About this Abstract |
Meeting |
MS&T22: Materials Science & Technology
|
Symposium
|
Additive Manufacturing of Metals: Microstructure, Properties and Alloy Development
|
Presentation Title |
Influence of Post-Processing Techniques on Process-induced Defects in AM AlSi10Mg and CP-Ti |
Author(s) |
Austin Q. Ngo, Hannah Sims, John J. Lewandowski |
On-Site Speaker (Planned) |
Austin Q. Ngo |
Abstract Scope |
Additive Manufacturing (AM) processes have versatile capabilities but are susceptible to the formation of non-equilibrium microstructures, process-induced defects, and porosity, which have deleterious effects on the mechanical performance of AM-processed structural materials. A variety of post processing techniques were investigated as a method of reducing process defect severity and improving mechanical properties. Specimens of Laser Hot Wire CP-Ti and LPBF AlSi10Mg were fabricated over a range of process parameters, followed by post processing in different ways to illustrate beneficial changes in mechanical performance. Fracture surfaces were analyzed using OM and SEM methods. The effects of post processing techniques on both LHW CP-Ti and LPBF AlSi10Mg will be discussed in terms of mechanical properties and fractography. |