발간논문

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Vol.14, No.4, 408 ~ 415, 1976
Title
Effect of Mg and Zn on the Dendrite structure and the Mechanical Properties of Al - Cu Alloys
한경섭Kyung Sup Han, 윤종규Jong Kyu Yoon
Abstract
The tensile strength and yield strength were measured in unidirectionally solidified Al-Cu binary alloys along with the secondary dendrite arm spacing to see the relationship between them. Small amounts of Mg and Zn are added to these binary alloys to study the effects on the dendrite spacings and therefore on the mechanical properties. The addition of Zn and Mg decreases the dendrite arm spacings and increases the mechanical properties of alloys. The decrease of dendrite spacing was explained in terms of Cu solute atom diffusivity effected by the addition elements.
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