journal article·2018-02Open access

Hydrogen embrittlement in compositionally complex FeNiCoCrMn FCC solid solution alloy

K.E. Nygren, K.M. Bertsch, S. Wang, H. Bei, A. Nagao, I.M. Robertson

Abstract

Abstract The influence of internal hydrogen on the tensile properties of an equi-molar FeNiCoCrMn alloy results in a significant reduction of ductility, which is accompanied by a change in the fracture mode from ductile microvoid coalescence to intergranular failure. The introduction of 146.9 mass ppm of hydrogen reduced the plastic strain to failure from 0.67 in the uncharged case to 0.34 and 0.51 in hydrogen-charged specimens. The reduction in ductility and the transition in failure mode are clear indications that this alloy exhibits the classic signs of being susceptible to hydrogen embrittlement. The results are discussed in terms of the hydrogen-enhanced plasticity mechanism and its influence on hydrogen-induced intergranular failure. Furthermore, a new additional constraint that further promotes intergranular failure is introduced for the first time.
Source: openaire · Quality: candidate unverified · Source record ↗

Research context

OpenAlex topics: Hydrogen embrittlement and corrosion behaviors in metals · High Entropy Alloys Studies · High Temperature Alloys and Creep

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

References (32)

Show source-provided references
1. A critical review of high entropy alloys and related concepts10.1016/j.actamat.2016.08.081 ↗
2. Microstructures and properties of high-entropy alloys10.1016/j.pmatsci.2013.10.001 ↗
3. Fundamental deformation behavior in high-entropy alloys: an overview10.1016/j.cossms.2017.08.003 ↗
4. Tensile properties of high-and medium-entropy alloys10.1016/j.intermet.2013.03.018 ↗
5. Relative effects of enthalpy and entropy on the phase stability of equiatomic high-entropy alloys10.1016/j.actamat.2013.01.042 ↗
6. Structural and thermodynamic factors of suppressed interdiffusion kinetics in multi-component high-entropy materials
7. The influences of temperature and microstructure on the tensile properties of a CoCrFeMnNi high-entropy alloy10.1016/j.actamat.2013.06.018 ↗
8. A fracture-resistant high-entropy alloy for cryogenic applications10.1126/science.1254581 ↗
9. Influence of chemical disorder on energy dissipation and defect evolution in concentrated solid solution alloys10.1038/ncomms9736 ↗
10. Influence of chemical disorder on energy dissipation and defect evolution in advanced alloys10.1557/jmr.2016.269 ↗
11. Atomic-level heterogeneity and defect dynamics in concentrated solid-solution alloys10.1016/j.cossms.2017.02.002 ↗
12. Enhancing radiation tolerance by controlling defect mobility and migration pathways in multicomponent single-phase alloys10.1038/ncomms13564 ↗
13. Mechanisms of radiation-induced segregation in CrFeCoNi-based single-phase concentrated solid solution alloys10.1016/j.actamat.2016.12.046 ↗
14. J.-W. Yeh, Recent progress in high-entropy alloys, Annales De Chimie – Science des Materiaux 31 (2006) 633–648.10.3166/acsm.31.633-648 ↗
15. Resistance of CoCrFeMnNi high-entropy alloy to gaseous hydrogen embrittlement10.1016/j.scriptamat.2017.03.029 ↗
16. Hydrogen enhances strength and ductility of an equiatomic high-entropy alloy10.1038/s41598-017-10774-4 ↗
17. Critical grain size to limit the hydrogen-induced ductility drop in a metastable austenitic steel10.1016/j.ijhydene.2015.06.111 ↗
18. I.M. Robertson, H.K. Birnbaum, P. Sofronis, Hydrogen Effects on Plasticity, in: J.P. Hirth, L. Kubin (Eds.), Dislocations in Solids, Elsevier, 2009, pp. 249–293.10.1016/S1572-4859(09)01504-6 ↗
19. Hydrogen-enhanced localized plasticity-a mechanism for hydrogen-related fracture10.1016/0921-5093(94)90975-X ↗
20. Recent advances on hydrogen embrittlement of structural materials10.1007/s10704-015-0068-4 ↗
21. Grain-boundary engineering markedly reduces susceptibility to intergranular hydrogen embrittlement in metallic materials10.1016/j.actamat.2009.05.012 ↗
22. Hydrogen-induced intergranular failure in nickel revisited10.1016/j.actamat.2012.01.040 ↗
23. Dislocation interactions with grain boundary10.1016/j.cossms.2014.05.004 ↗
24. Hydrogen embrittlement understood10.1007/s11661-015-2836-1 ↗
25. The effect of nanosized (Ti, Mo)C precipitates on hydrogen embrittlement of tempered lath martensitic steel10.1016/j.actamat.2014.04.051 ↗
26. Hydrogen-induced intergranular failure of iron10.1016/j.actamat.2014.01.060 ↗
27. K. Bertsch, Hydrogen Effects on the Evolution of Plastic Deformation in Polycrystalline Nickel: A Mechanism for Intergranular Failure, Materials Science and Engineering, University of Illinois Urbana-Champaign, 2017.
28. The influence of hydrogen on the plastic deformation ductility and fracture of nickel in tension10.1016/0001-6160(63)90209-8 ↗
29. The effect of diffusive segregation on the fracture of hydrogen charged nickel10.1016/0001-6160(88)90128-9 ↗
30. Influence of hydrogen on the stacking-fault energy of an austenitic stainless steel
31. A TEM investigation of hydrogen-induced deformation twinning and associated martensitic phases in 304-type stainless steel10.1007/BF00566284 ↗
32. K. Nygren, The Influence of Hydrogen on the Evolving Microstructure During Fatigue Crack Growth in Metastable and Stable Austenitic Stainless Steels, Materials Science and Engineering, University of Illinois Urbana-Champaign, 2016.