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A 6061 합금의 기계적 특성에 미치는 2단시효의 영향
이보배 ( Bo-bae Lee ),임항준 ( Hang-joon Im ),정걸채 ( Geol-chae Jeong ) 한국열처리공학회 2019 熱處理工學會誌 Vol.32 No.2
The impact of two-step treatment on the mechanical properties of the 6061 Al alloy was investigated by testing the hardness and electrical conductance values. After two-step aging treatment, the hardness and electrical conductivity of the alloy was increased, and if the first aging treatment temperature was lower than the secondary aging treatment temperature, both the hardness and the electrical conductivity were not increased. The higher the temperature of the first aging treatment, the higher the hardness. The temperature of the first aging treatment is 175℃, 150℃, 120℃, and the second is 175℃ and 120℃. (Received January 15, 2019; Revised January 17, 2019; Accepted January 21, 2019)