|About this Abstract
||2022 TMS Annual Meeting & Exhibition
||Advanced Characterization Techniques for Quantifying and Modeling Deformation
||Characterization of Heat-resistant Steels and Alloys for Life-prediction Modeling
||Yukinori Yamamoto, David Hoelzer, Michael J Lance, Michael P Brady, Edgar Lara-Curzio, Qing-Qiang Ren, Jonathan D Poplawsky, Arul Kumar Mariyappan, Ricardo A Lebensohn, Laurent Capolungo, Michael V Glazoff, Michael Gao, Paul Jablonski, Jeffrey A Hawk
|On-Site Speaker (Planned)
A multi-national laboratory project to establish the accelerated methods for designing and developing high-temperature structural alloys for “extreme environments” is currently underway. One key element of this project involves the fabrication of model alloys (347H stainless steels and alumina-forming austenitic steels) with a reliable pedigree, their evaluation through isothermal aging and uni- and multi-axial creep tests to monitor their response as a function of temperature and stress, and then correlating the results from these tests with microstructure through multi-scale characterization using SEM, TEM, XRD, and APT. The results from these activities are being used to support the formulation and validation of newly developed, physics-based life-prediction modeling of precipitation-strengthening heat-resistant steels and alloys, which will also be presented. Research sponsored by the U.S. DOE, Office of Fossil Energy and Carbon Management, the Crosscutting Technology High Performance Materials Research Program. ORNL’s CNMS, a DOE-Office of Science user facility is also acknowledged.
||Computational Materials Science & Engineering, High-Temperature Materials, Characterization