Effect of grain size on fatigue-crack growth in 2524 aluminium alloy
Source abstract
Abstract
Abstract In this study, industrial 2524 aluminium alloy plates with various grain sizes (0.8–298 μm) were prepared by cold rolling and heat treatment. The fatigue-crack-growth rate was studied as a function of grain size through fatigue tests and microstructural observations. The results showed that grain refinement led to a decrease in the resistance against fatigue-crack growth. Besides, the levels of crack closure in coarse-grained samples were higher than those in fine-grained ones at low values of the range of the stress intensity factor K , Δ K . This phenomenon was predicted and explained well by the crack-deflection model.
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Research context
OpenAlex topics: Microstructure and mechanical properties · Metal Forming Simulation Techniques · Aluminum Alloys Composites Properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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