Effect of Barothermal Treatment on the Structure and the Mechanical Properties of a High-Strength Eutectic Al–Zn–Mg–Cu–Ni Aluminum Alloy
- Авторы: Akopyan T.1,2, Padalko A.1, Belov N.2, Karpova Z.2
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Учреждения:
- Baikov Institute of Metallurgy and Materials Science
- National University of Science and Technology MISiS
- Выпуск: Том 2017, № 11 (2017)
- Страницы: 922-927
- Раздел: Article
- URL: https://journals.rcsi.science/0036-0295/article/view/171814
- DOI: https://doi.org/10.1134/S0036029517110027
- ID: 171814
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Аннотация
The effect of barothermal treatment by hot isostatic pressing (HIP) on the structure and the properties of castings of a promising high-strength cast aluminum alloy, namely, nikalin ATs6N4 based on the Al‒Zn–Mg–Cu–Ni system, has been studied using two barothermal treatment regimes different in isothermal holding temperature. It is shown that the casting porosity substantially decreases after barothermal treatment; eutectic phase Al3Ni particles are additionally refined during exposure to the barothermal treatment temperature: the higher the HIP temperature, the more substantial the refinement. The improvement of the casting structure after HIP increases their mechanical properties. It is found, in particular, that the plasticity of the alloy in the state of the maximum hardening increases by a factor of more than 8 as compared to the initial state (from 0.82 to 6.9%).
Об авторах
T. Akopyan
Baikov Institute of Metallurgy and Materials Science; National University of Science and Technology MISiS
Автор, ответственный за переписку.
Email: aktorgom@gmail.com
Россия, Leninskii pr. 49, Moscow, 119334; Leninskii pr. 4, Moscow, 119049
A. Padalko
Baikov Institute of Metallurgy and Materials Science
Email: aktorgom@gmail.com
Россия, Leninskii pr. 49, Moscow, 119334
N. Belov
National University of Science and Technology MISiS
Email: aktorgom@gmail.com
Россия, Leninskii pr. 4, Moscow, 119049
Zh. Karpova
National University of Science and Technology MISiS
Email: aktorgom@gmail.com
Россия, Leninskii pr. 4, Moscow, 119049
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