Fatigue and internal friction for a sintered aluminum alloy

被引：0

作者：

Hara, Akira ^{[1
]}

Yokota, Masaru ^{[1
]}

机构：

[1] Kamioka Components Co, Ltd, Gifu, Japan

来源：

Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy | 1993年 / 40卷 / 06期

关键词：

Crack propagation - Fatigue of materials - Friction meters - Grain boundaries - Internal friction - Sintering;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Fatigue phenomena in conventionally sintered Al-5%Cu-0.5%Mg-0.8%Si alloy with a density ratio of 91.5% has been investigated by using a cantilever type internal friction measurement device which is electro-magnetically driven and vibrated at the resonance frequency (fr). Changes in fr during vibration at a constant amplitude correspond to those in the internal friction (Q-1), and a marked decrease in fr occurs as a result of the formation of fatigue cracks. These cracks propagate mainly along grain boundaries in as-sintered specimens, and transgranularly in T6 treated ones.

引用

页码：598 / 601

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