Fe-Cr鋼/TiN系焼結複合材料の変形挙動および弾性定数に及ぼす気孔の影響 : (Eshelby/Taya-Chouモデルによる考察)

概要

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A study on the deformation behavior and elastic constants for sintered high chromium steel with uniformly dispersed titanium nitride particles was carried out. The influence of the porosity and the second phase on overall Young's modulus, the phase stress and the X-ray elastic constants was investigated. The experimental results were compared to the theoretical model developed by Taya and Chou. As a result, the following conclusions were obtained ; The increase of the second phase decreases the phase stress and the X-ray elastic constants of each phases. The increase of the porosity increases the phase stress and the X-ray elastic constants. The theoretical model proposed by Taya and Chou agreed to the experimental results in case of the volume fraction of TiN less than about 14%. The limits where the theory and the experiment agree each other were different between diffraction lines such as 211 and 310 diffractions, as well as between overall Young's modulus and the X-ray data such as the phase stress and the X-ray elastic constants.
社団法人日本機械学会の論文
1998-04-26