Delphine Retraint

Delphine Retraint is a Professor at the University of Technology of Troyes (UTT) and former Head of the LASMIS Laboratory (2017-2020). Her research focuses on mechanical surface treatments including shot peening, laser peening, and Surface Mechanical Attrition Treatment (SMAT), with applications in nanostructures, residual stress analysis, and additive manufacturing post-processing. She utilizes neutron/X-ray diffraction methods to study mechanical properties, wear, and fatigue behavior.

Education

• PhD in Materials Science - Institut National Polytechnique de Grenoble (1995)
• Master's Degree in Materials Science - Institut National Polytechnique de Grenoble (1992)
• Engineering Degree in Surface Treatment and Materials - École Nationale Supérieure d'Électrochimie et d'Électrométallurgie de Grenoble (1992)

Professional Experience

• Professor at UTT (2011-present)
• Head of LASMIS Laboratory (2017-2020)
• Detached Researcher at CNRS/ICMMO, Paris Saclay University (2018-2019)
• Invited Researcher at University of New South Wales, Sydney (2010)
• Associate Professor at UTT (1997-2011)

Her recent publications demonstrate a strong focus on surface modification techniques, particularly SMAT, and their effects on material properties in aerospace alloys, biomedical materials, and additively manufactured components. Research consistently explores residual stress characterization, fatigue performance enhancement, and microstructure-property relationships across various metallic systems.

Laboratory Leadership

As former head of LASMIS Laboratory, she led research in mechanical and material engineering with focus areas including surface treatments, additive manufacturing, and advanced material characterization techniques. The laboratory maintains collaborations with international institutions including CNRS in France and UNSW in Australia.