| About this Abstract |
| Meeting |
MS&T21: Materials Science & Technology
|
| Symposium
|
Additive Manufacturing: Advanced Characterization for Industrial Applications
|
| Presentation Title |
The Influence of the Characteristic Microstructure of Additively Manufactured AlSi10Mg on the Mechanical Behaviour at Various Strain Rates |
| Author(s) |
Natalia B. Ghisi, Henrique Ramos, Rafael Santiago, Lewis Kindleyside, Wesley Cantwell, Nesma Aboulkhair |
| On-Site Speaker (Planned) |
Natalia B. Ghisi |
| Abstract Scope |
The capability of additive manufacturing to fabricate complex geometries enables engineering the mechanical performance and failure modes of components through controlled-porosity in the form of lattice structures. The energy absorption field, among other sectors, is largely benefitting from this. Understanding the mechanical behavior of these designs under various strain rates is imperative for designing energy absorption structures, such as protective panels and impact-shielding. Thus, this research presents a study on the influence of the microstructure and anisotropy of AlSi10Mg lattice structures produced by Laser Powder Bed Fusion (L-PBF) on their mechanical behaviour when tested under various strain rates. The samples were built using various build directions and scan strategies. Metallography was used to study the microstructure and the fracture surfaces. These results were analyzed together with mechanical testing results obtained using Digital Image Correlation (DIC) technique to develop a full understanding of the process-structure-property relationships in L-PBF produced lattice structures. |