PSI - Issue 68

Swastik Soni et al. / Procedia Structural Integrity 68 (2025) 513–519 S. Soni et al. / Structural Integrity Procedia 00 (2025) 000–000

519

7

• Strain hardening exponent increases with the increase in the test temperature of the sample. • Mod P91 in small temperature range does not show much decrease in ductility. • σ o shows an expected decreasing trend with increasing temperature however the ratio σ o /σ UTS does not change much. Acknowledgements The authors would like to extend their sincere appreciation to the IIT Ropar and BARC for their invaluable support and assistance throughout the experimental work. Their expertise, access to state-of-the-art facilities, and technical guidance were instrumental in successfully conducting the experiments. The authors are deeply grateful for their extended help and cooperation at every stage of the project. References Abhishek Tiwari, G. Avinash, Saurav Sunil, R.N. Singh, Per Ståhle, J. Chattopadhyay, J.K. Chakravartty, Determination of reference transition temperature of In-RAFMS in ductile brittle transition regime using numerically corrected Master Curve approach, Engineering Fracture Mechanics, Volume 142, 2015, Pages 79-92, ISSN 0013-7944, https://doi.org/10.1016/j.engfracmech.2015.05.041. Tiwari, A., Singh, R.N. Fracture behaviour of ferritic/martensitic steels in DBT region characterized using CT and TPB specimen geometries. Int J Fract 209, 241–249 (2018). https://doi.org/10.1007/s10704-017-0250-y Liu, S.C., Hashida, T., Takahashi, H. et al. A study on fractography in the low-temperature brittle fracture of an 18Cr-18Mn-0.7N austenitic steel. Metall Mater Trans A 29, 791–798 (1998). https://doi.org/10.1007/s11661-998-0270-3 El-Soudani, S.M. Quantitative fractography and fracture mechanics characterization. JOM 42, 20–27 (1990). https://doi.org/10.1007/BF03220406 Abhishek Tiwari, Johannes Wiener, Florian Arbeiter, Gerald Pinter, Otmar Kolednik, Application of the material inhomogeneity effect for the improvement of fracture toughness of a brittle polymer, Engineering Fracture Mechanics, Volume 224, 2020, 106776, ISSN 0013-7944, https://doi.org/10.1016/j.engfracmech.2019.106776. Tiwari, A., Singh, R.N. & Ståhle, P. Assessment of effect of ductile tearing on cleavage failure probability in ductile to brittle transition region. Int J Fract 209, 53–76 (2018). https://doi.org/10.1007/s10704-017-0238-7 Soni, Swastik & Verma, Shyamlal. (2022). Double shear performance of the hybrid aluminium metal matrix composite Al6063-SiC/Al2O3 fabricated through electromagnetic stir casting process. Materials Today: Proceedings. 62. 10.1016/j.matpr.2022.04.639. Xin-wei SHE, Xian-quan JIANG, Pu-quan WANG, Bin-bin TANG, Kang CHEN, Yu-jie LIU, Wei-nan CAO, Relationship between microstructure and mechanical properties of 5083 aluminum alloy thick plate, Transactions of Nonferrous Metals Society of China, Volume 30, Issue 7, 2020, Pages 1780-1789, ISSN 1003-6326, https://doi.org/10.1016/S1003-6326(20)65338-9. Yongqiang Xian, Juan Liu, Chonghong Zhang, Jiachao Chen, Yitao Yang, Liqing Zhang, Yin Song, Fractal characteristics of fracture morphology of steels irradiated with high-energy ions, Journal of Nuclear Materials, Volume 461,2015, Pages 171-177, ISSN 0022-3115, https://doi.org/10.1016/j.jnucmat.2015.03.022. Mikhail Kolesnik,Micro-mechanisms of the ductile-to-brittle transition in hydrogenated zirconium alloys: A review and a comparison analysis of experimental data and theoretical approaches, Engineering Failure Analysis, Volume 159,2024,108110,ISSN 1350-6307, https://doi.org/10.1016/j.engfailanal.2024.108110. Shengli Li, Chunjin Hang, Wei Zhang, Yanhong Tian, Dan Yu, Ying Ding, Xiuli Wang, Fracture behavior and constitutive relations of Sn-3.0Ag 0.5Cu solder alloy at cryogenic temperature, Materials Science and Engineering: A, Volume 896,2024,146280, ISSN 0921-5093, https://doi.org/10.1016/j.msea.2024.146280. Johannes Tlatlik, Investigation of cleavage fracture under dynamic loading conditions: Part I fractographic analysis, Engineering Fracture Mechanics, Volume 184, 2017, Pages 39-50, ISSN 0013-7944, https://doi.org/10.1016/j.engfracmech.2017.08.014. M. Koide, A. Kikuchi, T. Yagi, M. Nagumo, Brittle fracture initiation in low carbon steels at the ductile-brittle transition temperature region, Materials Science and Engineering: A, Volume 176, Issues 1–2, 1994, Pages 171-175, ISSN 0921-5093, https://doi.org/10.1016/0921 5093(94)90972-5. Jiaxin Wu, Xin Jin, Shuo Mi, Jinbo Tang, an effective method to compute the box-counting dimension based on the mathematical definition and intervals, Results in Engineering, Volume 6, 2020, 100106, ISSN 2590-1230, https://doi.org/10.1016/j.rineng.2020.100106. Zener, C. and Hollomon, J.H., 1944. Plastic flow and rupture of metals. Trans. AsM, 33, pp.163-235. Barik, R.K., Ghosh, A. and Chakrabarti, D., 2023. Fundamental insights on ductile to brittle transition phenomenon in ferritic steel. Materialia, 27, p.101667. Hähner, P. and Stamm, H., 1995. A dislocation dynamical theory of the ductile-to-brittle transition. Acta metallurgica et materialia, 43(7), pp.2797 2805. Sahu, S., Yadav, P.C. and Shekhar, S., 2017. Fractal analysis as applied to fractography in ferritic stainless steel. Metallography, Microstructure, and Analysis, 6, pp.598-609. Hohenwarter, A., Kammerhofer, C. and Pippan, R., 2010. The ductile to brittle transition of ultrafine-grained Armco iron: an experimental study. Journal of materials science, 45, pp.4805-4812.