高濃度のZnを含有するAl-Zn合金の時効硬化と疲労強度 Age hardening and fatigue strength of Al-Zn alloys with high Zn concentration

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Soft surface layer formed after low temperature aging was studied on Al–12, 16, 18 and 20 mass%Zn alloy by means of hardness test and resistometry. The soft surface layer could not be observed in 20%Zn alloy aged at 273 K when the quenching temperature was higher than 673 K. The thickness of the soft surface layer in the specimen aged at 273 K after quenching from 673 K decreased with increase of Zn concentration. Aging curve in resistivity showed the depression of the growth of GP zones in the surface layer relative to the interior of the specimen. Fatigue strength in the repeated tensile mode was higher when the soft surface layer formed during aging was thicker. The soft surface layer formed by partial reversion treatment also increased fatigue strength.

収録刊行物

  • 軽金属  

    軽金属 48(2), 98-102, 1998-02-28 

    The Japan Institute of Light Metals

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各種コード

  • NII論文ID(NAID)
    10002664461
  • 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
    4413754
  • 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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