Mechanical Properties of High Strength Low Alloy Steel Controlled Rolled at Austenite and Ferrite Two Phase Regions

DOI Web Site Web Site 6 Citations 1 References

Bibliographic Information

Other Title
  • 低合金高張力鋼のオーステナイト・フェライト二相域圧延と機械的性質
  • 低合金高張力鋼のオーステナイト・フェライトニ相域圧延と機械的性質
  • テイゴウキン コウチョウリョク コウ ノ オーステナイト フェライト ニソウイ

Search this article

Abstract

Changes in strength and toughness in conjunction with controlled rolling in austenite and ferrite two phase region were investigated.<BR>The results are summarized as follows.<BR>(1) Strength increased with the lowering of rolling temperature and the raising of rolling reduction in two phase region. This strengthening will be attributed to dislocation hardening and minimizing the subgrain and cell size in warm worked ferrite grains.<BR>(2) Toughness is dependent on the rolling temperature at two phase region. Good toughness can be obtained by the rolling at temperatures where recovery and recrystallization of warm worked ferrite are recognized. But Charpy transition temperature is raised by rolling bellow these temperatures.<BR>(3) The prior hot rolling just above Ar3 temperature is effective to supress the rise of Charpy transition temperature, even though the final rolling is carried out at temperature where no recovery occurs in deformed ferrite grains.<BR>Because it promotes the separations which appear on fractured Charpy specimens. So in this case high strength and good toughness can be obtained.

Journal

  • Tetsu-to-Hagane

    Tetsu-to-Hagane 65 (9), 1425-1433, 1979

    The Iron and Steel Institute of Japan

Citations (6)*help

See more

References(1)*help

See more

Keywords

Details 詳細情報について

Report a problem

Back to top