K-0415 多結晶金属の塑性変形に伴う微視的変形挙動の観察(G03-4 静的強度)(G03 材料力学部門一般講演)

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  • K-0415 Observation of Microscopic Surface Change of Polycrystalline Metal During Plastic Deformation

抄録

The surface roughening is closely related to the inhomogeneity of polycrystalline metals, that is, to the inhomogeneous plastic deformation of respective grains. In the present study, inhomogeneous deformation on the free surface of polycrystalline aluminum during uniaxial tension is studied. The inhomogeneous deformation of grains, which is represented by the area of the grain and the grain boundary length in the free surface, is observed by means of the laser-scanning microscope as a nondestructive method. Discussions are made mainly on the evaluation of inhomogeneous deformation of respective grains in polycrystalline aggregate.

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