Ni-Cr基合金の高温酸化スケールにおよぼすTi, Nb, Wの影響

DOI Web Site Web Site
  • 西 義
    防衛庁技術研究本部第一研究所

書誌事項

タイトル別名
  • Effects of Addition of Titanium, Niobium and Tungsten on the Scales of Ni-Cr-Base Alloys at High Temperatures
  • Ni-Crキ ゴウキン ノ コウオン サンカ スケール ニ オヨボス Ti , Nb , W ノ エイキョウ

この論文をさがす

抄録

Studies were made by X-ray diffraction method on the scales formed on the surfaces of Ni-Cr-Ti, Ni-Cr-Nb and Ni-Cr-W alloys. The following results have been obtained. (1) NiOTiO2 was formed in the scales of Ni-20Cr-1Ti alloy at temperatures above 1100°C, and in those of Ni-20Cr-2Ti alloy above 1000°C. NiO, NiOTiO2, Cr2O3 and TiO2 were formed in the latter scales at a temperature as high as 1300°C. Formation of NiOCr2O3 was hindered, as NiOTiO2 grew. (2) CrNbO4 was formed in the scales of Ni-20Cr-2Nb alloy above 1200°C, and in those of Ni-20Cr-4Nb alloy above 1000°C. The scales of these alloys consisted of NiO, NiOCr2O3, Cr2O3 and CrNbO4. No NiONb2O5 was observed in these scales. (3) Four sorts of oxides, Cr2O3, NiO, NiOCr2O3 and NiOWO3 were formed in the scales of Ni-20Cr-5W alloy. Formation of the last three oxides was observed in such scales formed above 1000°C.

収録刊行物

  • 日本金属学会誌

    日本金属学会誌 26 (8), 484-489, 1962

    公益社団法人 日本金属学会

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ