Thermal stability of microstructure in the AK4-1 and AK12D aluminum alloys after their joint friction stir processing

This work is aimed at evaluating the possibility of increasing the thermal stability of microstructure of AK4-1 (Al-Cu-Mg-Fe-Si-Ni) aluminum alloy with a matrix type structure. To achieve this goal, AK12D (Al-Si-Cu-Ni-Mg) aluminum alloy with a structure similar to the microduplex one was locally mixed into the investigated alloy via friction stir processing. The subsequent T6 heat treatment was carried out according to the standard regime for the AK4-1 alloy. Studies have shown that the stir zone had an elliptical shape with an onion-ring structure. This structure represented alternating rings with different amount and size of excess phase particles. At the same time, the ring width and average area of excess phase particles were larger in the center of the stir zone compared to the periphery where the ring width and average particle cross section area were smaller. The average particle cross section area in the rings with a higher content of excess phases was smaller than in the rings where their amount was lower. This distribution of excess phases leads to the formation of a fine-grained microstructure, the average size of which depends on the interparticle distance in the α-Al solid solution.

Высокотемпературная термическая обработка газотермических покрытий из псевдосплава «Fe-Al»

А.Н. Григорчик, Е.В. Астрашаб, В.А. Кукареко, М.А. Белоцерковский, А.В. Сосновский

Плазменно-электролитическая обработка биметаллов в анодном процессе

Д.Е. Капуткин, В.Н. Дураджи, Н.А. Капуткина

Growth of Al3Ni particles during friction stir processing of the AA6063+NiO composite

I.S. Sugonyako, D.B. Kabirova, N.F. Khayretdinov, R.F. Fazlyakhmetov, M.F. Imayev

The effect of oxygen-free MgF2 matrix on the physical properties of (CoFeZr)х(MgF2)100−х nanocomposites

O.V. Stognei, T.V. Tregubova, I.M. Tregubov

Effect of cryogenic rolling on structure and mechanical properties of ultrafine grained 1570C alloy

E.V. Avtokratova, O.S. Sitdikov, R.R. Zagitov, V.V. Tereshkin, S.V. Krymskiy, O.E. Latypova, M.V. Markushev

Effect of initial state on structuring, hardening and rollability of high-strength aluminum alloy 1965 in isothermal cryorolling

M.V. Markushev, M.A. Akhmetshin, V.V. Tereshkin, S.V. Krymskiy, E.V. Avtokratova, O.S. Sitdikov

Влияние продолжительности термической обработки на структуру и фазовый состав образцов сплава Co-Cr-Mo, полученных с помощью аддитивных технологий

М.А. Химич , Е.А. Ибрагимов , А.И. Толмачев , В.В. Чебодаева , П.В. Уваркин , Н.А. Сапрыкина , А.А. Сапрыкин , Ю.П. Шаркеев

Моделирование изменения предела длительной прочности сплавов на основе никеля с использованием байесовских искусственных нейронных сетей

О.В. Аношина, А.С. Трубникова, О.Б. Мильдер, Д.А. Тарасов, А.А. Ганеев, А.Г. Тягунов

1. Russian Science Foundation - 22-29-01318