Impact of Temperature on Low-Cycle Fatigue Characteristics of the HR6W Alloy

This paper presents the results of tests conducted on the HR6W (23Cr-45Ni-6W-Nb-Ti-B) alloy under low-cycle fatigue at room temperature and at 650 °C. Fatigue tests were carried out at constant values of the total strain ranges. The alloy under low-cycle fatigue showed cyclic strengthening both at r...

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Detalles Bibliográficos
Autores principales: Junak, Grzegorz, Marek, Anżelina, Paduchowicz, Michał
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8618730/
https://www.ncbi.nlm.nih.gov/pubmed/34832143
http://dx.doi.org/10.3390/ma14226741
Descripción
Sumario:This paper presents the results of tests conducted on the HR6W (23Cr-45Ni-6W-Nb-Ti-B) alloy under low-cycle fatigue at room temperature and at 650 °C. Fatigue tests were carried out at constant values of the total strain ranges. The alloy under low-cycle fatigue showed cyclic strengthening both at room temperature and at 650 °C. The degree of HR6W strengthening described by coefficient n’ was higher at higher temperatures. At the same time, its fatigue life N(f) at room temperature was, depending on the range of total strain adopted in the tests, several times higher than observed at 650 °C.

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