Ｘ線格子ひずみに及ぼす２次元切削加工層集合組織の影響

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タイトル別名
  • Influence of Texture in Orthogonally-Planed Surface Layer on X-Ray Lattice Strains
  • Xセン コウシ ヒズミ ニ オヨボス 2ジゲン セッサク カコウソウ シュウゴ

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This paper describes the effect of machining textures on lattice strain ε'33 vs. sin2ψ relation. A general relation between X-ray lattice strain and applied stress was formalized for an anisotropic single crystal. The calculations under the Reuß model assumption revealed that the ε'33 vs. sin2ψ relation for a textured material had a systematic deviation from a linear or an elliptic distribution, which is, respectively, a typical feature in the uniaxial or the shear stress state of an isotropic and homogeneous material. The non-symmetric machining textures were found to disturb the strain distribution and also cause ψ-splitting even if the stress state was uniaxial.<br>The experimental measurements showed that an orthogonally planed pure iron had an extreme texture which could be approximately given by rotation of the cold-rolling texture about its transverse axis. The results of the measurements for 200 diffraction showed no residual shear stress and those for 211 diffraction showed ψ-splitting due only to the machining texture. The distribution of lattice spacing measured for 211 diffraction in the sin2ψ diagram coincided qualitatively with the values calculated under the Reuß model assumption for each pole of the ideal machining textures.

収録刊行物

  • 材料

    材料 33 (367), 372-377, 1984

    公益社団法人 日本材料学会

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