Numerical analysis on near net shape forming of Al–Al 3Ni functionally graded material

• Published in: Composites. 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
• Language: English
• Published: Elsevier Ltd 2003
• Subjects: A. Intermetallics; A. Metal-matrix composites (MMCs); C. Finite element analysis (FEA); E. Forming; C. Finite element analysis (FEA); E. Forming; A. Intermetallics; A. Metal-matrix composites (MMCs)
• ISSN: 1359-835X; 1878-5840
• DOI: 10.1016/S1359-835X(03)00023-X

The results of numerical studies on the near-net shape forming of Al–Al 3Ni 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.