Separation and Determination of TiC in in-situ TiC Particle Reinforced Fe<SUB>3</SUB>Al Based Alloys

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  • ISHIKURO Mikio
    Research Institute for Materials, Tohoku University
  • SE-HYUN Ko
    Graduate Student, Tohoku University, now Tohoku National Industrial Research Institute
  • TAKADA Kunio
    Research Institute for Materials, Tohoku University
  • HANADA Shuji
    Research Institute for Materials, Tohoku University

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Other Title
  • In-situ Tic粒子強化Fe<SUB>3</SUB>Al基複合材料中のTiCの抽出分離および定量
  • In-situ TiC粒子強化Fe3Al基複合材料中のTICの抽出分離および定量
  • In-situ TiC リュウシ キョウカ Fe3Alキ フクゴウ ザイリョウ チュウ ノ TIC ノ チュウシュツ ブンリ オヨビ テイリョウ

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Abstract

A method for separation and determination of TiC in in-situ TiC particle reinforced Fe3Al based alloys has been investigated. The results obtained are summarized as follows:<BR>(1) When samples were dissolved in a 6N hydrochloric acid at 6080°C, TiC remained as a residue. TiC was separated from the acid solution by filtration.<BR>Amount and composition of separated TiC could be determined quantitatively.<BR>(2) Fe, Al and Cr in samples were detected as soluble elements in an acidic solution, while Ti was found in the insoluble residue (TiC). Mo was detected in both the acidic solution and insoluble residue.<BR>(3) Two types of TiC particles were observed. Large ones with sizes of about 530 μ m have well developed facet structure, while small ones less than 1 μm in diameter have dendritic structure.<BR>(4) Separation procedure along with the particle size was examined. Large particles were sedimented but small particles were dispersed in acetone, so they were able to be separated by filtration. Both large and small particles in samples are identified to TiC independent of the particle size.

Journal

  • Tetsu-to-Hagane

    Tetsu-to-Hagane 85 (2), 155-159, 1999

    The Iron and Steel Institute of Japan

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