Influence of SDAS on the High Temperature Tensile Behaviour of the C355 Al Alloy

Abstract:

The aim of the present study was to characterize the high temperature tensile behaviour of the C355 (Al-Si-Cu-Mg) alloy produced under controlled casting condition so as to obtain different secondary dendrite arm spacing (SDAS). C355 samples were produced through a gradient solidification equipment able to produce microstructures with fine (20-25 μm) and coarse (50-70 μm) SDAS values. The as-produced specimens were subjected to hot-isostatic pressing and then T6 heat treated. Microstructural characterization, room and high temperature (200 °C) tensile tests were carried out on the heat treated specimens. The tensile behaviour was related to the different SDAS value of the samples.

• Periodical: Materials Science Forum (Volumes 783-786)
• Pages: 228-233
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.783-786.228
• Online since: May 2014
• Authors: Lorella Ceschini*, A. Jarfors, A. Morri, A. Morri, F. Rotundo, S. Seifeddine, S. Toschi
• Keywords: Al-Si-Cu Alloys, High-Temperature, Microstructure, Tensile Properties

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