活性金属ろうによるアルミナと球状黒鉛鋳鉄の接合 Joining of Alumina to Spheroidal Graphite Cast Irons Using Active Filler Metal

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  The effects of brazing temperature, reaction layer and thermal cycle on the shear strength of Al<sub>2</sub>O<sub>3</sub>-spheroidal graphite cast iron (FCD400) and low expansion cast iron joints were studied using active filler metal. The variation of microstructures of reaction products formed at the interface between Al<sub>2</sub>O<sub>3</sub> and the active filler metal was investigated by scanning electron microscopy. Auger electron microscopy and X-ray diffraction. Shear strength of about 180 MPa was obtained at the Al<sub>2</sub>O<sub>3</sub>-FCD400 joints brazed at 1123K for 15 min, and brazing temperatures in the range of 1075-1173K did not affect shear strength. Al<sub>2</sub>O<sub>3</sub>-low expansion cast iron joint showed shear strength equivalent to the Al<sub>2</sub>O<sub>3</sub>-FCD400 joints brazed at the same temperature. There was little change in the shear strength of Al<sub>2</sub>O<sub>3</sub>-FCD400 and low expansion cast iron joints after thermal cycle 5 times between room temperature and 773K by air cooling, whereas shear strength decreased significantly or failure occurred in the alumina parallel to the interface after the same thermal cycle by water cooling. TiO oxide was formed in the interface between active filler metal and Al<sub>2</sub>O<sub>3</sub> and this reaction layer is attributed to higher shear strength of Al<sub>2</sub>O<sub>3</sub>-FCD400 and low expansion cast iron joints.

収録刊行物

  • 鋳造工学 = Journal of Japan Foundry Engineering Society  

    鋳造工学 = Journal of Japan Foundry Engineering Society 70(12), 891-896, 1998-12-25 

    Japan Foundry Engineering Society

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各種コード

  • NII論文ID(NAID)
    10002554471
  • NII書誌ID(NCID)
    AN10514770
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    13420429
  • NDL 記事登録ID
    4626706
  • NDL 雑誌分類
    ZP41(科学技術--金属工学・鉱山工学)
  • NDL 請求記号
    Z17-277
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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