アルミニウム合金板の伸びに及ぼすn値と転位組織の影響 Effect of n value and dislocation structures on the elongation of aluminum alloy sheets

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The effects of the <i>n</i> value and dislocation structures on the elongation of aluminum alloy sheets were investigated. The <i>n</i> value of the aluminum alloy was not constant. It increased to the maximum <i>n</i> value and decreased with strain. When the <i>n</i> value was constant, dislocation cell structures were observed. When the <i>n</i> value decreased, microbands were observed. It was considered that an increasing <i>n</i> value denoted an increasing dislocation density and a decreasing <i>n</i> value denoted a dynamic recovery occurring such as the formation of microbands. The decreasing rate after the maximum <i>n</i> value was a more important parameter than the average or the maximum <i>n</i> value for the relationship with the elongation. The Al–Mg–Si alloys and the Al-low Mg alloys had a highly decreasing <i>n</i> value rates. The pure aluminum and Al-high Mg alloys had low decreasing <i>n</i> value rates. It was considered that the highly decreasing rate after the maximum <i>n</i> value suggested a dynamic recovery and easily occurring local necking.

収録刊行物

  • 軽金属  

    軽金属 58(7), 290-294, 2008-07-30 

    The Japan Institute of Light Metals

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各種コード

  • NII論文ID(NAID)
    10021989373
  • 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
    9602376
  • 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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