Creep Properties of Al&lt;SUB&gt;2&lt;/SUB&gt;O&lt;SUB&gt;3&lt;/SUB&gt; Particle Reinforced 6061Al Matrix Composites

Akaike, Jun; Hongo, Kazuhiro; Matsuda, Norio; Matsuura, Kiyotaka

doi:10.2320/jinstmet1952.62.1_56

Cited by 3 publications

(1 citation statement)

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“…This model can therefore cover a wider range of stress and temperature than the Norton model. The data of creep strain rate versus applied load cited from Akaike et al 16 were fitted to obtain the parameters for the Garofalo creep model. The values of Q, A, n g and a used were 125 kJ mol 21 , 8?8610 17 , 8?9 and 0?00005 respectively.…”

Section: D Image Based Numerical Simulationmentioning

confidence: 99%

Formation behaviour of blister in cast aluminium alloy

Toda

Itô

et al. 2014

International Journal of Cast Metals Research

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The formation behaviour of a blister in a die cast aluminium alloy was observed by employing a combined methodology of in situ three-dimensional observation using X-ray microtomography and image based simulation. It has been revealed, via a reverse approach based on the simulation, that nitrogen and carbon dioxide gases fill the blister nucleus. Spontaneous growth of the blister nucleus occurs through creep deformation of the surrounding aluminium due to the blister nucleus' high internal gas pressure. This internal gas pressure also induces hydrogen precipitation in the form of micropores, which undergo steady growth in a spherical shell region around the blister nucleus. The selective growth of the micropores is attributable to the elevation of hydrostatic stress in directions parallel to the casting surface, thereby promoting the expansion of the blister, also parallel to the casting surface, through the absorption of surrounding micropores into the blister nucleus.

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Section: D Image Based Numerical Simulationmentioning

confidence: 99%