Microscopic deformation behavior and X-ray elastic constants in polycrystalline metals. (Influence of grain shape)

Takaaki Sarai, Kazuo Honda

Research output: Contribution to journalArticle

Abstract

The influence of the grain shape on the microscopic deformation of polycrystalline metals was studied analytically by the finite element method in the uniaxial elastic deformation. In the present analysis, a plane model of polycrystals was used and the elastic constants of the polycrystals and the x-ray elastic constants were also calculated. The stress in individual grains became uniform when the grain was oblate in the direction of the applied stress, while the strain became uniform when it was prolate. The stress at the region across the grain boundary changed with the crystal orientation and the shape of the grains, and it was closely related to the deformation of the grain.

Original languageEnglish
Pages (from-to)489-493
Number of pages5
JournalNippon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A
Volume55
Issue number511
Publication statusPublished - Mar 1989

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Elastic constants
Metals
X rays
Polycrystals
Phosmet
Elastic deformation
Crystal orientation
Grain boundaries
Finite element method

ASJC Scopus subject areas

  • Mechanical Engineering

Cite this

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abstract = "The influence of the grain shape on the microscopic deformation of polycrystalline metals was studied analytically by the finite element method in the uniaxial elastic deformation. In the present analysis, a plane model of polycrystals was used and the elastic constants of the polycrystals and the x-ray elastic constants were also calculated. The stress in individual grains became uniform when the grain was oblate in the direction of the applied stress, while the strain became uniform when it was prolate. The stress at the region across the grain boundary changed with the crystal orientation and the shape of the grains, and it was closely related to the deformation of the grain.",
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AU - Honda, Kazuo

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N2 - The influence of the grain shape on the microscopic deformation of polycrystalline metals was studied analytically by the finite element method in the uniaxial elastic deformation. In the present analysis, a plane model of polycrystals was used and the elastic constants of the polycrystals and the x-ray elastic constants were also calculated. The stress in individual grains became uniform when the grain was oblate in the direction of the applied stress, while the strain became uniform when it was prolate. The stress at the region across the grain boundary changed with the crystal orientation and the shape of the grains, and it was closely related to the deformation of the grain.

AB - The influence of the grain shape on the microscopic deformation of polycrystalline metals was studied analytically by the finite element method in the uniaxial elastic deformation. In the present analysis, a plane model of polycrystals was used and the elastic constants of the polycrystals and the x-ray elastic constants were also calculated. The stress in individual grains became uniform when the grain was oblate in the direction of the applied stress, while the strain became uniform when it was prolate. The stress at the region across the grain boundary changed with the crystal orientation and the shape of the grains, and it was closely related to the deformation of the grain.

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