6061アルミニウム合金の結晶粒度に及ぼす熱間加工条件およびCrとZr含有量の影響 Effects of hot working conditions and Cr, Zr contents on the grain size of 6061 aluminum alloy

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The correlation between compression conditions at temperatures in the range of 573–773 K with strain rate range of 0.002–2 s<sup>−1</sup> and grain size after solution heat treatment (SHT) of 6061 aluminum alloy, was investigated. It is concluded that the grain coarsening occurred under specific Zener-Hollomon parameters of 10<sup>8</sup>~2×10<sup>12</sup> s<sup>−1</sup>. This phenomenon could be explained by crystalline orientation analysis and stored deformation energy evaluation. Small Z parameter condition could get low stored strain with fine grains which were stable during SHT. High Z parameter condition could get high stored strain, so a lot of small recrystallized grains were formed after SHT. Effect of Cr and Zr contents on the grain size of 6061 aluminum alloy was also investigated. Grains were fine when 0.34 mass%Cr or 0.17 mass%Cr and 0.14 mass%Zr were added due to pinning effects of Cr bearing dispersoids and Zr bearing dispersoids to grainboundaries.

収録刊行物

  • 軽金属

    軽金属 58(4), 151-156, 2008-04-30

    The Japan Institute of Light Metals

参考文献:  13件中 1-13件 を表示

被引用文献:  2件中 1-2件 を表示

各種コード

  • NII論文ID(NAID)
    10021989092
  • 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
    9496677
  • 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  CJP引用  NDL  J-STAGE 
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