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Measurement of Microdeformation for Aluminum Specimen with Large Grain
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Laser-based optical measurement was used to analyze the non-uniform microdeformation of aluminum specimens with large grains, revealing high shear strains at grain boundaries during slip. The experimental results provide direct evidence supporting theories of microplastic deformation at grain boundaries in coarse-grained metals.
In this paper is given the experimental analysis of aluminum specimen with large grains in measuring using light. During the landslipping of grain boundary,the experiments show,there is a very high sheering strain of the grain boundary. The microdeformation of intergrain is not uniform. The results provide experimental basis for study of microplastic theories
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