[Kovove materialy - Metallic materials]
    Tue - October 15, 2019 - 01:58 No. of hits : 1051003 ISSN 1338-4252 (online) ISSN 0023-432X (printed)
© Institute of Materials and Machine Mechanics, Slovak Academy of Sciences, Bratislava, Slovak Republic

VOLUME 40 (2002), Issue 5

Application of a model for the work hardening behaviour to an AM20 alloy
LUKAC, P., MATHIS, K.
vol. 40 (2002), no. 5, pp. 281 - 289

Abstract
A new model describing the dislocation density evolution in alloys with hexagonal structure is proposed. Forest dislocations and non-dislocation obstacles are considered as obstacles for primary dislocations. Annihilation of dislocations due to recovery processes is assumed. The stress dependence of the work hardening rate is derived. Experimental results obtained for magnesium alloy AM20 (Mg-2wt.%Al-0.1wt.%Mn) deformed at various temperatures are analysed. The proposed model describes satisfactorily the shape of the stress dependence of the work hardening rate.

Key words
Mg alloy, work hardening behaviour, dislocation density evolution

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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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