Post-Processing of AM-SLM AlSi10Mg Specimens: Mechanical Properties and Fracture Behaviour Academic Article uri icon

abstract

  • In this paper, the mechanical properties and fracture behavior of additive manufactured AlSi10Mg specimens were investigated. The samples were manufactured by the powder- bed process known as Selective Laser Melting and underwent machining afterwards. Nine samples were tested in the as-built condition, as well as after stress relief heat treatment at two temperatures (573K and 813K); six samples were tested after Hot Isostatic Pressing (HIP) treatments at two temperatures (600K and 800K) under a 100MPa Isostatic pressure. The results were analyzed and revealed that the post-processing treatments had a profound effect on the overall mechanical properties. HIP treatments show a trend of an inverse relation, the increase in HIP temperature leads to a decrease in tensile strength. Another phenomenon observed after the HIP treatment was the elimination of porosity and the …

publication date

  • January 1, 2015