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Microstructure of a Heat-Resistant Austenitic Steel after Long-Term Use as Ultra-Supercritical Boiler Tube
2018
Journal of the Society of Materials Science Japan
It is important to understand the mechanical properties of the material used at the operating temperature for stable operation of a thermal power plant, and necessary to analyze the nanometer scale microstructure that governs the properties. We have performed microstructure characterization of KA-SUS304J1HTB austenitic steel from ultra-supercritical boiler tubes after 130,718 hour use whose designed steam condition was 873 K / 24.5 MPa. EPMA, EBSD and STEM observation revealed the presence of
doi:10.2472/jsms.67.789
fatcat:b7fpxs62ybbf5jul2j6pmwfbgy