Low-temperature volume radiation annealing of cold-worked bands of Al-Li-Cu-Mg alloy by 20-40 keV Ar+ ion

7th International Conference Radiation-thermal Effects and Processes in Inorganic Materials

材料科学;物理学

Ovchinnikov, V.V.^1,2 ; Gushchina, N.V.^1 ; Mozharovsky, S.M.^1 ; Kaigorodova, L.I.^3

Institute of Electrophysics, Ural Branch, Russian Academy of Sciences, Amundsena Street 106, Yekaterinburg

620016, Russia^1

Ural Federal Technical University Named after the First President of Russia B.E. Yeltsin, Mira Street 19, Yekaterinburg

620002, Russia^2

Institute of Metal Physics, Ural Branch, Russian Academy of Sciences, St. S. Kovalevskoy 18, Yekaterinburg

620990, Russia^3

关键词: Al-Li-Cu-Mg alloy;    Low temperatures;    Projected range;    Radiation dynamics;    Structure change;    Thermal annealing process;    Thermal-annealing;    Thermally activated process;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/168/1/012067/pdf
DOI  :  10.1088/1757-899X/168/1/012067

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

The processes of radiation-dynamic nature (in contrast to the thermally-activated processes) in the course of short-term irradiation of 1 mm thick bands of cold-worked aluminum alloy 1441 (of system Al-Li-Cu-Mg) with Ar+20-40 keV were studied. An effect of in-the-bulk (throughout the whole of metal bands thickness) low-temperature radiation annealing of the named alloy, multiply accelerated as compared with common thermal annealing processes was registered (with projected ranges of ions of considered energies definitely not exceeding 0.1 μm). The processes of recrystallization and intermetallic structure changes (occurring within a few seconds of Ar+irradiation) have the common features as well as the differences in comparison with the results of two hour standard thermal annealing.