Advertisement
Published in:
2023 | OriginalPaper | Chapter
Effect of Thermal Treatment (T5) on Microstructure and Tensile Properties of Vacuum High Pressure Die Cast Al–Si–Mg Alloy
Authors : Henry Hu, Ali Dhaif, Kazi Ahmed
Published in: Light Metals 2023
Publisher: Springer Nature Switzerland
Activate our intelligent search to find suitable subject content or patents.
Select sections of text to find matching patents with Artificial Intelligence. powered by
Select sections of text to find additional relevant content using AI-assisted search. powered by
Abstract
In this work, a modified Al–Si–Mg (A356) alloy was prepared by vacuum-assisted high pressure die casting processes (V-HPDC). To release residual stresses, various thermal treatment schemes over a wide range of temperatures between 120 and 350 °C were experimented to the as-cast V-HPDC alloy, in an effort of understanding the effect of thermal treatment on tensile properties of V-HPDC modified Al–Si–Mg (A356) alloy. The morphology of eutectic silicon has a sound effect on the tensile properties of the tested alloy. The content of magnesium-based intermetallic phase, their morphology, and distribution throughout the matrix affect the tensile properties as well. The reduction in the strengths of the alloy treated at 350 °C for two hours should be at least attributed partly to the absence of the magnesium-based intermetallic phase. However, the presence of sufficient amount of magnesium intermetallic phase plays an important role in strengthening the alloy thermally treated at 200 °C.