Abstract: We report physical modeling of the forming process for a panel from AK4-1 (Al–Cu–Mg) alloy under creep conditions at an annealing temperature of 420°C. The forming process was imitated by creep tension of circular cylindrical specimens to various strain levels no higher than 6%. Creep test results were used to determine parameters of the Boyle–Norton classic model for steady-state creep. In accordance with the forming process under creep conditions, the specimens were heat-treated (quenching and aging) in order to restore the strength properties of the panel. The stress for fatigue tests was determined using stepwise cyclic loading with increasing stress amplitude. The tests were stopped when plastic deformation was observed. We compared fatigue failure resistance characteristics of as-received specimens, specimens stretched upon creep and after heat treatment, and specimens with zero creep strain after heat treatment. Our results demonstrate that accumulated creep strain above 2% can lead to a decrease in the fatigue characteristics of the specimens in comparison with those of the as-received specimens.

Cite: Larichkin A.Y. , Zakharchenko K.V. , Kapustin V.I.
Effect of Creep and Subsequent Heat Treatment on the Fatigue Resistance of AK4-1 (Al–Cu–Mg) Alloy
Journal of Applied Mechanics and Technical Physics. 2025. V.66. N4. P.181-187. DOI: 10.1134/S0021894425700348 WOS Scopus OpenAlex

Original: Ларичкин А.Ю. , Захарченко К.В. , Капустин В.И.
ВЛИЯНИЕ ПОЛЗУЧЕСТИ И ПОСЛЕДУЮЩЕЙ ТЕРМООБРАБОТКИ ОБРАЗЦОВ ИЗ СПЛАВА АК4-1 (AL-CU-MG) НА СОПРОТИВЛЕНИЕ УСТАЛОСТИ
Прикладная механика и техническая физика. 2025. Т.392. №4. С.181-187. DOI: 10.15372/PMTF202415546 РИНЦ OpenAlex

Dates:

Submitted:	Jun 7, 2024
Accepted:	Sep 30, 2024

Identifiers:

Web of science:	WOS:001663661000008
Scopus:	2-s2.0-105027735391
OpenAlex:	W7124419462

Citing:

DB	Citing
Scopus	Нет цитирований
OpenAlex	Нет цитирований

Altmetrics: