High Temperature Durability of Electrically Heated Extruded Metal Support

Paper #:
  • 940782

Published:
  • 1994-03-01
Citation:
Reddy, K., Gulati, S., Lambert, D., Schmidt, P. et al., "High Temperature Durability of Electrically Heated Extruded Metal Support," SAE Technical Paper 940782, 1994, https://doi.org/10.4271/940782.
Pages:
11
Abstract:
The design, performance and optimization of the extruded electrically heated metal converter have recently been published(1,2). The present paper focuses on the physical durability of extruded metal EHC support at high temperature representative of operating conditions. The mechanical, thermal, creep and fatigue properties of Fe-Cr-Al honeycomb structure over 25°-1000°C temperature range are reported. In addition, the stresses arising from mounting and thermal loads are computed via finite element analysis and compared with the high temperature strength of extruded metal EHC support. A safe design stress which predicts 192,000 kilometer durability is estimated from high temperature fatigue behavior of extruded Fe-Cr-Al honeycomb structure.
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