Abstract
Embedding austenitic structures with nano-twinned grains is a promising technique to enhance its strength and ductility, nano twins can be introduced via thermo-mechanical processing or via electro-deposition. In the current study, ternary Fe-Mn-C austenitic steel was cold rolled then subjected to flash annealing to keep some nano twins within the matrix. It was found that, the nano twinned condition showed better resistance to Hydrogen embrittlement (HE) than the as received state. In addition, notched samples charged with hydrogen were tensile tested to investigate the contribution of the nano-twinned grains in impeding cracks initiation/propagation, it was concluded that the prior twins distributed homogeneously the internal stresses inside the austenitic grains during the plastic deformation, which prevented cracks propagation at earlier strain level, and this delayed time till fracture happened.
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References
Koyama M, Akiyama E, Lee YK, Raabe D, Tsuzaki K (2017) Overview of hydrogen embrittlement in high-Mn steels. Int J Hydrog Energy 42:12706–12723
Park I, Jeong K, Jung J, Lee C, Lee Y (2012) The mechanism of enhanced resistance to the hydrogen delayed fracture in Al-added Fee18Mne0.6C twinning-induced plasticity steels. Int J Hydrog Energy 37:9925–9932
Ryu JH, Kim SK, Lee CS, Suh DW, Bhadeshia HKDH (2013) Effect of aluminium on hydrogen-induced fracture behaviour in austenitic Fe–Mn–C steel. Proc R Soc A 496:1–14
Yan FK, Liu GZ, Tao NR, Lu K (2012) Strength and ductility of 316L austenitic stainless steel strengthened by nano-scale twin bundles. Acta Mater 60:1059–1071
Lu K, Lu L, Suresh S (2009) Strengthening materials by engineering coherent internal boundaries at the nanoscale. Science 324:349–352
Chowdhury P, Sehitoglu H, Rateick R (2016) Recent advances in modeling fatigue cracks at microscale in the presence of high density coherent twin interfaces. Curr Opin Sol State Mater Sci 20:140–150
Greer JR (2013) It’s all about imperfections. Nat Mater 12:689–690
Khedr M, Li W, Jin X (2016) The effect of deformation twins induced previously by cold rolling on the mechanical behavior of Hadfield steel. Paper presented at the 1st ICAS and 3rd HMnS, Cheng Du, China, 16–18 Nov 2016
Wang M, Akiyama E, Tsuzuki K (2007) Effect of hydrogen on the fracture behavior of high strength steel during slow strain rate. Corr Sci 49:4081–4097
Zhu X, Li W, Zhao H, Wang L, Jin X (2014) Hydrogen trapping sites and hydrogen-induced cracking in high strength quenching & partitioning (Q&P) treated steel. Int J Hydrog Energy 39:13031–13040
Canadinc D, Efstathiou C, Sehitoglu H (2008) On the negative strain rate sensitivity of Hadfield steel. Scr Mater 59:1103–1106
Koyama M, Akiyama E, Tsuzaki K, Raabe D (2013) Hydrogen-assisted failure in a twinning-induced plasticity steel studied under in situ hydrogen charging by electron channeling contrast imaging. Acta Mater 61:4607–4618
Michler T, Marchi CS, Naumann J, Weber S, Martin M (2012) Hydrogen environment embrittlement of stable austenitic steels. Int J Hydrog Energy 37:16231–16246
Nagumo M (2004) Hydrogen related failure of steels—a new aspect. Mater Sci Tech 20:940–950
Tewary NK, Ghosh SK, Bera S, Chakrabarti D, Chatterjee S (2014) Influence of cold rolling on microstructure, texture and mechanical properties of low carbon high Mn TWIP steel. Mater Sci Eng A 615:405–415
Idrissi H, Renard K, Schryvers D, Jacques PJ (2010) On the relationship between the twin internal structure and the work-hardening rate of TWIP steels. Scr Mater 63:961–964
Acknowledgements
The authors are grateful to the financial support of the National Key R&D Program of China (No. 2016YFB0300601), National Natural Science Foundation of China (U1564203, Nos. 51571141 and 51201105).
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Khedr, M., Li, W., Jin, X. (2018). Studying Hydrogen Embrittlement in Nano-twinned Polycrystalline Fe-12.5Mn-1.2C Austenitic Steel. In: & Materials Society, T. (eds) TMS 2018 147th Annual Meeting & Exhibition Supplemental Proceedings. TMS 2018. The Minerals, Metals & Materials Series. Springer, Cham. https://doi.org/10.1007/978-3-319-72526-0_11
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DOI: https://doi.org/10.1007/978-3-319-72526-0_11
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