| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1572730 | Materials Characterization | 2007 | 5 Pages |
Abstract
The paper reports results of the study of specimens geometry influence on the Portevin-Le Chatelier (PLC) effect in Al-4.5Â Mg-0.4Â Mn (5182) alloy. Tensile tests were carried out in air at a room temperature using samples cut out of the same piece of material, which systematically differed in the ratio of section perimeter to cross-section area. Serrations on the stress-strain curves during tensile tests have been analyzed quantitatively using methods of signal analysis. The results show that PLC effects depend on the geometry of specimen cross-sections. A suggestion is put forward that this is related to propagation effects of elastic-plastic disturbance accompanying the PLC effect.
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Physical Sciences and Engineering
Materials Science
Materials Science (General)
Authors
J. Zdunek, W.L. Spychalski, J. Mizera, K.J. KurzydÅowski,