Numerical analysis on near net shape forming of Al–Al3Ni functionally graded material

The results of numerical studies on the near-net shape forming of Al-Al3Ni functionally graded material (FGM) are presented and are compared with the experiments. FGM billets at an elevated temperature of semi-solid condition are set in a container and are subject to backward extruding, and FGM cups...

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Published inComposites. Part A, Applied science and manufacturing Vol. 34; no. 4; pp. 371 - 382
Main Authors Okada, Hiroshi, Fukui, Yasuyoshi, Sako, Ryoichi, Kumazawa, Noriyoshi
Format Journal Article
LanguageEnglish
Published Oxford Elsevier 01.04.2003
Subjects
Applied sciences
Exact sciences and technology
Metals. Metallurgy
Powder metallurgy. Composite materials
Production techniques
Technology
Viscosity
Deformation
Intermetallic compound
Forming
Aluminium
Composite material
C. Finite element analysis (FEA)
E. Forming
Flow(fluid)
Functionnally graded material
A. Metal-matrix composites (MMCs)
Nickel Aluminides
A. Intermetallics
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ISSN1359-835X
DOI10.1016/S1359-835X(03)00023-X

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Summary:The results of numerical studies on the near-net shape forming of Al-Al3Ni functionally graded material (FGM) are presented and are compared with the experiments. FGM billets at an elevated temperature of semi-solid condition are set in a container and are subject to backward extruding, and FGM cups are obtained. Due to the composition gradient of FGM the effective viscosity of semi-melt FGM billet varies spatially. The flow/deformation of semi-melt FGM billet is strongly influenced by the spatial variation of effective viscosity. Some characteristic behaviors of flow/deformation of FGM during the semi-solid process are presented and discussed.
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ISSN:1359-835X
DOI:10.1016/S1359-835X(03)00023-X