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Synergistic effect of environmental media and stress on the fatigue fracture behaviour of aluminium alloys
Author(s) -
Yang HH,
Wang YL,
Wang XS,
Pan P,
Jia DW
Publication year - 2016
Publication title -
fatigue and fracture of engineering materials and structures
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.887
H-Index - 84
eISSN - 1460-2695
pISSN - 8756-758X
DOI - 10.1111/ffe.12457
Subject(s) - aluminium , materials science , metallurgy , cyclic stress , fracture (geology) , stress (linguistics) , aqueous medium , bending , fracture mechanics , corrosion fatigue , composite material , corrosion , aqueous solution , chemistry , linguistics , philosophy
The present study aims at explaining the synergistic effect of environmental media and stress/strain on fatigue lives of aluminium alloys. Rotating bending fatigue tests were carried out using four different aluminium alloys LY12‐CZ, 2024‐T4, 7475‐T7351 and 7075‐T651, at air state, 3.5% and 5.0% NaCl aqueous solutions. These results indicated that synergistic actions of the environmental media and cyclic loading accelerated the fatigue crack propagation of aluminium alloys. Furthermore, various influence factors (such as solution concentration, cyclic numbers, high (low) strength aluminium alloys etc.) of the fatigue life at synergistic actions of the environmental media and stress were quantificationally discussed in this paper.