S. Bentachfine et al., SPECIFIC ASPECTS OF BIAXIAL LOW-CYCLE FATIGUE ON AN HEXAGONAL, STRUCTURE MATERIAL - A MAGNESIUM-LITHIUM ALLOY, Annales de chimie, 19(7-8), 1994, pp. 355-362
The aim of this work is to study the specific aspects of the biaxial l
ow cycle fatigue on a magnesium-lithium alloy which has a compact hexa
gonal structure.This kind of structure implies that the strain mechani
sms are mainly slipping, on basal and prismatic plane and twinning. Lo
w cycle fatigue tests have been performed with different loading condi
tions (tension-compression, torsion and tension-torsion in phase and o
ut-of-phase). Macroscopic and microscopic behaviour of the cyclic plas
tic deformation is described.