| About this Abstract |
| Meeting |
2021 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing for Energy Applications III
|
| Presentation Title |
Microstructural Stability and Creep Behavior of an Additively Manufactured Al-Ce-Ni-Mn Alloy |
| Author(s) |
Richard A. Michi, Kevin Sisco, Sumit Bahl, Jonathan Poplawsky, Lawrence Allard, Ryan Dehoff, Alex Plotkowski, Amit Shyam |
| On-Site Speaker (Planned) |
Richard A. Michi |
| Abstract Scope |
Additive manufacturing provides opportunities for development of aluminum alloys that may be used in the 250–400 °C temperature range. These alloys have long been sought as potential replacements for steels, Ti alloys, and Ni-based superalloys, providing weight and/or cost reductions. In this presentation, unique microstructural features in an additively manufactured Al-11.3Ce-3.2Ni-1.15Mn (wt.%) alloy will be related to its promising elevated-temperature mechanical properties. In addition to a discussion of creep deformation mechanisms, alloy microstructural stability is evaluated at 300–400 °C by electron microscopy in conjunction with microhardness measurements. Insights into atomic-scale phase composition and interfacial structures from atom-probe tomographic (APT) analyses are also discussed. APT was conducted at the Center for Nanophase Materials Sciences (CNMS), which is a U.S. DOE Office of Science user facility. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Aluminum, High-Temperature Materials |