About this Abstract |
Meeting |
MS&T22: Materials Science & Technology
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Symposium
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Additive Manufacturing of Metals: Microstructure, Properties and Alloy Development
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Presentation Title |
Suitability of CoCrFeMn(Ni3Al)x High Entropy Alloys for Additive Manufacturing |
Author(s) |
Zachary Sims, Aurelien Perron, Alfred Amon, Hunter Henderson, Michael Thompson, Max Neveau, Orlando Rios, Scott McCall |
On-Site Speaker (Planned) |
Zachary Sims |
Abstract Scope |
High entropy alloys design continues to be a focus of metallurgical research targeted at next generation applications. The complex manufacturing processes needed to produce these materials remain a barrier to adoption. Additive manufacturing is emerging as a strong candidate for achieving net shape geometry. Expanding the number of families assessed for suitability to additive manufacturing is a key step towards realizing the potential of high entropy materials in application to achieve increased strength, higher corrosion resistance, and better elevated temperature performance compared to contemporary materials. The CoCrFeMn(Ni3Al)x alloy family is tunable to single phase or dual phase with varying (Ni3Al)x additions and heat-treatment. The results of CALPHAD modeling, laser traces, hardness measurements, phase compositions, and microstructural analysis will demonstrate that the CoCrFeMn(Ni3Al)x family is compatible with additive manufacturing.
This work was performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344. |