Temperature-dependent electroplasticity in the Invar 36 alloy
Source abstract
Abstract
Electroplasticity of the Invar 36 alloy is investigated based on comparisions between warm and electrically-assisted (EA) uniaxial tensions experiments at different temperatures (100–600 °C) and corresponding microstructural characterizations. Under warm deformation (WD), the flow stress decreases with the increase in temperature, which is directly attributed to dynamic recovery and dynamic recrystallization. With the introduction of high electric current during deformation, it shows a temperature-dependent electroplasticity phenomenon. No difference could be observed between WD and EA samples below a critical temperature of 500 °C, above which, an obvious softening behavior takes place in EA samples. This transition in softening respective to deformation temperature clearly demonstrated that it correlates with the intrinsic current-induced dislocation annihilation and recovery rather than the traditional theory of the Joule heating effect. Our findings shed more light on the utilization of EA softening effect on the development of novel forming routines, especially for materials with limited deformability.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Electromagnetic Effects on Materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (28)
Show source-provided references
1. Microstructure and properties of friction stir welded high strength Fe–36 wt% Ni alloy10.1016/j.msea.2011.06.082 ↗
2. Effect of aging on microstructures and properties of Mo-alloyed Fe–36Ni invar alloy10.1016/j.msea.2015.12.018 ↗
3. Microstructural and tensile behavior of Fe-36% Ni alloy after cryorolling and subsequent annealing10.1016/j.msea.2016.06.004 ↗
4. Origin of zero and negative thermal expansion in severely-deformed superelastic NiTi alloy10.1016/j.actamat.2016.10.054 ↗
5. Fe-Ni Invar alloys: a review10.1016/j.matpr.2020.12.527 ↗
6. Effect of temperature and strain rate on deformation behavior of invar 36 alloy
7. A review of electrically assisted heat treatment and forming of aluminum alloy sheet10.1007/s00170-022-08996-6 ↗
8. A review of electrically-assisted manufacturing with emphasis on modeling and understanding of the electroplastic effect10.1115/1.4036716 ↗
9. A review of electrically-assisted manufacturing10.1007/s40684-015-0045-4 ↗
10. Elucidating the origin of electroplasticity in metallic materials10.4028/b-L4ep0O ↗
11. Evaluation of the athermal effect of electric pulsing on the recovery behavior of magnesium alloy10.1007/s11661-016-3804-0 ↗
12. Electric current-induced precipitation hardening in advanced high-strength steel10.1016/j.scriptamat.2022.114933 ↗
13. Modeling of thermal and mechanical behavior of a magnesium alloy AZ31 during electrically-assisted micro-tension10.1016/j.ijplas.2016.07.008 ↗
14. An experimental and modelling study of cyclic tension-compression behavior of AA7075-T6 under electrically-assisted condition10.1016/j.jmatprotec.2022.117661 ↗
15. Defect reconfiguration in a Ti–Al alloy via electroplasticity10.1038/s41563-020-00817-z ↗
16. Mechanical properties of Invar 36 alloy additively manufactured by selective laser melting10.1016/j.msea.2019.138799 ↗
17. Microstructures and unique low thermal expansion of Invar 36 alloy fabricated by selective laser melting10.1016/j.matchar.2020.110409 ↗
18. Selective laser melting of Invar 36: microstructure and properties10.1016/j.actamat.2015.10.020 ↗
19. Density and mechanical properties in selective laser melting of Invar 36 and stainless steel 316L10.1016/j.jmatprotec.2018.11.006 ↗
20. Research on the hot ductility of Fe-36Ni invar alloy10.1016/S1875-5372(15)60044-3 ↗
21. Sui · 2019
22. Evolution of microstructure, mechanical properties and residual stress of a cold rolled Invar sheet due to heat treatment10.3390/met12010110 ↗
23. On the recrystallization and texture of Fe-36% Ni alloy after accumulative roll bonding and annealing at 600 °C
24. Two mechanisms for the normal and inverse behaviors of the critical strain for the Portevin–Le Chatelier effect10.1016/j.actamat.2012.08.035 ↗
25. Integrated modeling of the gradient structure evolution during surface mechanical grinding treatment: formation mechanism and mechanical properties10.1016/j.matdes.2023.111979 ↗
26. Effect of pulsed current on the deformation behavior of AZ31B magnesium alloy10.1016/j.msea.2014.11.039 ↗
27. Effect of high-density electropulsing on microstructure and mechanical properties of cold-rolled TA15 titanium alloy sheet10.1016/j.jallcom.2008.03.027 ↗
28. Electroplastic effect and microstructural mechanism in electrically assisted deformation of nickel-based superalloys10.1016/j.msea.2022.142975 ↗