@article{roy_abouelella_rajendran_chikhalikar_larsen_umretiya_hoffman_rebak_2023, title={Effect of Al concentration on Fe-17Cr alloy during steam oxidation at 400 °C}, url={https://doi.org/10.1016/j.corsci.2023.111135}, DOI={10.1016/j.corsci.2023.111135}, abstractNote={Accident tolerant cladding materials should have improved properties under the LOCA conditions. FeCrAl alloys are promising materials with high-temperature steam oxidation resistance. Little efforts have been put into understanding the compositional effects on the performance of FeCrAl at operating conditions. This work focuses on understanding the effect of Al concentration in three Fe-17Cr-xAl alloys on oxidation resistance at 400 °C in steam environment. This study shows that increased Al concentration reduces the total oxide thickness, enhances the formation of a uniform Cr-oxide layer. and with sufficient Al concentration allows for the formation of a Cr-oxide, Al-oxide bilayer.}, journal={Corrosion Science}, author={Roy, Indranil and Abouelella, Hamdy and Rajendran, Rupesh and Chikhalikar, Atharva S. and Larsen, Michael and Umretiya, Rajnikant and Hoffman, Andrew and Rebak, Raul}, year={2023}, month={Jun} }
 @article{qu_abouelella_chikhalikar_rajendran_roy_priedeman_umretiya_hoffman_wharry_rebak_2023, title={Effect of nickel on the oxidation behavior of FeCrAl alloy in simulated PWR and BWR conditions}, url={https://doi.org/10.1016/j.corsci.2023.111093}, DOI={10.1016/j.corsci.2023.111093}, abstractNote={FeCrAl alloys are being investigated as candidate materials for light water reactor fuel claddings. The chemical composition of FeCrAl determines its resistance to corrosion under normal operating conditions. The purpose of this paper is to investigate the effect of 0, 1, 3 wt% Ni addition on the passivation characteristics of Fe17Cr5.5Al in oxygenated and hydrogenated simulated reactor waters for 3-month immersion. Current results show that Ni addition improves the passivation of FeCrAl under oxygenated condition and decreases the mass loss under hydrogenated conditions.}, journal={Corrosion Science}, author={Qu, Haozheng J. and Abouelella, Hamdy and Chikhalikar, Atharva S. and Rajendran, Rupesh and Roy, Indranil and Priedeman, Jonathan and Umretiya, Rajnikant and Hoffman, Andrew and Wharry, Janelle.P. and Rebak, Raul}, year={2023}, month={May} }
 @article{alsmadi_abouelella_alomari_murty_2022, title={Stress-Controlled Creep-Fatigue of an Advanced Austenitic Stainless Steel at Elevated Temperatures}, volume={15}, ISSN={["1996-1944"]}, url={https://www.mdpi.com/1996-1944/15/11/3984}, DOI={10.3390/ma15113984}, abstractNote={Creep–fatigue interaction occurs in many structural components of high-temperature systems operating under cyclic and steady-state service conditions, such as in nuclear power plants, aerospace, naval, and other industrial applications. Thus, understanding micromechanisms governing high-temperature creep–fatigue behavior is essential for safety and design considerations. In this work, stress-controlled creep–fatigue tests of advanced austenitic stainless steel (Alloy 709) were performed at a 400 MPa stress range and 750 °C with tensile hold times of 0, 60, 600, 1800, and 3600 s, followed by microstructural examinations. The creep–fatigue lifetime of the Alloy 709 was found to decrease with increasing hold time until reaching a saturation level where the number of cycles to failure did not exhibit a significant decrease. Softening behavior was observed at the beginning of the test, possibly due to the recovery of entangled dislocations and de-twining. In addition, hysteresis loops showed ratcheting behavior, although the mean stress was zero during creep–fatigue cycling, which was attributed to activity of partial dislocations. Microstructural examination of the fracture surfaces showed that fatigue failure dominated at small hold times where the cracks initiated at the surface of the sample. Larger creep cracks were found for longer hold times with a lower probability of dimpled cavities, indicating the dominance of creep deformation. The results were compared with other commonly used stainless steels, and plausible reasons for the observed responses were described.}, number={11}, journal={MATERIALS}, author={Alsmadi, Zeinab Y. and Abouelella, Hamdy and Alomari, Abdullah S. and Murty, K. L.}, year={2022}, month={Jun} }