Atom-probe- and X-ray Diffraction Analysis of the Composition and Structure of Precipitates Formed on Tempering of Ternary Iron-Carbon-Nitrogen Martensites

スポンサーリンク

概要

• 論文の詳細を見る

• X-ray diffraction analysis showed that both α-type precipitates (as in Fe-N) and ε/η-type precipitates (as in Fe-C) develop in ternary Fe-C-N martensite upon tempering below 450 K. Atom-probe analysis was used to study the distribution of the interstitial atoms on a local scale. Most of the enriched regions formed after tempering contain both nitrogen and carbon atoms, but in an enriched region one type of interstitial is dominant. The carbon-rich regions contain a significantly larger amount of total interstitial atoms than the nitrogen-rich regions. The total interstitial amounts are close to that in ε/η for the carbon-rich regions and close of that in α for the nitrogen-rich regions. This suggests that upon tempering Fe-C-N martensite nitrogen atoms reside preferentially in an α-type structure and carbon atoms reside preferentially in an ε/η-type structure, but that coprecipitation of nitrogen and carbon atoms occurs to a limited extent as well.

• 社団法人 日本鉄鋼協会の論文
• 1996-07-15

著者

• SMITH G.

  University of Oxford

• Bottger A.

  Delft University Of Technology Laboratory Of Materials Science

• VAN GENDEREN

  Delft University of Technology, Laboratory of Materials Science

• SIJBRANDIJ S.

  University of Oxford, Department of Materials

• MITTEMEIJER E.

  Delft University of Technology, Laboratory of Materials Science

• Van Genderen

  Delft University Of Technology Laboratory Of Materials Science

• Smith G.

  University Of Oxford Department Of Materials

• Sijbrandij S.

  University Of Oxford Department Of Materials

• Mittemeijer E.

  Delft University Of Technology Laboratory Of Materials Science

関連論文

• 3次元アトムプローブ法によるAl-Zn-Mg-(Ag, Cu)合金のPFZ内部のナノ組織解析
• Fe-Nb-X合金(X=N,C)における加工オーステナイトの軟化抑制挙動に及ぼすNbと侵入型溶質NおよびCとの複合添加効果のアトムプローブ解析
• Atom-probe- and X-ray Diffraction Analysis of the Composition and Structure of Precipitates Formed on Tempering of Ternary Iron-Carbon-Nitrogen Martensites

スポンサーリンク