Al-Cu-Li-X (In , Be) 합금의 조직과 기계적 성질의 상호관계 = Interrelationship between Structure and Mechanical Properties of Al-Cu-Li-X (In , Be) Alloy

다국어 초록 (Multilingual Abstract)

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다국어 초록 (Multilingual Abstract)

The effects of In and Be additions on the aging behaviors and mechanical properties in the Al-Cu-Li alloy were investigated using the transmission electron microscope, the scanning electron microscope, hardness and tensile strength measurement. The aging is promoted and the double hardness peak is appeared by the addition of In and Be in the Al-Cu-Li alloy. The strength is increased, but the elongation and toughness are decreased by the addition of In in the Al-Cu-Li alloy. And the Al-Cu-Li-In-Be alloy has good combination with the strength, the elogation and toughness than Al-Cu-Li-In alloy.