High temperature deformation of a twin-roll cast AlMg3 alloy

Autor:	P. Málek, Kryštof Turba, I. Drbohlav, M. Slámová
Rok vydání:	2008
Předmět:	Materials science Mechanical Engineering Metallurgy Alloy Superplasticity Slip (materials science) engineering.material Strain rate Condensed Matter Physics Continuous casting Mechanics of Materials Microscopy engineering General Materials Science Deformation (engineering) Grain Boundary Sliding
Zdroj:	Materials Characterization. 59:1046-1050
ISSN:	1044-5803
DOI:	10.1016/j.matchar.2007.08.019
Popis:	The high temperature plastic deformation of twin-roll cast AlMg3 (AA5754) sheets was investigated. The maximum value of the strain rate sensitivity parameter m = 0.4 suggests superplastic behaviour. However, the maximum ductility of 135% remains below the bottom limit of superplasticity. The investigation of the surface of strained samples using light microscopy and AFM revealed grain boundary sliding at conditions corresponding to the maximum m and dislocation slip in the grain interiors at conditions corresponding to low values of m .
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::375774a5272a35e419d1d7ad37b86088 https://doi.org/10.1016/j.matchar.2007.08.019 Zobrazit plný text záznamu Full Text from ScienceDirect