薄鋼板の強度におよぼす歪速度の影響

書誌事項

タイトル別名
  • Effect of Strain Rates on Strength of Sheet Steels
  • ウスコウハン ノ キョウド ニ オヨボス ヒズミ ソクド ノ エイキョウ

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抄録

Stain rate sensitivity of deformation behavior in various sheet steels were investigated in order to find out the suitable steel for automotive anti-crash parts. Dual phase steels consisted of ferrite and martensite phases absorbed higher energy at strain rate of 2 × 103/s with lower yield strength at strain rate of 2 × 10-2/s, compared with other steels. Higher energy absorption of dual phase steels was due to high strain rate sensitivity of yield strength and n-value. Increase of volume fraction or large surface area of martensite phase in dual phase steel led higher strain rate sensitivity in work hardenability as well as yield strength.

収録刊行物

  • 鉄と鋼

    鉄と鋼 83 (11), 748-753, 1997

    一般社団法人 日本鉄鋼協会

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