Identification of SAGBO-induced damage zone ahead of crack tip to characterize sustained loading crack growth in alloy 783
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Sustained loading was applied to alloy 783 subjected to a non-standard heat treatment, annealing plus γ′ aging, at elevated temperature. The existence of damage zone ahead of the crack tip was identified and propagation rate of the damage zone was correlated to the sustained loading crack growth rate. The formation of damage zone was ascribed to stress accelerated grain boundary oxidation.
Alloy 783; Alloys – Effect of high temperatures on; Grain boundaries; Metals — Fracture; Oxidation; Strains and stresses
Materials Science and Engineering | Mechanical Engineering | Metallurgy
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Longzhou Ma, Keh-Minn Chang, Identification of SAGBO-induced damage zone ahead of crack tip to characterize sustained loading crack growth in alloy 783, Scripta Materialia, Volume 48, Issue 9, May 2003, Pages 1271-1276, ISSN 1359-6462, 10.1016/S1359-6462(03)00049-6. (http://www.sciencedirect.com/science/article/pii/S1359646203000496)
Identification of SAGBO-induced damage zone ahead of crack tip to characterize sustained loading crack growth in alloy 783.
Scripta Materialia, 48(9),
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