An exponential material model for prediction of the flow curves of several AZ series magnesium alloys in tension and compression

F. Fereshteh-Saniee, F. Barati, H. Badnava, Khosro Fallahnezhad

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

This paper is concerned with flow behaviors of several magnesium alloys, such as AZ31, AZ80 and AZ81, in tension and compression. The experiments were performed at elevated temperatures and for various strain rates. In order to eliminate the effect of inhomogeneous deformation in tensile and compression tests, the Bridgeman's and numerical correction factors were respectively employed. A two-section exponential mathematical model was also utilized for prediction of flow stresses of different magnesium alloys in tension and compression. Moreover, based on the compressive flow model proposed, the peak stress and the relevant true strain could be estimated. The true stress and strain of the necking point can also be predicted using the corresponding relations. It was found that the flow behaviors estimated by the exponential flow model were encouragingly in very good agreement with experimental findings.

Original languageEnglish
Pages (from-to)1-11
Number of pages11
JournalMaterials and Design
Volume35
DOIs
Publication statusPublished - Mar 2012
Externally publishedYes

Keywords

  • A. Non-ferrous metals and alloys
  • C. Forming
  • E. Mechanical

Fingerprint Dive into the research topics of 'An exponential material model for prediction of the flow curves of several AZ series magnesium alloys in tension and compression'. Together they form a unique fingerprint.

  • Cite this