Meeting Resources
High Entropy Alloys: Fundamentals, Alloy Design, Properties, and Potential Applications

November 8–10, 2022

Online Course

Live Online Instruction • 9:00 a.m. to 4:00 p.m. EST

On-Demand Access Closes December 12, 2022

Curriculum Flyer

Course Curriculum

The course will include six, half-day virtual modules, presented live or on-demand, with supporting course handout materials.

Course Schedule

The schedule is in Eastern Standard Time (UTC-5:00). Use the Time Zone Converter to translate event times into your local time zone.

Tues. 9:00 a.m. – 12:00 p.m., EST
Module 1: History, Overview, and Fundamentals of HEAs
Live instruction
Tues. 1:00 p.m. – 4:00 p.m., EST
Module 2: Classes of HEAs and Alloy Design
Live instruction
Wed. 9:00 a.m. – 12:00 p.m., EST
Module 3: Processing HEAs
Live instruction
Wed. 1:00 p.m. – 4:00 p.m., EST
Module 4: Properties
Live instruction
Thurs. 9:00 a.m. -12:00 p.m., EST
Module 5: Fundamental Theory and Computations Modelling
Live instruction
Thurs. 1:00 p.m. – 4:00 p.m., EST
Module 6: Application Domains
Live instruction

Go to the Instructors section to view bios and learn more about their research and professional experience.

Course Modules

Module 1: History, Overview, and Fundamentals of HEAs

Instructor: Daniel B. Miracle (Lead Instructor), Air Force Research Laboratory

This module introduces high entropy alloys (HEAs) and provides a foundation for the subsequent modules.

Learning Objectives

  • Learn a history of HEAs
  • Gain a fundamental understanding of HEAs and their applications

Format: Live online lecture

Module 2: Classes of HEAs and Alloy Design

Instructors: C. Cem Tasan, Massachusetts Institute of Technology, Steels; Elizabeth Opila, University of Virginia, High Entropy Ceramics

In this module, connections between steels and high entropy alloys will be discussed, focusing specifically on future opportunities for both metals classes. Differences between high entropy alloys and high entropy ceramics will be presented. HE ceramic property manipulation and applications enabled by the high entropy approach will be discussed.

Learning Objectives

  • Understand the general classification of steels, HEAs, and HE ceramics
  • Learn challenges in pushing property combinations in steels and ceramics
  • Discuss new issues related to HEAs and HE Ceramics
  • Explore connections and opportunities

Format: Lecture and break-out discussions

Module 3: Processing HEAs

InstructorsAmy Clarke, Colorado School of Mines, Conventional Process; Noah Philips, ATI Specialty Alloys and Components, Powder, Weight, Casting–Industrial Perspective; Kester Clarke, Colorado School of Mines, TMP; Francisco Coury, Federal University of São Carlos, Calphad and SSN Modeling

This module will discuss processing issues related to HEAs.

Learning Objectives

  • Discuss contamination control and impacts for reactive/refractory metals
  • Understand high purity melting processes (VAR, PAM, EB)
  • Understand powder considerations at large scale (synthesis, yield, contamination)
  • Discuss remelting and the challenges therein, including supply chain risks

Format: Live online lecture

Module 4: Properties

Instructors: John Lewandowski, Case Western Reserve University, Mechanical Properties; Mitra Taheri, Johns Hopkins University, Functional Properties; John R. Scully, University of Virginia, Electro-Chemical Properties (corrosion, catalysis); Mike Titus, Purdue University, High Temperature Oxidation

High entropy alloys have afforded new opportunities for enabling novel material properties. This module will focus on the most common materials properties studied in high entropy alloys: mechanical properties, functional properties, electro-chemical properties, and high temperature oxidation. Comparisons of materials properties will be made to conventional alloys, and processing-microstructure-properties relationships will be identified in select high entropy alloy systems.

Furthermore, new methods for interrogating these properties will be presented. HEA nano-, micro- structure, composition, and processing are connected with electrochemical properties. Methods of interrogation of electrochemical properties of HEAs are briefly discussed.

Learning Objectives

  • Apply the structure-property paradigm to HEAs to elucidate their various electrochemical properties. Thermodynamic and kinetic factors and test methods are incorporated in explanations.
  • Gain an overview of fundamental oxidation rate laws governing refractory elements and traditional alloys. Application of these laws with unique combinations of oxidation mechanisms that enable improved oxidation resistance in refractory high entropy alloys.

Format: Live online lecture delivery and (1-2) break out room exercises, live Q&A

Module 5: Fundamental Theory and Computational Modelling

Instructors: Taylor Sparks, University of Utah, Machine Learning; Celine Varvenne, Marseille University, Strength Prediction

This module will present an overview of machine learning approaches to high entropy alloys, alongside a detailed tutorial for applying data science to high entropy alloy systems.

Learning Objectives

  • Learn general data science best practices for implementing machine learning models
  • Identify and work with high entropy alloy data repositories, employ featurization, select algorithms, train models, analyze model performance metrics, explore model interpretability.

Format: Lecture and live joint coding sessions

Module 6: Application Domains

Instructor: Kevin Laws, The University of New South Wales; John "Hunter" Martin, HRL Laboratories; John Sharon, Raytheon Technologies

In the last session, participants will explore case studies on industry-guided approaches to application-focused alloy design and gain insights to the pathways to commercial viability.

Learning Objectives

  • Discuss design for application and functionality – a roadmap to industrial-viability. Understanding the key concerns and requirements in translating an alloy composition to industrial production and the consumer marketplace. Key areas of learning/understanding include market demand, cost/economic viability, industrial production viability, and consumer compliance.
  • Apply metrics to HEA development roadmap for industrial viability.

Format: Live online lecture set delivery, interactive roadmap application/case study examples of commercially viable HEAs.

For More Information

For more information about this course, please contact:

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