首页|Low-temperature superplastic behavior of nanostructured Al-Zn-Mg-Cu alloy

Low-temperature superplastic behavior of nanostructured Al-Zn-Mg-Cu alloy

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  • NETL
  • NSTL
  • Elsevier
© 2024The evolution of Al-Zn-Mg-Cu alloy microstructure during high pressure torsion at room temperature and subsequent low-temperature superplastic deformation is studied. The formation of a nanostructured state in Al-Zn-Mg-Cu alloy made it possible to implement a superplasticity (SP) effect at 170 °C and a strain rate of 5 × 10−4 s−1. The deformation relief of the gauge part of an Al-Zn-Mg-Cu alloy sample at the stage of steady-state SP flow is analyzed. Low-temperature superplastic deformation is stated to take place due to grain boundary sliding. High formability of nanostructured alloy under biaxial tension at a temperature of 170 °C is recorded.

Al-Zn-Mg-Cu alloyGrain boundariesPhase transformationSuperplasticityUltrafine-grained structure

Bobruk E.V.、Ramazanov I.A.、Ganeev A.V.、Yu. Murashkin M.、Orlov A.P.、Mikhaylovskaya A.V.

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Ufa University of Science and Technology

Kotelnikov Institute of Radioengineering and Electronics of RAS

National University of Science and Technology MISIS

2024

10.1016/j.matlet.2024.137497

Materials letters

Materials letters

SCI
ISSN：0167-577X
年,卷(期)：2024.377(Dec.15)
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