Ａｌ‐Ｚｎ‐Ｍｇ‐Ｃｕ系合金の加工熱処理と機械的性質の関係

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  • Relation between thermomechanical treatments and mechanical properties of Al-Zn-Mg-Cu base alloys
  • Al Zn Mg Cuケイ ゴウキン ノ カコウ ネツ ショリ ト キカイテキ

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説明

An investigation was carried out to clarify the effect of various final thermomechanical treatments (FTMT) on the mechanical properties of Al-Zn-Mg-Cu base alloys. The results are summerized as follows;<br>(1) Al-Zn-Mg-Cu alloy plates processed by FTMT exhibit better combination of strength vs. elongation as well as higher strength than those of conventionally processed plates.<br>(2) Sufficient preaging after quenching, warm deformation less than 30% and final aging at slightly lower temperature than that of conventional T6 temper are desirable in obtaining marked improvement in mechanical properties by FTMT.<br>(3) 7178 alloy processed by FTMT exhibits better combination of strength vs. elongation than that of 7075 alloy. Yield strength of 7178 alloy plates can be raised up to 70 kg/mm2 by FTMT.<br>(4) A high purity 7178 alloy processed by FTMT exhibits the same combination of strength vs. elongation as a commercial purity alloy.

収録刊行物

  • 軽金属

    軽金属 26 (7), 347-355, 1976

    一般社団法人 軽金属学会

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