On the influence of fibre texture on shear creep behaviour of short fibre reinforced aluminium alloys

被引：0

作者：

Kausträter, G ^{[1
]}

Yawny, A ^{[1
]}

Schürhoff, J ^{[1
]}

Skrotzki, B ^{[1
]}

Eggeler, G ^{[1
]}

Stöckhert, B ^{[1
]}

机构：

[1] Ruhr Univ Bochum, Inst Mat, D-44780 Bochum, Germany

来源：

CREEP AND FRACTURE OF ENGINEERING MATERIALS AND STRUCTURES | 2001年

关键词：

D O I：

暂无

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The present work investigates creep of a metal matrix composite (MMC) which was produced by squeeze casting. An Al alloy with 11 wt.-% Zn was reinforced using 8 volume per cent of commercially available Saffil fibres (Al2O3-fibres). The MMC investigated in the present study has a random planar fibre texture. A double shear creep specimen was used to study creep under biaxial stress conditions. It was found that the addition of fibres results in a strong decrease of creep rate. Fibre reinforcement thus increases creep strength. The addition of fibres resulted in a decrease of creep ductility. Fibre reinforcement not only affected creep rate and creep ductility but moreover changed the characteristics of the stress and temperature dependence of the overall creep process. A striking result of the present investigation was that shear creep rates of specimens with fibre orientations in the shear plane and perpendicular to the shear plane did not differ significantly.

引用

页码：207 / 217

页数：11

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