[Kovove materialy - Metallic materials]
    Thu - June 20, 2024 - 17:08 No. of hits : 1758889 ISSN 1338-4252 (online) ISSN 0023-432X (printed)
© Institute of Materials and Machine Mechanics, Slovak Academy of Sciences, Bratislava, Slovak Republic

VOLUME 49 (2011), Issue 5

Constant structure creep experiments on aluminium
vol. 49 (2011), no. 5, pp. 307 - 318
DOI: 10.4149/km_2011_5_307

Creep behaviour of pure aluminium was investigated using constant structure creep experiments performed in the steady-state creep stage over a wide temperature interval from 523 to 773 K. The simultaneous activity of two parallel operating dislocation mechanisms was deduced from an analysis of the experiments. Both mechanisms are probably governed by diffusion along dislocation cores; however, they differ substantially in their activation areas. The contributions of the mechanisms to the steady-state creep rate depend on the applied stress and temperature. The nature of both mechanisms is extensively discussed.

Key words
mechanical properties, high temperature deformation, creep, aluminium

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Full title of this journal is bilingual: Kovové materiály - Metallic Materials.
The official abbreviation in accordance with JCR ISI is Kovove Mater.

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