カルシアるつぼによるTi-6Al-4V合金の溶解と鋳造欠陥 Melting of Ti-6Al-4V Alloy Using CaO Crucible and Internal Defects of its Castings

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抄録

  The CaO crucible is expected to serve as a useful tool for melting Ti and its alloys due to its thermodynamic stability. However, there still remain problems that need to be resolved in the melting of Ti and its alloys to enable commercial use. <br>  The causes of the defects of Ti-6Al-4V alloy castings melted in the CaO crucible were examined and compared with induction skull melting. The key factors of the melting technique using the CaO crucible, affecting the quality of Ti-6Al-4V alloy castings, were investigated. <br>  Defects of the Ti-6Al-4V alloy castings are caused by the chemical reduction of CaO by Ti. Pressurizing with argon gas in a vacuum induction chamber is effective for reducing the defects. Preheating of the charged material in the crucible and quick pouring into a mold of lower temperature, just after melting down, are important for producing sound Ti-6Al-4V castings.

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 75(11), 769-776, 2003-11-25

    公益社団法人 日本鋳造工学会

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各種コード

  • NII論文ID(NAID)
    10013908059
  • NII書誌ID(NCID)
    AN10514770
  • 本文言語コード
    JPN
  • 資料種別
    NOT
  • ISSN
    13420429
  • NDL 記事登録ID
    6763453
  • 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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