一方向配向ラメラ組織を有する多結晶TiAl基合金の強度異方性 Anisotropic strength in a TiAl base polycrystal with unidirectionally oriented Iamellae

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A Ti–44.1 at%Al–1.6 at%Mn alloy with unidirectionally oriented lamellar structure was made by using heavy extrusion of a mixture of titanium and Al–Mn alloy powder followed by reactive sintering under HIP. Compression tests were performed for 5 × 5 × 6 mm samples prepared in such a way that angle between the extrusion direction and compression one becomes 0°, 30°, 45°, 60° or 90°. The yield strength at 293 K is found to strongly depend on the above angle, i.e., the 0° sample shows the highest strength, the 90° sample the second while the other samples show much lower strengths. A similar anisotropic yield strength is observed for the results obtained at 1073 K although the strength of the 0° sample is much higher than that of the 90° one. Anisotropic deformation behavior observed in the present investigation is discussed in comparison with that for TiAl PST crystals reported by Fujiwara et al..

収録刊行物

  • 軽金属  

    軽金属 49(7), 282-286, 1999-07-30 

    The Japan Institute of Light Metals

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各種コード

  • NII論文ID(NAID)
    10002666584
  • NII書誌ID(NCID)
    AN00069773
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    04515994
  • NDL 記事登録ID
    4807867
  • NDL 雑誌分類
    ZP41(科学技術--金属工学・鉱山工学)
  • NDL 請求記号
    Z17-284
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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