HIP法により製造したTiB_2-TiAl複合材料の高温変形特性 High Temperature Deformation Properties in TiB_2-TiAl Composites Produced by HIP Method

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TiAl-TiB<SUB>2</SUB> composites with 0, 10, 15 and 20vol%TiB<SUB>2</SUB> were produced by MA-HIP method using pure Ti, Al and TiB<SUB>2</SUB> powders. Microstructures and mechanical properties of the composites at elevated temperatures were investigated as well as MA process. Obtained results are as follows. The partial amorphization was found during MA process even in powders containing TiB<SUB>2</SUB> particles. Microstructures of HIPed compacts tend to become finer with increase of volume percent of TiB<SUB>2</SUB>. Compacts with the addition of TiB<SUB>2</SUB> particles were consisting of TiAl, Ti<SUB>3</SUB>Al and TiB<SUB>2</SUB> phases. herefore, it was confirmed that there was little reaction between TiAl and TiB<SUB>2</SUB> particles during sintering. The flow stress was increased with increase of TiB<SUB>2</SUB> volume percent, although the increment of flow stress by the effect of dispersing of TiB<SUB>2</SUB> decreased as the temperature rose. The strain rate sensitivity exponents (m values) were found to be larger than 0.3 at 1373K for any specimen.

収録刊行物

  • 粉体および粉末冶金

    粉体および粉末冶金 44(7), 647-652, 1997-07-15

    Japan Society of Powder and Powder Metallurgy

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各種コード

  • NII論文ID(NAID)
    10002014185
  • NII書誌ID(NCID)
    AN00222724
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    05328799
  • NDL 記事登録ID
    4258095
  • NDL 雑誌分類
    ZP41(科学技術--金属工学・鉱山工学)
  • NDL 請求記号
    Z17-274
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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