PSI - Issue 71

Pramod Ravindra Kushwaha et al. / Procedia Structural Integrity 71 (2025) 74–81

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2. Microstructural analysis showed that the Su-263 sample had a higher precipitation density in grains and also the presence of precipitates on grain boundaries, leading to intergranular fracture. 3. As the load increased, the time at which the hump appeared was decreased. Consequently, the percentage time elapsed decreased as well. 4. The graph's negative slope indicated that higher loads caused the material to reach the critical state (hump) more quickly, accelerating failure mechanisms. 5. The load dependence of minimum deflection rate obeyed Norton’s power law and the load exponent value was found to be in agreement with the values of stress exponent for these load ranges. Al-Abedy, H. K., I. A. Jones, and W. Sun. 2018. Small Punch Creep Property Evaluation by Finite Element of Kocks-Mecking Estrin Model for P91 at Elevated Temperature. Theoretical and Applied Fracture Mechanics 98(September),244 – 54. Arunkumar, S. 2021. Small Punch Creep Test: An Overview. Metals and Materials International 27(7),1897 – 1914. Bruchhausen, M., E. Altstadt, T. Austin, P. Dymacek, S. Holmström, S. Jeffs, R. Lacalle, R. Lancaster, K. Matocha, and J. Petzova. 2018. European Standard on Small Punch Testing of Metallic Materials. Ubiquity Proceedings 1(S1),11. Chandra, S., M. K. Samal, Rajeev Kapoor, N. Naveen Kumar, V. M. Chavan, and S. Raghunathan. 2018. Deformation Behavior of Nickel-Based Superalloy Su-263, Experimental Characterization and Crystal Plasticity Finite Element Modeling. Materials Science and Engineering, A 735(May),19 – 30. Choudhary, B. K., and E. Isaac Samuel. 2011. Creep Behaviour of Modified 9Cr-1Mo Ferritic Steel. Journal of Nuclear Materials 412(1),82 – 89. Deshmukh, G. S., M. L. Prasad, D. R. Peshwe, J. Ganesh Kumar, M. D. Mathew, and G. Amarendra. 2016. Creep Properties Assessment of P92 Steel by Small Punch Creep Tests. Transactions of the Indian Institute of Metals 69(4),907 – 15. Ennis, P. J., A. Zielinska-Lipiec, O. Wachter, and A. Czyrska-Filemonowicz. 1997. Microstructural Stability and Creep Rupture Strength of the Martensitic Steel P92 for Advanced Power Plant. Acta Materialia 45(12),4901 – 7. He, Dao Guang, Y. C. Lin, Xing You Jiang, Liang Xing Yin, Li Hua Wang, and Qiao Wu. 2018. Dissolution Mechanisms and Kinetics of δ Phase in an Aged Ni -Based Superalloy in Hot Deformation Process. Materials and Design 156,262 – 71 Isaac Samuel, E., B. K. Choudhary, D. P. Rao Palaparti, and M. D. Mathew. 2013. Creep Deformation and Rupture Behaviour of P92 Steel at 923 K. Procedia Engineering 55,64 – 69. Lee, Jae Seung, Hassan Ghassemi Armaki, Kouichi Maruyama, Taro Muraki, and Hitoshi Asahi. 2006. Causes of Breakdown of Creep Strength in 9Cr-1.8W-0.5Mo-VNb Steel. Materials Science and Engineering: A 428(1 – 2),270 – 75. Manonukul, A., F. P. E. Dunne, and D. Knowles. 2002. Physically-Based Model for Creep in Nickel-Base Superalloy C263 Both above and below the Gamma Solvus. Acta Materialia 50(11),2917 – 31. Sklenička, V., K. Kuchařová, M. Svoboda, L. Kloc, J. Buršík, and A. Kroupa. 2003. Long -Term Creep Behavior of 9-12%Cr Power Plant Steels. Materials Characterization 51(1),35 – 48. S. Srinivas and M. C. Pandey, 1995. Air-environment-creep interaction in a nickel base superalloy, Engineering Failure Analysis, vol 2, no. 3. 191-196. Yokobori T, Ichikawa M. Proceedings of the First International Conference on Fracture. Yokobori T. et al. Eds 1965 2. 1039. Yokobori, A. Toshimitsu. 1999. Difference in the Creep and Creep Crack Growth Behaviour between Creep Ductile and Brittle Materials. Engineering Fracture Mechanics 62(1),61 – 78. Zhao, J. C., V. Ravikumar, and A. M. Beltran. 2001. Phase Precipitation and Phase Stability in Nimonic 263. Metallurgical and Materials Transactions A, Physical Metallurgy and Materials Science 32(6),1271 – 82. References