Flow Stress Behavior and Microstructural Evolution of DC Cast 7065 Aluminum Alloy During Hot Compression Deformation

Autor:	Kechao Zhou, Xinming Zhang, Xu Zheng, Tan Zimeng, Biao Chen, Ke-zhun He
Rok vydání:	2021
Předmět:	History Materials science Alloy Strain rate Atmospheric temperature range Flow stress Deformation (meteorology) engineering.material Microstructure Computer Science Applications Education Stress (mechanics) engineering Compression (geology) Composite material
Zdroj:	Journal of Physics: Conference Series. 1885:032067
ISSN:	1742-6596 1742-6588
Popis:	The deformation behavior and microstructure evolution of DC cast 7065 aluminum alloy was investigated in the temperature range of 340-460 ℃ and strain rate range of 0.1-8 s-1. The flow stresses of the 7065 alloy are forceful function of deformation strain rate and temperature. The peak stress raises with reducing compression temperature, and at a designated deformation temperature, the peak stress increases with the increasing of strain rate. The hot deformation equation of the alloy is generated, and the deformation activation energy of the alloy is 117.869 kJ/mol. When the samples were deformed above 380℃, the α-aluminum dendrite in the initial microstructure was replaced by recrystallized grains, dynamic recrystallisation occurred during compression.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::4659563c49ec47c3af78bce2d2a15cc4 https://doi.org/10.1088/1742-6596/1885/3/032067 Zobrazit plný text záznamu