アルミニウム溶湯による鋼管及びチタン管の鋳ぐるみ接合における溶射の有効性 Effect of Thermal Spraying in Cast-In Insertion of Steel and Titanium in Alminum Castings

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  Thermal spray enhancing was applied in the cast-in insertion of steel and titanium in aluminum castings. An Al-12 % Si alloy was used for spraying. In a high temperature holding experiment, a fitted cylinder specimen, steel or Ti pipe inside and Al cylinder outside, was held in a furnace at 1073 K for various length of time up to 1000 s. The state of bonding was evaluated by microscopic observation and shear strength test on the cooled specimens. Experimental results showed that liquid phase contact longer than about 400 s yields good metallurgical bonding both in steel and Ti inserts with Al-Si alloy spray coatings as well as Ag and Au plated inserts. No bonding was achieved without the coating. In the cast-in experiments, good bonding was obtained by preheating the mold and inserts with sprayed or plated coatings. Solidification analysis reveald that about 400 s of liquid state contact before solidification of the melt is required for good bonding. Formation of alloyed or intermetallic compound layers, without harmful oxide films, was confirmed at the bonding interface by microstructure observation and EPMA analysis.

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(4), 247-253, 1998-04 

    Japan Foundry Engineering Society

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各種コード

  • NII論文ID(NAID)
    10002553685
  • 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
    4459427
  • 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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