Corrosion fatigue endurance of steel 45 after surface nanostructuring by mechanical pulse treatment in different environments
The influence of the technological environment (TE) during the formation of a nanocrystalline structure (NCS) on the normalized carbon steel 45 by mechanical pulse treatment (MPT) on the parameters of the NCS and resistance to multicycle fatigue and corrosion-fatigue failure in a 3% NaCl aqueous solution was investigated. On the specimens, a surface layer with a ferritic-austenitic NCS and a ferrite grain size of 14 and 23 nm was obtained after MPT in mineral oil and air, respectively. It was established that the fatigue endurance of steel with NCS is significantly higher than that without a surface treated layer, and practically does not depend on the type of applied TE during MPT. The highest resistance to corrosion fatigue is characterized by steel with a surface NCS formed by MPT in oil. The obtained results were analyzed taking into account the NCS characteristics, the microhardness of the strengthened layer, the distribution of residual stresses and chemical elements (Н, N, C and O).
Authors
- V. І. Kyryliv (ORCID: https://orcid.org/0000-0002-8785-5284)
- B. Tsizh (ORCID: https://orcid.org/0000-0002-1319-1016)
- Yaroslav Kyryliv (ORCID: https://orcid.org/0000-0002-6622-9209)
- Olha Zvirko (ORCID: https://orcid.org/0000-0002-6973-6804)
- О. V. Maksymiv (ORCID: https://orcid.org/0000-0002-2461-8994)
Publication Details
- Journal
- Physicochemical Mechanics of Materials
- Published
- 2024-09-02
- DOI
- https://doi.org/10.15407/pcmm2024.04.115
- Primary Topic
- Surface Treatment and Residual Stress
- Type
- article
- Field-Weighted Citation Impact
- 0.00