来源:《中国物理学报》1950年第02期  作者:T. S. Ke
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INTERNAL FRICTION AND GRAIN BOUNDARY PRECIPITATION DURING THE AGING OF AN AL-CU ALLOY

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The precipitation at the grain boundaries during aging at 200℃ of an A1-4% Cu allovwas studied by measurements of the internal friction associated with the viscous behavior of grainboundaries.This internal friction was measured also at 200℃ with a torsion pendulum having afrequency of about one cycle per second.The results showed that the internal friction first decreaseswith aging but starts to rise after an aging of 6(1/2) hours.At very long aging times,the internalfriction decreases again(本文共计10页)......[继续阅读本文]

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