About this Abstract |
| Meeting |
MS&T25: Materials Science & Technology
|
| Symposium
|
Additive Manufacturing: Development of Powders
|
| Presentation Title |
Microstructural Differences in Alloy 800H Processed Traditionally and Additively |
| Author(s) |
Benjamin Labiner, Emre Tekoglu, Christopher Rock, Timothy Horn |
| On-Site Speaker (Planned) |
Benjamin Labiner |
| Abstract Scope |
Alloy 800H is an alloy designed for deployment in high-temperature, corrosive environments and is traditionally manufactured via wrought-processing. This alloy is well understood in it's traditionally manufactured form, but it's additively manufactured microstructure is largely unexplored. A critical feature of 800H is the formation of Chromium carbides at grain boundaries, which serve to improve creep and rupture properties. These carbides typically form during slow cooling, so their formation during the rapid cooling of additive manufacturing must be explored. Pilot scale quantities of Alloy 800H powder were manufactured via gas atomization and printed samples were made using laser and electron beam powder bed fusion.Wrought samples were compared to additively manufactured samples to observe difference in grain structure and formation of desired carbides. |