Séminaires > Advances in Understanding Environmental Degradation of Metals
Date : 11 décembre
Lieu : Amphi 100, MSI
Résumé :
Environmental degradation (corrosion, environmental embrittlement,…) of metals has been studied for over a century, yet continues to impact nearly every use of metals. There are several reasons for this. First, many environmental degradation issues have been primarily studied by industry, which tends to focus on solving an immediate problem but no further because they do not need to fully understand the phenomenon. Secondly, many environmental degradation phenomena are inherently complex, exhibiting different features at different length scales. Fortunately, a variety of techniques has allowed multiscale investigations that have delivered new insight into the mechanisms of these complex phenomena. This talk will cover a variety of examples from my own work and the literature to illustrate how new characterization techniques have been used to answer long-standing questions in the field of environmental degradation.
Bio :
May L Martin is a Materials Research Engineer at the National Institute of Standards and Technology (NIST) in Boulder, United States. She has been at NIST since 2017. She received her B.S. degree in Materials Science and Engineering from Cornell University in 2005, and completed her Ph.D. at the University of Illinois at Urbana Champaign in 2013. Her PhD thesis, under Prof. Ian Robertson, was on understanding the connection between fracture and the Hydrogen Enhanced Localized Plasticity (HELP) mechanism. From 2014 to 2016, she was an Alexander von Humboldt post-doctoral research fellow at the Georg August University of Göttingen, Germany, as a guest of Prof. Reiner Kirchheim. The work focused on different hydrogen effects, from Hydrogen-Induced Cracking (HIC) to hydrogen-enhanced grain growth. She is one of two current organizers of the International Hydrogen Conference, one of the oldest established conference series on hydrogen interactions with metals. Her research focuses on understanding the fracture processes of metals, especially under conditions of environmental degradation such as hydrogen embrittlement.