About this Abstract |
| Meeting |
2021 TMS Annual Meeting & Exhibition
|
| Symposium
|
Materials for High Temperature Applications: Next Generation Superalloys and Beyond
|
| Presentation Title |
Effect of Processing Parameters on Molybdenum Weld Microstructures |
| Author(s) |
Noah Kohlhorst, Govindarajan Muralidharan, Roger Miller, Kevin Faraone, Ji-Cheng Zhao |
| On-Site Speaker (Planned) |
Noah Kohlhorst |
| Abstract Scope |
Molybdenum alloys have a high melting point, good corrosive resistance, and excellent creep resistance and hence there is significant interest in understanding the microstructure and properties of welds. In this work, a series of molybdenum welds were fabricated using Gas Tungsten Arc (GTA) welding with a diversity of welded microstructures obtained. This work will present quantitative results on grain sizes, grain shapes, and grain boundary curvatures as a function of weld processing parameters obtained using a newly developed technique and the implications of these microstructural characteristics on mechanical properties of welds and the adjoining heat-affected zone.*Research sponsored by the United States Department of Energy (DOE) Office of Facilities Management (NE-31) at the Oak Ridge National Laboratory, managed by UT-Battelle, LLC for the U.S. DOE. Support and guidance were provided by Mary McCune of the US DOE. Primary funding was provided by the NASA Science Mission Directorate. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Characterization, |