Fibre-matrix interaction in the delta-Al2O3-fibre reinforced aluminium piston alloy

被引：17

作者：

Wang, SC ^{[1
]}

Dudek, HJ ^{[1
]}

机构：

[1] INST AERONAUT MAT,CAE,BEIJING 100095,PEOPLES R CHINA

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 1996年 / 205卷 / 1-2期

关键词：

fibre-matrix interaction; fibre-reinforced aluminium alloy; piston alloy;

D O I：

10.1016/0921-5093(95)09976-X

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The interfaces of thermal treated delta-Al2O3-fibre-reinforced AlSil2CuMgNi piston alloys were investigated applying the methods of analytical transmission electron microscopy. The interaction of the gamma-Al2O3 with the piston alloy under spinel formation was investigated. Similar to the alpha-alumina some faces of gamma-Al2O3 act as a nucleation centre for spinel formation and a similar mechanism of the fibre-matrix interaction is observed as for the alpha-alumina. Spinel formation is observed in the neighbourhood of the fibre both of an aluminium and of a silicon grain of the matrix; in the neighbourhood of the silicon grain, most of the spinel crystals are much smaller, however. The results indicate a diffusion-driven reaction mechanism for spinel formation under contribution of oxygen released by the SiO2 binder decomposition.

引用

页码：180 / 186

页数：7

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