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Type: 
Journal
Description: 
This work aims at investigating the impact behavior of an additively manufactured AlSi10Mg alloy subjected to different heat-treatment conditions. The commonly used heat-treatment routes were compared with a novel route (HPT6), which combines hot isostatic pressing (HIP), gas quenching, and ageing at high pressures. The as-built and treated alloy was characterized by Charpy impact testing and several microstructural and fractographic techniques, such as scanning electron microscopy, transmission electron microscopy (TEM), and X-ray diffraction. The as-built material displayed a very fine non-equilibrium microstructure, which led to a high impact strength but limited absorbed energy. Low-temperature annealing severely modified the starting microstructure of the alloy and restored its equilibrium condition. Even though this alloy did not suffer from strength loss, its absorbed energy increased significantly …
Publisher: 
Elsevier
Publication date: 
20 Jan 2021
Authors: 

Maverick Giovagnoli, Marialaura Tocci, Annalisa Fortini, Mattia Merlin, Matteo Ferroni, Andrea Migliori, Annalisa Pola

Biblio References: 
Volume: 802 Pages: 140671
Origin: 
Materials Science and Engineering: A