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GRX-810: NASA High Temperature Alloy Development for Additive Manufacturing High-entropy alloys, and by extension, medium entropy alloys are an exciting new class of materials due to their impressive mechanical properties, especially at cryogenic and elevated temperatures. In this study, a novel oxide dispersion strengthened (ODS) NiCoCr-based alloy is presented which exhibits exceptional high temperature properties compared to conventional wrought superalloys. This new ODS alloy, GRX-810, leverages additive manufacturing to disperse nanoscale Y2O3 particles throughout the microstructure without the use of resource intensive processing steps, such as mechanical alloying. Microstructural and mechanical characterization confirms the successful incorporation and dispersion of nano-scale oxides throughout the build volume. As a result, this recently discovered processing route presents a new alloy design and production path that is synergistic between additive manufacturing and dispersion strengthening, possibly enabling a new generation of high-performance alloys.
Document ID
20220013032
Document Type
Presentation
Authors
Tim Smith
(Glenn Research Center Cleveland, Ohio, United States)
Date Acquired
August 23, 2022
Subject Category
Chemistry And Materials (General)
Composite Materials
Meeting Information
Meeting: Lawrence Livermore National Lab Seminar
Location: Virtual
Country: US
Start Date: August 31, 2022
Sponsors: Lawrence Livermore National Laboratory
Funding Number(s)
WBS: 109492.02.03.09.02.03
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Technical Review
NASA Peer Committee
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