%0 Journal Article %T The Effect of Various Parameters on Out-of-phase Thermo-mechanical Fatigue Lifetime of A356.0 Cast Aluminum Alloy %J International Journal of Engineering %I Materials and Energy Research Center %Z 1025-2495 %A Eichlseder, W %A Winter, G %A Farrahi, G. H. %A Azadi, M. %D 2013 %\ 12/01/2013 %V 26 %N 12 %P 1461-1470 %! The Effect of Various Parameters on Out-of-phase Thermo-mechanical Fatigue Lifetime of A356.0 Cast Aluminum Alloy %K thermo %K mechanical fatigue %K A356.0 aluminum alloy %K dwell time %K maximum temperature %K cyclic softening %R %X In this paper, the effect of various parameters on out-of-phase thermo-mechanical fatigue (OP-TMF) lifetime of A356.0 cast aluminum alloy is investigated. The studied parameters include maximum temperature, dwell time, and the thermo-mechanical loading factor. OP-TMF tests are conducted considering realistic running conditions of diesel engine cylinder heads. The maximum temperature varies between 200 to 275°C and the thermo-mechanical loading factor, which is the ratio of mechanical strain to thermal strain, is considered between 75 to 150%. The dwell time (or holding time) changes between 5 to 180 sec. at maximum temperature. The fracture surfaces of specimens are studied using Scanning electron microscope (SEM). These SEM images reveal that A356.0 alloy has a ductile behavior. The cyclic softening phenomenon is also observed during stress-strain hysteresis loops. The TMF tests results demonstrate that the dwell time bears no significant effect upon the lifetime. However, large influences for maximum temperature and the thermo-mechanical loading factor are depicted in the lifetime of A356.0 alloy. %U https://www.ije.ir/article_72216_6e0e2ddb2d30aa46a2cd848a7716b688.pdf