Date:
Tuesday, March 5, 2024
Time:
2:30 p.m. to 5:00 p.m.
Location:
Hyatt Regency Orlando, Regency O
Organizer
Carolyn Hansson, University of Waterloo
Four TMS members will deliver talks at this special session, which honors their achievements as recipients of this year’s Acta Materialia awards. All TMS2024 attendees are invited to attend this session and hear from award recipients.
Featured Speakers
Acta Materialia Gold Medal Lecture
"Nanostructure and Magnetic Materials"
Kazuhiro Hono
National Institute for Materials Science (NIMS)
About the Presentation
The properties of magnetic materials vary greatly depending on the nanostructure. The development of permanent magnets, soft magnetic materials, and magnetic recording media is all about controlling the nanostructure so that device properties can be produced from the intrinsic magnetic properties of the ferromagnetic phase. For example, L10-FePt was known as a ferromagnetic phase with high magnetocrystalline anisotropy, but no one thought that FePt could really be applied to magnetic recording media until we realized a FePt-C nanogranular structure in 2008. In this talk, Hono will review the atom probe study of nanocrystalline soft magnetic material, the development of FePt-C HAMR media born from the study of the coercivity of FePt thin film, and the development of Dy-free Nd-Fe-B high coercivity magnet inspired by the atomic-level grain boundary analysis of Nd-Fe-B magnets. Based on these examples, the importance of nanostructure analysis in the development of magnetic materials is discussed.
Acta Materialia Silver Medal Lecture
"Thermodynamic (in)Stability and Deformation Mechanisms of Refractory Complex Alloys"
Jean-Philippe Couzinie
University Paris Est-Créteil
About the Presentation
Alloy design based on multi-principal elements, mixed in (near) equiatomic proportions and stabilized by high-entropy is a breakthrough concept in metallurgy. Among the most interesting studied solutions, refractory complex concentrated alloys (RCCAs) with body-centered cubic (bcc) structures have received attention for high-temperature applications. The chemical complexity of those systems has a considerable influence on thermodynamic stability but also elementary deformation processes. Several open questions are still unsolved. In that framework, the talk will first give some insight into the plastic deformation processes in solid solutions of refractory systems with or without presence of B2-type order. Microstructural (in)stability of bcc+B2 microstructures will then be addressed and possible new strategies for the RCCAs development will finally be discussed with a special focus on materials solutions with interface-driven microstructures and finely distributed phases.
Acta Materialia Hollomon Award for Materials and Society
"Materials Research to Propel Us into an Environmentally Conscious Economy for Generations to Come"
Iver Anderson
Ames National Laboratory
About the Presentation
To honor the intent of the Hollomon Award, this lecture will focus on the research accomplishments and technology adoption examples that highlight the Materials and Society theme of the four-decade career that I am grateful to have shared with my students and colleagues. One of our major accomplishments is the invention of a widely adopted, environmentally friendly, Pb-free solder for electronic joining. Development is now underway of a metal-metal (Al/Ca) composite conductor for more efficient high voltage (especially DC) overhead transmission lines. Investigations of a gas atomization reaction synthesis (GARS) method are ongoing in our Lab to produce alloy powder that is transformed into oxide dispersion strengthened alloys for radiation-tolerant applications in C-free nuclear fission and fusion and for high-temperature hydrogen-fueled turbines. We are also working on powder processing of permanent magnet alloys with rare earths and RE-free to expand the supply of critical materials for electric vehicles.
Acta Materialia Mary Fortune Global Diversity Lecture
"Prioritizing Diversity and Inclusion for Achieving Excellence: An Embedded Approach"
Lynnette Madsen
Cornell University
About the Presentation
Inequities frequently stem from entrenched, often unconscious biases within organizational structures. Addressing and overcoming these biases necessitates a purposeful evaluation of our current organizational metrics and practices, comparing them to analogous institutions and the broader population. Implementing corrective measures, complemented by proactive recruitment strategies, can enhance representation and diversity. Subsequently, focusing on inclusion, fostering a sense of belonging, and creating ample opportunities are vital steps to enable individuals to flourish within the organizational ecosystem. This is not a mere parallel or sideline distraction from the pursuit of intellectual preeminence. On the contrary, it is a fundamental necessity for the expansive recruitment and cultivation of talent that is pivotal to achieving excellence.