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ASM International Webinar

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Date and time: Wednesday, May 4, 2016 1:00 pm Eastern Daylight Time (New York, GMT-04:00) 
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Duration: 1 hour

Speaker: Paul Mason and Prof. John DuPont, FASM

For more than 30 years, CALPHAD-based tools have been used to accelerate materials design and process improvement. CALPHAD is based on relating the underlying thermodynamics and kinetics of a system to predict the phases that can form and the amounts and compositions of those phases in multicomponent systems of industrial relevance. CALPHAD-based tools can be used to deepen understanding of chemistry for welding and joining applications including:
• Liquid-slag interactions and formation of inclusions
• Liquid-solid interactions
• Weld metal solidification paths and temperature ranges
• Microsegregation during solidification
• Prediction of HAZ grain boundary liquation
• Formation of precipitate phases at dissimilar welds
• Optimization of filler materials
• Assessing weldability of alloys
• Post-weld heat treatment and more

In this webinar, attendees will learn about:
• Underlying concepts of the CALPHAD approach
• How CALPHAD can be applied to welding and joining
• Microsegregation in welds and its influence on precipitation and creep properties
• Selection of filler metals
• Design of post-weld heat treatments
• Development of improved dissimilar metal welds

Paul Mason graduated in 1989 from South Bank University in London with an Honors degree in Physical Sciences and Scientific Computing. Upon graduation, he joined the Atomic Energy Research Establishment at Harwell and worked in the area of civil nuclear power for 14 years focusing on materials R&D issues, particularly at high temperatures.
Paul began his career mostly involved in experimental work and then moved into the modeling realm. In 2004, Paul was appointed president of Thermo-Calc Software Inc. when the Swedish based Thermo-Calc Software AB started a U.S. subsidiary. Since this time, Paul has been responsible for marketing and sales, technical support, training, and customer relations for the North American market.

Prof. DuPont is currently the R.D. Stout Distinguished Professor of Materials Science & Engineering at Lehigh University. He is also Associate Director of Lehigh’s Energy Research Center, holds a joint appointment in the Mechanical Engineering Department, and is the Site Director for the National Science Foundation Manufacturing and Materials Joining Innovation Center. His current research, teaching, and consulting activities cover areas of welding metallurgy, failure analysis and product litigation, solidification, and alloy development. He has published over 300 technical articles in these areas. He teaches courses in Welding Metallurgy, Failure Analysis, Introduction to Materials, Diffusion and Phase Transformations, Materials Selection, and Advanced Solidification. Prof. DuPont is a Fellow of ASM International and the American Welding Society.