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Evaluation of microstructure and mechanical properties in friction stir welded A356 + 15%SiCp cast composite

Amirizad, M ; Sharif University of Technology | 2006

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  1. Type of Document: Article
  2. DOI: 10.1016/j.matlet.2005.09.035
  3. Publisher: 2006
  4. Abstract:
  5. Friction Stir Welding (FSW) is a novel solid state welding process for joining materials. In this process a high speed tool is introduced into the weld seam and due to localized frictional heat, plastic deformation and transverse movement along the weld seam, joining is accomplished. In this study aluminum matrix composite A356 + 15%SiCp is chosen for friction stir welding. Fragmentation of SiC particles and silicon needles existing in eutectic phase as well as their homogenous distribution as a result of stirring with high plastic strains, improve mechanical properties such as modulus of elasticity, yield and ultimate strength, elongation and hardness in the weld zone compared to that of the base composite. Results of this research indicate that FSW is a suitable process for joining aluminum matrix composite castings. © 2005 Elsevier B.V. All rights reserved
  6. Keywords:
  7. Composite materials ; Elastic moduli ; Friction ; Joining ; Mechanical properties ; Microstructure ; Plastic deformation ; Seam welding ; Tools ; A356+155 Sic p composites ; Friction stir welding ; Localized frictional heat ; Welding
  8. Source: Materials Letters ; Volume 60, Issue 4 , 2006 , Pages 565-568 ; 0167577X (ISSN)
  9. URL: https://www.sciencedirect.com/science/article/abs/pii/S0167577X05009201