题 目：Hydrogen Embrittlement in BCC Metals
报告人：Prof. Burak Bal Abdullah Gül University (Turkey)
时间：2025年7月3日星期四下午13:30
地点：上海大学延长校区力学所200学术报告厅
专家简介
Dr. Burak Bal is a Professor of Mechanical Engineering at Abdullah Gül University in Turkey. He received his Ph.D. in Mechanical Engineering from Koç University and his B.Sc. from Middle East Technical University. His research focuses on the mechanical behavior of materials under extreme environments, with expertise in the relationship between microstructure and mechanical properties, multiscale and multiphysics modeling. He has authored numerous publications in high-impact international journals and has led or contributed to various national and international research projects supported by agencies such as TÜBİTAK. In addition to his academic contributions, he has also collaborated with industry through consultancy and applied research. Dr. Bal is actively involved in teaching and mentoring at both undergraduate and graduate levels, contributing to the development of future researchers and engineers.
摘要信息
Understanding the interaction between hydrogen and dislocations is critical to addressing hydrogen embrittlement in body-centered cubic (bcc) metals such as iron. In this study, a phenomenological mobility law is developed for edge dislocations in bcc Fe, incorporating the influence of hydrogen, based on insights derived from molecular dynamics (MD) simulations. The simulations capture the behavior of dislocations under varying hydrogen concentrations, applied stresses, and temperatures, providing a detailed view of how hydrogen alters dislocation mobility.This study contributes to the multiscale understanding of hydrogen embrittlement mechanisms and offers a practical framework for predictive modeling of hydrogen effects in structural steels.
