Study on electropulsing assisted turning process for AISI 304 stainless steel

Wang, H.; Chen, L.; Liu, D.; Song, Guolin; Tang, Guoyi

doi:10.1179/1743284715y.0000000034

Cited by 25 publications

(13 citation statements)

References 33 publications

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“…Therefore, EPT has been used to heal microcracks in metallic materials [ 36 , 37 , 38 ]. EPT has been used for auxiliary turning operations to enhance the plastic deformation and cutting performance of the workpiece [ 39 , 40 ]. In addition, electropulsing could induce the redistribution of particles in liquid suspensions and helps clean molten materials from insulating oxides [ 41 , 42 ] and electrically neutral non-metallic inclusions [ 43 ].…”

Section: Introductionmentioning

confidence: 99%

Application of High-Density Electropulsing to Improve the Performance of Metallic Materials: Mechanisms, Microstructure and Properties

et al. 2018

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The technology of high-density electropulsing has been applied to increase the performance of metallic materials since the 1990s and has shown significant advantages over traditional heat treatment in many aspects. However, the microstructure changes in electropulsing treatment (EPT) metals and alloys have not been fully explored, and the effects vary significantly on different material. When high-density electrical pulses are applied to metals and alloys, the input of electric energy and thermal energy generally leads to structural rearrangements, such as dynamic recrystallization, dislocation movements and grain refinement. The enhanced mechanical properties of the metals and alloys after high-density electropulsing treatment are reflected by the significant improvement of elongation. As a result, this technology holds great promise in improving the deformation limit and repairing cracks and defects in the plastic processing of metals. This review summarizes the effect of high-density electropulsing treatment on microstructural properties and, thus, the enhancement in mechanical strength, hardness and corrosion performance of metallic materials. It is noteworthy that the change of some properties can be related to the structure state before EPT (quenched, annealed, deformed or others). The mechanisms for the microstructural evolution, grain refinement and formation of oriented microstructures of different metals and alloys are presented. Future research trends of high-density electrical pulse technology for specific metals and alloys are highlighted.

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Section: Introductionmentioning

confidence: 99%

Application of High-Density Electropulsing to Improve the Performance of Metallic Materials: Mechanisms, Microstructure and Properties

et al. 2018

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“…The application of electropulsing has been extensively studied in recent years. These studies showed that the electropulsing treatment can have a marvellous application foreground in affecting the plasticity 9 10 11 12 , recrystallization 12 13 14 15 , phase transformation 16 17 18 19 20 , microstructural evolution 1 2 21 22 , cast microstructure 23 and fatigue life 24 of alloys. The effect of electropulsing treatment on the formability of metallic materials were also studied extensively 25 26 27 .…”

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confidence: 99%

Room temperature texturing of austenite/ferrite steel by electropulsing

Rahnama

Qin

2017

Sci Rep

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The work reports an experimental observation on crystal rotation in a duplex (austenite + ferrite) steel induced by the electropulsing treatment at ambient temperature, while the temperature rising due to ohmic heating in the treatment was negligible. The results demonstrate that electric current pulses are able to dissolve the initial material’s texture that has been formed in prior thermomechanical processing and to produce an alternative texture. The results were explained in terms of the instability of an interface under perturbation during pulsed electromigation.

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“…Literature reports a wide range of EP-induced micro structure-property changes. These range from plastic deformation [5,[11][12][13][14]21] to recovery-recrystallisation [2,5,6,15,16,20,[34][35][36][37] and even dynamic recrystallisa tion [8,18], from phase transformation [3,9,[38][39][40] to the dissolution of the second phase [4] and crystallisation [41][42][43][44][45], from grain refinement [1,19] to possible modifications in slip systems [17] and developments of preferred orientations [1,46], from crack healing [7,[47][48][49] to improvements in machinability [50,51] -the list is indeed exhaustive. Researchers tried to explain the EP-induced changes from the tenets of electromigration theory [5] and/or multiple other factors [1,5].…”

Section: Discussionmentioning

confidence: 99%

Electropulsing-induced plastic deformation in an interstitial free steel

Raut

Fuloria

Baka

et al. 2022

Materials Science and Technology

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Direct observations on electropulsing (EP)-induced microstructural evolution, in interstitial free (IF) steel with different prior rolling reductions, brought out clear evidence of plastic deformation, changes in mesostructures and local mechanical properties. Although plastic strains and strain modes differed widely among the surface grains, these appeared orientation-dependent. In particular, the microstructural evolution was more pronounced when prior cold work was present and also along the transverse direction to the introduced EP. Finite element simulations showed a significant difference in locational and directional dependence of simulated magnetic flux density and stored magnetic energy. It appears that magnetic Lorentz force, providing torque to dislocation dipoles, acted as the mechanistic origin behind the microstructural changes.

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Study on electropulsing assisted turning process for AISI 304 stainless steel

Cited by 25 publications

References 33 publications

Application of High-Density Electropulsing to Improve the Performance of Metallic Materials: Mechanisms, Microstructure and Properties

Application of High-Density Electropulsing to Improve the Performance of Metallic Materials: Mechanisms, Microstructure and Properties

Room temperature texturing of austenite/ferrite steel by electropulsing

Electropulsing-induced plastic deformation in an interstitial free steel

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