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Constant structure creep experiments on aluminium
- 1.0369797 - ÚFM 2012 RIV SK eng J - Journal Article
Milička, Karel
Constant structure creep experiments on aluminium.
Kovové materiály. Roč. 49, č. 5 (2011), s. 307-318. ISSN 0023-432X. E-ISSN 1338-4252
R&D Projects: GA AV ČR IAA2041203
Institutional research plan: CEZ:AV0Z20410507
Keywords : mechanical properties * high temperature deformation * creep * aluminium
Subject RIV: BM - Solid Matter Physics ; Magnetism
Impact factor: 0.451, year: 2011
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.
Permanent Link: http://hdl.handle.net/11104/0006758
Number of the records: 1