Philosophical magazine. A/Philosophical magazine. A. Physics of condensed matter. Structure, defects and mechanical properties · 1981 · 97 citations · 21 references
Natural SciencesMaterials EngineeringMaterials ScienceMechanical Behavior Of MaterialsMetallic MaterialsMetallurgyAcoustic MaterialsAcoustic MeasurementAlloysGrain GrowthGrain Structure AnalysisMetalsAcoustic Characterization Of MaterialsAcoustic EmissionAcoustic Emission MeasurementAcoustic Material CharacterizationAluminium AlloysGrain Size ModelingGrain Structure Effects
Abstract The acoustic emission power during deformation of pure aluminium single crystals and polycrystals, and specimens of A1 1·3wt% Mg, has been measured. In pure aluminium the acoustic emission activity increased with grain size to approach the levels of activity from single crystals, whereas the emission activity of the Al 1·3wt% Mg solid solution exhibited a peak at a grain size of ∼80 μm, and samples with large grain size generated almost no detectable emission. A model is presented for acoustic emission by a dislocation, and is used to explain the observed emission dependence upon grain size in both metals.
21
The plasticity of pure single crystals
F. R. N. Nabarro, Z. S. Basinski, D. B. Holt · Advances In Physics · 1964 · 642 citations
Natural Sciences, Materials Engineering, Materials Science +17