Y<SUB>2</SUB>O<SUB>3</SUB>を分散させたフェライト鋼の高温における分散強化機構

書誌事項

タイトル別名
  • Dispersion Hardening Mechanism of Y<SUB>2</SUB>O<SUB>3</SUB> Dispersed Ferritic Steel at High Temperature
  • Y2O3を分散させたフェライト鋼の高温における分散強化機構
  • Y2O3 オ ブンサンサセタ フェライト コウ ノ コウオン ニ オケル ブン

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説明

The threshold stress for high temperature deformation of Oxide Dispersion Strengthened (ODS) Ferritic Steel was measured by stress abruptly loading (SAL) test at 923K and was compared with the Orowan and void-hardening stresses calculated from dispersion parameters. It was found that the threshold stress obtained by SAL test decreased from the Orowan stress to the void-hardening stress as the time elapsed under load. Therefore, it is concluded that the originating mechanism of the threshold stress comes from the Srolovitz mechanism in this steel. From these results, the origin of strength anisotropy of ODS Ferritic Steel are discussed.

収録刊行物

  • 鉄と鋼

    鉄と鋼 82 (10), 865-869, 1996

    一般社団法人 日本鉄鋼協会

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