Influence of Testing Parameters on Stress Corrosion Crack Growth in the High211 Strength Aluminium Alloy 7010-T651

摘要

An interlaboratory testing program to evaluate the rising displacement test for211u001estress corrosion crack (SCC) growth investigations was carried out within the 211u001eframework of the 'Measurements and Testing' program of the European Community. 211u001eThe contribution of the NLR to the project consisted of testing of precracked 211u001eDouble Cantilever Beam (DCB) specimens made from the high strength aluminium 211u001ealloy 7010-T651 under constant displacement and by continuous immersion in 211u001esubstitute ocean water. The results of these static tests were to be used as 211u001ereference data for the dynamic rising displacement tests carried out by other 211u001eparticipants in the project. Further, additional static tests were carried out by 211u001ethe NLR using alternate immersion in substitute ocean water. The results of these 211u001etests were compared with those of 7010-T651 plate from another batch of material 211u001etested previously at the NLR.