| About this Abstract |
| Meeting |
MS&T23: Materials Science & Technology
|
| Symposium
|
Additive Manufacturing of Metals: Microstructure, Properties and Alloy Development
|
| Presentation Title |
Laser-scanning of Arc-melted Al Alloys: Are They Representative of Additively Manufactured Ones? |
| Author(s) |
Zhaoxuan Ge, S. Mohadeseh Taheri-Mousavi |
| On-Site Speaker (Planned) |
Zhaoxuan Ge |
| Abstract Scope |
Additive manufacturing (AM) enables various advantages such as complex geometry and short supply chain. We have recently designed an additive-manufactured Al alloy with strength even higher than cast Al7075 at ambient and elevated temperatures. With gas-atomization being the major time-consuming and costly step for further enhancement of the mechanical properties of AMed products, we propose to mimic the rapid solidification during AM with arc-melted samples. We ask the following three questions: (1) to what extent do the laser-scanned microstructures resemble the AMed ones? (2) Does laser scanning manage to realize the conceived strength? (3) What are the critical factors that govern the microstructure-property relationship during laser scanning? These questions will be explored in greater depth with the aids of multi-scale SEM, TEM, and STEM characterization. Broad revelations for AM Al alloy design will also be discussed. |