High-temperature low-cycle fatigue behavior of novel austenitic ODS steels
Source abstract
Abstract
Abstract The focus of this study is to investigate the low-cycle fatigue (LCF) behavior of two newly developed austenitic 17Cr13Ni–W ODS steels. The LCF tests were performed at 650 °C with strain amplitudes ranging from 0.4 to 0.9%. The cyclic stress response and the cyclic strain-life resistance were analyzed in detail and compared with two non-ODS austenitic stainless steels (304 and 316L(N)) and a ferritic-martensitic ODS steel based on T91. The austenitic ODS steels showed stabilized cyclic response after a slight initial cyclic hardening. Due to their high strength at elevated temperatures, the strain-life resistance became superior with decreasing total strain amplitude compared to the other materials considered.
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Research context
OpenAlex topics: Fusion materials and technologies · Nuclear Materials and Properties · Metallurgical Processes and Thermodynamics
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References (26)
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