Role of different material processing methods on the fatigue behavior of an AZ31 magnesium alloy

M. Lugo, J. B. Jordon, Kiran Solanki, L. G. Hector, J. D. Bernard, A. A. Luo, M. F. Horstemeyer

Research output: Contribution to journalArticle

25 Scopus citations

Abstract

The influence of extrusion, plate rolling, and sheet rolling on the fatigue life of an AZ31 magnesium alloy is investigated with a microstructure-sensitive fatigue model that comprises both crack incubation and growth stages. The model describes the effect of primary processing on the microstructure by incorporating specific mechanical properties and microstructural attributes such as grain and inclusion sizes. As such, the fatigue model successfully captured the experimentally observed differences in fatigue lifetimes of the Mg alloy due to the induced in-plane constraint effects resulting from different material processing methods. Quantitative prediction of cumulative damage due to cyclic loading and its comparison with experimental data is described in detail.

Original languageEnglish (US)
Pages (from-to)131-143
Number of pages13
JournalInternational Journal of Fatigue
Volume52
DOIs
StatePublished - Jul 1 2013

Keywords

  • Fatigue
  • Magnesium alloys
  • Manufacturing process
  • Microstructure

ASJC Scopus subject areas

  • Modeling and Simulation
  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering
  • Industrial and Manufacturing Engineering

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