Rheological Behavior of Semi--solid A356 Aluminum Alloy at Steady State

Acta Metall Sin

2006, Vol. 42

Issue (2): 163-166 DOI:

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Rheological Behavior of Semi--solid A356 Aluminum Alloy at Steady State

Zhang Yanju

北京科技大学材料科学与工程学院

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Zhang Yanju. Rheological Behavior of Semi--solid A356 Aluminum Alloy at Steady State. Acta Metall Sin, 2006, 42(2): 163-166 .

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Abstract The rheological behavior of the semi-solid slurry of A356 aluminum alloy has been studied through a Couette-type viscometer. The experimental results show that the apparent viscosity of semi-solid A356 alloy increases with the fraction solid increasing, but decreases with the shearing rate increasing in the steady-state. When the solid fraction reaches a critical value, the apparent viscosities increase rapidly. An empirical equation that shows the effect of fraction solid and shearing rate on the apparent viscosity of semi-solid A356 alloy is built as the following, =13.61exp(6.09 ) -1.01.

Key words: semi-solid A356 aluminum alloy apparent viscosity fraction solid shearing rate

Received: 11 May 2005

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