Fatigue of Al-Li alloys: mechanical properties, microstructure (TEM and SEM) and strain localization

Y. Bréchet, F. Louchet, T. Magnin

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Abstract

The fatigue behaviour of two binary AI-Li alloys (A, solid solution; B, containing δ′ precipitates) is studied by macroscopic fatigue tests, and microscopic (SEM and STEM) observations. Two types of strain localization are found, appearing as two types of slip band in SEM, and as two types of substructure in TEM. These characteristics are ascribed to strain localization processes governed by strain amplitude for the former and strain rate for the latter.

Original languageEnglish
Pages (from-to)3053-3060
Number of pages8
JournalJournal of Materials Science
Volume25
Issue number7
DOIs
Publication statusPublished - 1990
Externally publishedYes

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