Technical Program

This international congress will provide a forum for presentations and discussions centering on a number of HEA-related topics, including those listed below:

Design & Processing

• Computational modeling
• Fundamental theory of HEA
• HEA thin films, coatings
• High entropy ceramics
• Lightweight HEAs, Refractory HEAs
• Processing of HEAs
• Upscaling, application domains

Characterization & Properties

• Computational modeling of HEA properties
• Environmental resistance
• Fracture, fatigue, hydrogen embrittlement in HEAs
• Functional properties
• High temperature mechanical response, creep
• High-throughput experimental methods
• Irradiation resistance
• Mechanical properties of HEAs
• New characterization techniques for HEAs

Plenary Speakers

Amy Clarke, Colorado School of Mines, USA
"Applying Physical Metallurgy Principles to Multi-Principal Element Alloys"
Advances in physical metallurgy have resulted in societal advancements, such as the Bronze and Iron Ages. Much of modern physical metallurgy, i.e., processing-structure-property relationships in metals and alloys, has been developed based upon the outcomes of conventional processes like casting or wrought (thermomechanical) processing of alloys designed for these purposes. Multi-principal element alloys (MPEAs) have recently emerged onto the scene, given their potential for remarkable properties (e.g., exceptional strength/toughness combinations) unattainable by conventional alloys. For example, refractory multi-principal element alloys (RMPEAs) hold the promise to withstand continuous operation at ultrahigh temperatures above 1200 °C needed for advanced turbine engines and hypersonic flight. Opportunities exist to apply physical metallurgy principles established with conventional alloys (e.g., steels) and processes to MPEAs, but MPEAs are also challenging our current paradigm. Here we highlight the design of MPEAs for performance in extreme environments in the context of physical metallurgy principles.

Maryam Ghazisaeidi, Ohio State University, USA
"The Interplay Between Phase Transformation and Mechanical Properties in High Entropy Alloys"
Phase prediction in multicomponent alloys remains one of the most fundamental challenges. Navigating the vast compositional space of these alloys requires a predictive capability to efficiently guide alloy discovery and microstructure design. Recently we have developed a Multicell Monte Carlo (MC)^2 method, based on first-principles calculations, to study phase formation in multicomponent alloys. This method is particularly powerful when applied to multicomponent systems, for which phase diagrams do not exist. First, I introduce the (MC)^2 method and present its successful prediction of the stable phases of known binary systems. Next, I will present the application of (MC)^2 to high entropy alloys and discuss the effect of emerging stable phases on deformation mechanisms and consequently the overall mechanical behavior.

Elsa Olivetti, Massachusetts Institute of Technology, USA
"Materials Systems Consideration in Design of High Entropy Alloys"
We suggest applying a lens of practicality to high entropy alloy design related to alloy economics and resource usage issues. A framework for HEA materials selection could assist the metallurgical community in screening for HEAs with feasible implementation possibilities by identifying unsuitable alloying elements based on price or metrics of supply availability. For some metrics, such as price volatility, the elemental diversification in HEAs could prove beneficial, while for others, such as recyclability, elemental breadth introduces significant challenges.

Invited Speakers

The technical program will include the invited speakers listed below.

Raj Banerjee, University of North Texas, USA

Matthew Barnett, Deakin University, Australia

Nick Birbilis, The Australian National University, Australia

Patrick L.J. Conway, Jönköping University, Sweden

Andrew Detor, GE Research, USA

Kathy Flores, Washington University in St. Louis, USA

Amy Gandy, University of Sheffield, UK

Dan Gianola, University of California, Santa Barbara, USA

Murakami Hideyuki, National Institute for Materials Science, Japan

Kevin J. Laws, UNSW, Sydney, Australia

Zhiming Li, Central South University; Max-Planck-Institut Fur Eisenforschung, China

Anna Manzoni, Bundesanstalt für Materialforschung und -prüfung, Germany

Francesco Maresca, Ecole Polytechnique Federale de Lausanne (EPFL), Netherlands

Andrew Minor, University of California, Berkeley, USA

Dan Miracle, Air Force Research Laboratory, USA

B.S. Murty, Indian Institute of Technology Madras, India

Hyunseok Oh, Massachusetts Institute of Technology, USA

Noah Philips, ATI, USA

Ying Yang, Oak Ridge National Laboratory, USA

Abstract Submissions

The abstract deadline for HEA 2021 has now passed. If you have any questions regarding abstract submission, send an e-mail to TMS Programming Staff.

You may be interested in viewing the HEA 2019 Final Program (PDF).

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