Effects of Zr content on elongation of Al–Sc alloy
Effects of Zr content on elongation of Al–Sc alloy
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DOI：
10.1179/174328409x443263
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发表时间：
2010-10
影响因子：
1.8
通讯作者：
Min Song-;Y. He
中科院分区：
文献类型：
--
作者：
Min Song-;Y. He
本文研究了Zr含量对Al-Sc合金延伸率的影响。结果表明，所有测试合金的伸长率随着退火时间的增加而降低。退火过程中伸长率的降低是由于第二相颗粒尺寸和体积分数的增加，导致颗粒间距和几何滑移距离随着退火时间的延长而减小。在任意退火时间，伸长率随着Zr含量的降低而增加，表明Zr含量较高的合金具有较低的伸长率。 Zr含量较高的合金的延伸率较低，这是由于其密度和体积分数较大，第二相颗粒的尺寸和间距较小，从而显着减小了几何滑移距离。
This paper studied the effect of Zr content on the elongation of an Al–Sc alloy. It has been shown that the elongation decreases with increasing annealing time for all the tested alloys. The decrease in the elongation during annealing is due to the increases in the size and volume fraction of the second phase particles, which results in the decreases in the particle interspacing and geometric slip distance with the annealing time. At any annealing time, the elongation increases with decreasing Zr content, indicating that the alloy with a higher Zr content has a lower elongation. The low elongation of the alloy with higher Zr content results from the larger density and volume fraction, and smaller size and interspacing of the second phase particles, which substantially decreases the geometric slip distance.