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Role of Predeformation in the Modification of Crack Tip Oxidation Resistance
Volume 3C: General
The effects of predeformation on the high temperature, low frequency crack growth rate of wrought Alloy 718 is investigated. A series of crack growth experiments were carried out on specimens with different levels of deformation, in addition to specimens in the as received conditions. The experiments included continuous measurements of the crack length and its near field crack tip displacements, fractographic analysis of fracture surface facets and qualitative estimation of the slip density indoi:10.1115/93-gt-365 fatcat:4xoi5ore6nevtmctoeiiqll6lq