Recovery and recrystallization in cold worked Fe - O steels

A. Belyakov, Y. Sakai, T. Hara, Y. Kimura, K. Tsuzaki

研究成果: ジャーナルへの寄稿会議記事査読

2 被引用数 (Scopus)

抄録

Several Fe - O samples containing different fractions of dispersed oxides were processed by mechanical milling followed by consolidating rolling. The samples were annealed at 1000°C and then compressed to strains of 0.35, 1.2, and 1.9 at an ambient temperature. Dispersed oxides with size of about 20 nm were homogeneously distributed throughout the ferrite matrix and their volume fractions varied from about 0.3% to 2.0%. To study the annealing softening mechanisms, the cold-worked specimens were annealed for an hour at 700°C and 800°C. The fine dispersion of oxide particles was very effective to suppress any softening processes. Primary recrystallization fully developed in the samples with volume fraction of dispersed oxides of about 0.3%. Increase in the fraction of dispersed oxides resulted in decrease of the fraction recrystallized. In the samples containing 2.0 vol.% of dispersed oxides, only recovery was the annealing softening process irrespective of the preceding cold strain. The critical volume fraction of dispersed particles for development of the primary recrystallization is considered to range from 0.5 to 2.0%.

本文言語英語
ページ(範囲)229-234
ページ数6
ジャーナルMaterials Science Forum
467-470
I
DOI
出版ステータス出版済み - 2004
外部発表はい
イベントProceedings of the Second Joint International Conferences on Recrystallization and Grain Growth, ReX and GG2, SF2M - Annecy, フランス
継続期間: 8月 30 20049月 3 2004

!!!All Science Journal Classification (ASJC) codes

  • 材料科学一般
  • 凝縮系物理学
  • 材料力学
  • 機械工学

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