ESOMAT 2022 – 5 – 9 September 2022 Ankara Turkey
Session in honor of
Prof. Marcel Berveiller
Micromechanical approaches and scale transition techniques applied to behavior
modeling of SMAs and TRIP steels

Prof. Marcel Berveiller passed away on January 2019. During his eminent career, he found inspiration in crystal plasticity to study phase transition and new ideas in phase transition for plasticity, he made numerous achievements as the development of a multiple site self-consistent scheme. In August 1982, he attended the ICOMAT conference held in Leuven, and got immediately very excited about shape memory alloys. Foreseen the potential for engineering applications of these materials he decided to use his micromechanical skills to study the martensitic transformation in his newly established lab. This research topic took a large place in his scientific activities producing many achievements, like the determination of elastic interaction between martensitic variants, the self-consistent modeling of the superelastic behavior and the description of moving inelastic discontinuities. He established at Metz a large research group working on martensitic transformation from micromechanical modeling to shape memory applications. In addition, he succeeded to combine his curiosity about both plasticity and phase transformation with the development of a micromechanical modeling of Transformation Induced plasticity in TRIP steels. Nimesis Technology©, nowadays a very active company working in the shape memory technology, is a spin-off of this research activity. Marcel Berveiller was in the European Advisory Committee of the Bochum Conference on Martensitic Transformation in 1988 that initiated the ESOMAT conference series. He organized in 1995 the first international conference devoted to the mechanical behavior of material with solid-solid phase transformation, the MECAMAT’95 conference of La Bresse (France). In collaboration with Franz Dieter Fischer, from Mountain University at Leoben (Austria), he organized at Udine (Italy), in 1995, the CISM courses and lectures 368 on “Mechanics of Solids with phase changes”. This session provides an update on topics related to the main contributions of the Prof. Marcel Berveiller on micromechanical approaches and scale transition techniques applied to materials presenting inelastic strains induced by phase transformation or by coupling phase transformation/ plastic gliding. The main concerned materials are SMA, TRIP and TWIP steels. Other materials fitting with these topics will be also considered.

Erhard Hornbogen

Erhard Hornbogen passed away in April 2020, after having reached the age of ninety. He grew up and went to school in Greiz, Germany, and studied metal physics as a student of Günter Wassermann at the University of Clausthal, where he worked on his PhD Thesis as a research associate from 1955 to 1957 and was the first to discover the shape memory effect in Cu-based alloys in 1956. Erhard Hornbogen founded the Institute for Materials at the Ruhr-University Bochum, where he was Chair for Materials Science from 1968 until 1995. The spectrum of his research activities at that time extended all the way from mechanical properties and grain boundaries of metals to his early TEM work on the molecular structures of semi-crystalline polymers, including the fundamental molecular processes which govern their deformation. His studies not only attracted numerous internationally highly regarded colleagues but also motivated his students to develop new ideas and concepts of their own. He motivated many of them to successfully pursue academic careers. As a researcher, he made important contributions to various fields, including martensitic transformations and shape memory alloys, light metals, particle strengthening, quasicrystals, effect of laser treatments on surface regions, dislocation reactions (ranging from fast shock loading to slow pairwise cutting high temperature plasticity of ordered phases), fractal analysis of microstructures, recycling, wear and much more. Erhard Hornbogen was an elected member of the North Rhine Westphalia Academy of Sciences and of the German Academy of Technical Sciences (ACATECH). He was an active member of the scientific boards of ESOMAT and ICOMAT (the European and International conference series on martensitic transformations). He was the recipient of numerous awards and honors from many major materials science communities (including the Masing Prize and the Heyn Award of the DGM, the TMS Mehl Medal, the fellowship as well as the Grossman Award of the ASM, the honorary membership of the Japanese Institute for Materials and an honorary doctorate from the University of Miskolc).