanical Engineering majoring in Materials Science and Engineering at TU Kaiserslautern University, Germany. There he finished his PhD on the fatigue assessment of railway wheel steels in 2002 and his habilitation on physical measurement techniques for microstructural-based fatigue assessment and lifetime calculation of metals in 2007. At Schaeffler AG in Herzogenaurach, Germany, he took responsibility for Public Private Partnership within Corporate Development from 2008 to 2010. Since 2010, he is Professor for Materials Test Engineering (WPT) at TU Dortmund University, Germany. His research portfolio includes determination of structure-property relationships of metal- and polymer-based materials and components under fatigue loading from LCF to VHCF range, taking the influence of manufacturing and joining processes as well as service loading and corrosion deterioration into account.