Al2O3/Al-Cu-Mg粒子複合材料の時効析出に及ぼすAl2O3複合率と粒子径の影響
Al2O3/Al-Cu-Mg粒子複合材料の時効析出に及ぼすAl2O3複合率と粒子径の影響
复制标题
Al2O3复合比例和粒径对Al2O3/Al-Cu-Mg颗粒复合材料时效析出的影响
DOI：
10.2464/jilm.45.249
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发表时间：
1995
期刊：
影响因子：
--
通讯作者：
静夫 多々
中科院分区：
文献类型：
--
作者：
進 池野;勝也 古田;健二 松田;博之 穴田;保裕 上谷;静夫 多々
Effect of particle size on aging in alumina particle dispersed composite materials has been investigated by transmission electron microscopy. Age-hardening curves of composite materials containing larger alumina particles ranging from 8 to 15μm, were quite similar to those of mother alloy. In these composites, aging processes started with the formation of GPB zones and were followed by the precipitation of S' intermediate phases. While in the composite materials containing smaller alumina particles ranging from 1 to 3μm, the hardness under peak aging condition was lower than that of mother alloy. The electrical resistivity just after solid solution treatment had also lower values than that of mother alloy. Their aging processes started with the formation of GP zones and were followed by the precipitation of θ' intermediate phases. The dissimilarity of these aging processes depending on size of alumina particles caused by the decrease of magnesium content in the matrix due to the formation of spinels on alumina particles.
