When 10:30 AM - 11:30 AM Sep 07, 2018
Where 1571 G.G. Brown
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New Insights into Metallic Alloy Microstructural Evolution by In-situ Characterization


Amy J. Clarke
Department of Metallurgical and Materials Engineering, Colorado School of Mines

Structure, processing, property, and performance relationships are the cornerstone of materials science and engineering. Yet, we are usually left to infer what, when, how, and why performance degrades and failures occur.  Today, state-of-the-art characterization techniques available in the laboratory and at national user facilities are enabling unprecedented, real-time studies of metallic alloys during processing, deformation, and simulated service and manufacturing.  Solidification is critical to processes like casting and additive manufacturing and the manufacture of metallic alloy components we use in our everyday lives. The use of x-rays, protons, and electrons to study multiscale solidification dynamics in metallic alloys during processing is highlighted.  These experimental results are used to inform, develop, and validate computational models at the same length- and timescales.  The impact of solidification on subsequent solid-state microstructural evolution is also explored.  The new knowledge gained by in-situ characterization will aid the prediction and control of metallic alloy microstructures and properties by design with advanced manufacturing. 

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