Characterizing Microstructural and Mechanical Properties of Al-Zn Alloys processed by High-Pressure Torsion

Nguyen Q. Chinh, Péter Szommer, Jenő Gubicza, Moustafa El-Tahawy, Elena V. Bobruk, Maxim Yu. Murashkin, Ruslan Z. Valiev

Результат исследований: Научные публикации в периодических изданияхОбзорная статья

Аннотация

Herein, the characterization of microstructures and mechanical properties of Al–Zn alloys ultrafine‐grained (UFG) by using high pressure torsion (HPT) is surveyed. Emphasis is placed on the decomposition of the solid solution structures due to the HPT process, leading to unique mechanical and plastic properties of the UFG alloys. The decomposed microstructures, the grain boundaries wetted by Zn‐rich layers, as well as the softening, grain boundary sliding (GBS) with usually high strain rate sensitivity and super‐ductility of the HPT‐processed samples are described and discussed. Furthermore, the innovation potential of intensive GBS at room temperature is briefly considered.
Язык оригиналаанглийский
Номер статьи1900672
Число страниц11
ЖурналAdvanced Engineering Materials
Том22
Номер выпуска1
Ранняя дата в режиме онлайн23 июл 2019
СостояниеОпубликовано - 2020

Ключевые слова

  • Al–Zn alloys, grain boundary sliding, high-pressure torsion, phase decomposition, ultrafine grains

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