Open AccessEffect of Heat Treatment on Strain Life of Aluminum Alloy AA 6061
Author(s) -
Adnan N. Abood,
Ali Hassan Saleh,
Zainab Waheed Abdullah
Publication year - 2013
Publication title -
journal of materials science research
Language(s) - English
Resource type - Journals
eISSN - 1927-0593
pISSN - 1927-0585
DOI - 10.5539/jmsr.v2n2p51
Subject(s) - materials science , alloy , ductility (earth science) , aluminium , annealing (glass) , low cycle fatigue , metallurgy , ultimate tensile strength , composite material , exponent , creep , linguistics , philosophy
The present work encompasses the investigation of Low Cycle Fatigue (LCF) of aluminum alloy AA6061 in three conditions, annealing (O), T4 and T651. AA6061-O has the higher value of transition fatigue life (NT) because it has the highest ductility, while the fatigue strength exponent and fatigue ductility exponent are within the range of metallic materials. The SEM morphology for specimens at strain closer to true tensile stress show multi-crack origins with secondary cracks and large final fracture zone. The striations are very clear for O-condition.