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- Title
Effectiveness of the ultrasonic impact treatment in the retardation of the fatigue crack growth for 2024-T3 Al alloy components.
- Authors
Castillo-Morales, M.; Berber-Solano, T. P.; Salas-Zamarripa, A.; Zapata-Hernández, O. J.; Hernández-Sandoval, J.; Ledezma-Ramírez, D. F.; Castillo-Elizondo, J. A.; Aldaco-Castañeda, J. A.
- Abstract
Previous research has investigated the possibility of improving the retardation of the fatigue crack growth (FCG) by means of different treatments and techniques. Ultrasonic impact treatment (UIT) emerges as an alternative technique to improve the resistance of metallic components, mainly developed in materials after welding. Experiments on 2024-T3 aluminium alloys are described to determine the effect of the UIT in the fatigue crack growth. Two working conditions were studied varying three parameters of the UIT process, which were amplitude under load, impact frequency and feed rate, while the operating frequency of the ultrasonic generator was set to 36 kHz. The standard M(T) geometry specimen was chosen to be employed in fatigue testing to determine the crack length, crack growth rate and the crack front shape by means of an optical technique. Results suggested that the manipulated UIT parameters allow the crack growth retardation to the 2024-T3 Al alloys. Findings also suggested that the less severe treatment, the more crack growth retardation. Treatment duration and amount of impacts during treatment are two key parameters to optimize in order to find better improvements in this direction.
- Subjects
FATIGUE crack growth; ALUMINUM alloys; MATERIAL fatigue; FRACTURE mechanics; DWARFISM
- Publication
International Journal of Advanced Manufacturing Technology, 2020, Vol 108, Issue 1/2, p157
- ISSN
0268-3768
- Publication type
Article
- DOI
10.1007/s00170-020-05064-9