低炭素鋼の高Z因子大歪加工における超微細粒組織の形成

DOI Web Site Web Site 被引用文献23件 参考文献60件

書誌事項

タイトル別名
  • Evolution of Ultrafine-grained Structure through Large Strain-High Z Deformation in a Low Carbon Steel
  • 相変態・材料組織 低炭素鋼の高Z因子大歪加工における超微細粒組織の形成
  • ソウヘンタイ ザイリョウ ソシキ テイタンソ コウ ノ コウZ インシ ダイワイ カコウ ニ オケル チョウビサイリュウ ソシキ ノ ケイセイ

この論文をさがす

抄録

Ultrafine-grained structure formed dynamically through severe plastic deformation at elevated temperatures has been investigated in a 0.1% C-0.4% Si-1.5% Mn steel. The effects of the strain, the strain rate and the deformation temperature on the microstructural evolution were examined using a compression technique with a pair of anvils. The maximum strain was 4, the deformation temperature was below the Ac1 temperature, and the Zener-Hollomon parameter (Z) ranged between 1012s-1 and 1016s-1. The ultrafine ferrite grains surrounded by the high angle boundaries evolved when the equivalent plastic strain exceeded the critical value of about 1. The number of newly evolved ultrafine grains increased with the strain; however, the average sizes did not depend on the strain. The grain size, d, depended on the strain rate and the deformation temperature. An equation, d(μm)=102.07 Z-0.16, was obtained experimentally. The details of the phenomena are compared with the dynamic discontinuous recrystallization in ferritic steels.

収録刊行物

  • 鉄と鋼

    鉄と鋼 88 (12), 857-864, 2002

    一般社団法人 日本鉄鋼協会

被引用文献 (23)*注記

もっと見る

参考文献 (60)*注記

もっと見る

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ