“…[42] These tests include short term tests (<5000 h) and long-term tests (!5000 h) in static and flowing LBE. [60] A cross-section view of T91 exposure for 15 028 h to flowing oxygen-containing (0.016 ppm) LBE at 550°C and flow velocity 2 m s À1 is given in Figure 1. HT-9 (e.g., [51,52] ), T-91 (e.g., [53,54] ), T-410 (e.g., [51,55] ), and EP823 (e.g., [53] ).…”