アルゴンガスアトマイズ法による高Si-Al合金粉末の放電プラズマ焼結 Spark Plasma Sintering of Ar Gas Atomized High Si-Al Alloy Powder

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Argon gas atomized powder of Al-25mass%Si-3.5%Fe-3.5%Ni-1%Mg alloy was sintered by Spark Plasma Sintering (SPS) method. This powder and the bulk samples obtained by this sintering method were investigated by means of scanning electron microscopy, optical microscopy, X-ray diffraction and Rockwell hardness measurements. Results obtained were as follows;<BR>(1) The most of powder particles have a structure consisting of Al-Si matrix and sphere like precipitates of metastable compounds enriched in Fe and Ni. The other particles have needle like shape in the precipitates of metastable compound. This metastable compound is presumed to be Al<SUB>m(m=4.4)</SUB> Fe structure in which a part of Fe is substituted by Ni.<BR>(2) The Rockwell hardness of specimen sintered at 500°C by SPS method is higher than that obtained by the powder forging method. The higher hardness in the specimen procured by SPS method is attributed by the fine structure of compacts because of a completion of sintering in a short time.

収録刊行物

  • 粉体および粉末冶金  

    粉体および粉末冶金 43(10), 1193-1197, 1996-10-15 

    Japan Society of Powder and Powder Metallurgy

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各種コード

  • NII論文ID(NAID)
    10002260767
  • 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
    4057321
  • 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  CJP引用  NDL  J-STAGE 
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