純鉄の結晶粒界に偏析した<SUP>119m</SUP>Snを利用したSnの結合状態のメスバウアー解析

DOI Web Site Web Site 被引用文献1件

書誌事項

タイトル別名
  • Mössbauer Analysis on the Binding State of Tin in the Grain Boundary using <SUP>119m</SUP>Sn Segregated at the Grain Boundary
  • 純鉄の結晶粒界に偏析した119mSnを利用したSnの結合状態のメスバウアー解析
  • ジュン テツ ノ ケッショウ リュウカイ ニ ヘンセキシタ 119m Sn オ
  • M&ouml;ssbauer Analysis on the Binding State of Tin in the Grain Boundary using <SUP>119m</SUP>Sn Segregated at the Grain Boundary

この論文をさがす

抄録

Mössbauer nuclei 119mSn were doped into the grain boundary of ultra fine grained iron specimens. Various parameters such as internal magnetic field, Debye temperatures and thermal jump frequency were measured. The parameters showed that tin atoms segregated at the grain boundary are contributing a less amount of outer shell electrons to bonds with the neighboring atoms and the average force constant is reduced below that of tin in solid solution in the iron matrix. The differences, however, were small while a large difference was noticed in its internal magnetic field. The absence in the internal magnetic field suggests that iron atoms next to tin in the grain boundary are in a special state with respect to their d-level and may explain the embrittlement of steel. The oxygen-induced embrittlement which was suggested from experiments of pure iron may be a different mechanism peculiar to pure iron.

収録刊行物

  • 日本金属学会誌

    日本金属学会誌 43 (11), 1048-1055, 1979

    公益社団法人 日本金属学会

被引用文献 (1)*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