飛行時間法による炭化ケイ素粒子強化アルミニウム合金複合材料の中性子応力測定

書誌事項

タイトル別名
  • Stress Measurement of Silicon Carbide Particulate Reinforced Aluminum Alloy by Time-of-Flight Neutron Diffraction
  • ヒコウ ジカンホウ ニ ヨル タンカ ケイソ リュウシ キョウカ アルミニウム ゴウキン フクゴウ ザイリョウ ノ チュウセイシ オウリョク ソクテイ

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説明

The loading stresses in a monolithic aluminum alloy and an aluminum alloy reinforced with silicon carbide particles were measured by time-of-flight neutron diffraction method. Under uniaxial loading, the longitudinal and transverse strains were measured by high resolution powder diffractometer, Sirius, at KENS. The elastic constants measured by the neutron diffraction method were compared with the values predicted by analytical models. The intensity of Al200 diffraction was high enough to determine the lattice strain in both longitudinal and transverse directions. The elastic constants agreed well with the predicted values. For the composite, the loading stresses in each constituent phase of the aluminum alloy and the silicon carbide particles were measured. Diffractions from SiC102, SiC110 and Al200 were suitable for determination of lattice strains. The measured strains were compared with the values predicted by the inclusion models. When the diffraction intensity is sufficiently high, the measured elastic constants are close to the predicted values. The macro stress calculated by the rule of mixture agreed very well with applied stress.

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  • 材料

    材料 54 (7), 692-697, 2005

    公益社団法人 日本材料学会

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