| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Environmental Degradation of Additively Manufactured Materials
|
| Presentation Title |
The effect of Microstructure and Heat Treatment on the Oxidation Behavior of Additively Manufactured 316H Alloy |
| Author(s) |
Sebastien Dryepondt, Juho Lehmusto, Peeyush Nandwana, Selda Nayir |
| On-Site Speaker (Planned) |
Juho Lehmusto |
| Abstract Scope |
Austenitic stainless 316H is widely used in structural applications at elevated temperatures due to its heat resistance properties and high tensile strength. These properties can be further modified by tailoring the microstructure through additive manufacturing. Laser powder bed fusion 316H samples were fabricated using two set of printing parameters to control the grain structure and were oxidized at 650 °C and 750 °C in air. Specimens were evaluated in the as printed condition and after a 6h at 1200°C recrystallization heat treatment. Thermogravimetric measurements were conducted for 100h, while 100h cyclic oxidation testing was performed for 1000h. The oxide scales and subsurface affected zones were characterized to establish correlation between the oxide scale growth kinetics and Cr depletion profiles. The impact of the grain and cellular structures on the oxidation kinetics of 316H will be discussed and key differences in oxidation behavior between 316L and 316H will be highlighted. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Environmental Effects, High-Temperature Materials |