Diffusion of Re and Ru in the γ' Phase of Ni Based Alloys

この論文にアクセスする

この論文をさがす

著者

抄録

The diffusion of Re and Ru in the γ′-Ni<SUB>3</SUB>Al phase has been investigated at a range of temperatures 1423–1523 K by using the pseudo-binary diffusion couples. It was found that the concentration gradient of Re appeared to promote the uphill diffusion of Al, whereas that of Ru did not promote the Al uphill diffusion. The cross interdiffusion coefficients of \\tilde<I>D</I><SUB>AlRe</SUB><SUP>Ni</SUP> and \\tilde<I>D</I><SUB>AlRu</SUB><SUP>Ni</SUP> were independent of the matrix ordering since they were comparable qualitatively between those in the γ′-Ni<SUB>3</SUB>Al and in the γ-Ni phases. The tracer diffusion coefficients for Re and Ru in Ni<SUB>3</SUB>Al were estimated by extrapolation and the obtained activation energies were consistent with the site preferences of the elements reported in the literature. Further, the results of this work suggest that the diffusion of Ru in Ni<SUB>3</SUB>Al is mostly governed by the diffusion in Ni sublattice and the diffusion of Re is mainly controlled by the formation of anti-site defects in the Ni sublattice with negligible contribution of the anti-site bridge mechanism.

収録刊行物

  • Materials transactions  

    Materials transactions 49(6), 1441-1445, 2008-06-01 

    The Japan Institute of Metals and Materials

参考文献:  28件

参考文献を見るにはログインが必要です。ユーザIDをお持ちでない方は新規登録してください。

各種コード

  • NII論文ID(NAID)
    10021147820
  • NII書誌ID(NCID)
    AA1151294X
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    13459678
  • NDL 記事登録ID
    9519551
  • NDL 雑誌分類
    ZP41(科学技術--金属工学・鉱山工学)
  • NDL 請求記号
    Z53-J286
  • データ提供元
    CJP書誌  NDL  J-STAGE 
ページトップへ