Effects of Platform Pre-Heating and Thermal-Treatment Strategies on Properties of AlSi10Mg Alloy Processed by Selective Laser Melting
By R. Casati, Milad Hamidi Nasab, M. Coduri, V. Tirelli, Maurizio Vedani. Metals, 2018
165 citations recorded by the source corpus.
The AlSi10Mg alloy was processed by selective laser melting using both hot- and cold-build platforms. The investigation was aimed at defining suitable platform pre-heating and post-process thermal treatment strategies, taking into consideration the peculiar microstructures generated. Microstructural analyses, differential scanning calorimetry, and high-resolution diffraction from synchrotron radiation, showed that in the cold platform as-built condition, the amount of supersaturated Si was higher than in hot platform samples. The best hardness and tensile performance were achieved upon direct aging from cold platform-printed alloys. The hot platform strategy led to a loss in the aging response, since the long processing times spent at high temperature induced a substantial overaging effect, already in the as-built samples. Finally, the standard T6 temper consisting of post-process solution annealing followed by artificial aging, resulted in higher ductility but lower mechanical strength.
Subfields: Automotive Engineering, Mechanical Engineering
View Paper: https://www.semanticscholar.org/paper/3c2602960024f4852886c15068dd3b120d0c0c43
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Citations in the corpus
- A Novel Strategy to Additively Manufacture 7075 Aluminium Alloy With Selective Laser Melting (2021, background): “8b compares the mechanical properties of the T6-treated TI-7075-AS alloy in this work with other Al alloys including those SLM-fabricated Al-Si alloys [2, 7, 52-54], SLM-fabricated 7075 Al alloys reported previously [20-23, 55, 56] and the conventional wrought 7xxx Al alloys [25].”