About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Steels in Extreme Conditions
|
| Presentation Title |
Investigating the Transition in Mechanism Leading to the Creep Failure of a HP-Micro Alloy |
| Author(s) |
Martin C. H. Tse, T Ben Britton, Naveen Manikanteswaran, Dominique Flahaut, Katerina A Christofidou |
| On-Site Speaker (Planned) |
Martin C. H. Tse |
| Abstract Scope |
HP-micro alloys make up crucial furnace components used in the petrochemical industry for hydrogen production, with the high temperatures and stresses giving rise to creep degradation. With furnace operating conditions constantly evolving, it is important to better understand the alloy behaviour under different conditions. In addition, it has become apparent in recent years that HP-alloys often present a transition point that alters the primary contributing mechanism that leads to creep failure.
This work aims to identify the transition point of degradation mechanisms of the HP-micro alloy H39WM+. Small-interval creep testing is used to assess the validity of intermediate-term creep tests, through comparisons with long-term crept alloys. Furthermore, correlative EDX/EBSD analysis is used for analysis of crept microstructures to expedite characterisation. This work was supported by the EPSRC [EP/S022635], and Paralloy Group. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Characterization, Iron and Steel, High-Temperature Materials |