View in EDS HTML Full Text PDF Full Text

The Role of Current Density Distribution on Local Hardening of 20GL Steel During Electrolytic Plasma Processing.

Saved in:
Bibliographic Details
Title: The Role of Current Density Distribution on Local Hardening of 20GL Steel During Electrolytic Plasma Processing.
Authors: Kurmangaliyev, Rinat1,2 (AUTHOR) rinat_real@rambler.ru, Rakhadilov, Bauyrzhan2,3 (AUTHOR), Kadyrbolat, Nurlat1,2,3 (AUTHOR), Kussainov, Rinat1,2 (AUTHOR), Maulit, Almasbek2,3 (AUTHOR), Mukhametov, Yeldos1,3 (AUTHOR)
Source: Materials (1996-1944). Nov2025, Vol. 18 Issue 22, p5073. 15p.
Subjects: Current distribution, Surface hardening, Heat flux, Steel corrosion, Plasma materials processing, Electric field effects, Steel
Abstract: This study investigates the influence of current density distribution on the hardening behavior of 20GL cast steel during electrolytic plasma processing (EPP). Experimental and numerical methods were combined to establish the relationship between discharge dynamics, heat flux, microstructural transformation. Electrolytic plasma hardening was carried out at cathodic voltages of 150 V and 250 V in a 20% Na2CO3 solution. The transient evolution of current density was analyzed using a 3D COMSOL Multiphysics model incorporating a vapor–gas shell (VGS) represented as a distributed impedance layer with realistic conductivity and permittivity. High-speed video confirmed that microdischarges preferentially initiate at sample corners, where modeling also predicts local current concentration and heat flux up to 12 MW/m2. Experimental current density values (3–4 × 104 A/m2) showed good agreement with the simulations. Microhardness tests revealed that increasing voltage from 150 V to 250 V increases the thickness of the hardened layer (from ~250 µm to ~600 µm) and raises surface hardness (up to 750 HV), while polarization tests showed a 40% reduction in corrosion rate. The results highlight that current density distribution governs the non-uniformity of thermal effects and surface strengthening during EPP, emphasizing the importance of electrode alignment and VGS stability for uniform hardening. [ABSTRACT FROM AUTHOR]
Copyright of Materials (1996-1944) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
Full text is not displayed to guests.
FullText Links:
  – Type: pdflink
Text:
  Availability: 1
Header DbId: egs
DbLabel: Engineering Source
An: 189675733
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
IllustrationInfo
Items – Name: Title
  Label: Title
  Group: Ti
  Data: The Role of Current Density Distribution on Local Hardening of 20GL Steel During Electrolytic Plasma Processing.
– Name: Author
  Label: Authors
  Group: Au
  Data: <searchLink fieldCode="AR" term="%22Kurmangaliyev%2C+Rinat%22">Kurmangaliyev, Rinat</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> rinat_real@rambler.ru</i><br /><searchLink fieldCode="AR" term="%22Rakhadilov%2C+Bauyrzhan%22">Rakhadilov, Bauyrzhan</searchLink><relatesTo>2,3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Kadyrbolat%2C+Nurlat%22">Kadyrbolat, Nurlat</searchLink><relatesTo>1,2,3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Kussainov%2C+Rinat%22">Kussainov, Rinat</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Maulit%2C+Almasbek%22">Maulit, Almasbek</searchLink><relatesTo>2,3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Mukhametov%2C+Yeldos%22">Mukhametov, Yeldos</searchLink><relatesTo>1,3</relatesTo> (AUTHOR)
– Name: TitleSource
  Label: Source
  Group: Src
  Data: <searchLink fieldCode="JN" term="%22Materials+%281996-1944%29%22">Materials (1996-1944)</searchLink>. Nov2025, Vol. 18 Issue 22, p5073. 15p.
– Name: Subject
  Label: Subjects
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22Current+distribution%22">Current distribution</searchLink><br /><searchLink fieldCode="DE" term="%22Surface+hardening%22">Surface hardening</searchLink><br /><searchLink fieldCode="DE" term="%22Heat+flux%22">Heat flux</searchLink><br /><searchLink fieldCode="DE" term="%22Steel+corrosion%22">Steel corrosion</searchLink><br /><searchLink fieldCode="DE" term="%22Plasma+materials+processing%22">Plasma materials processing</searchLink><br /><searchLink fieldCode="DE" term="%22Electric+field+effects%22">Electric field effects</searchLink><br /><searchLink fieldCode="DE" term="%22Steel%22">Steel</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: This study investigates the influence of current density distribution on the hardening behavior of 20GL cast steel during electrolytic plasma processing (EPP). Experimental and numerical methods were combined to establish the relationship between discharge dynamics, heat flux, microstructural transformation. Electrolytic plasma hardening was carried out at cathodic voltages of 150 V and 250 V in a 20% Na2CO3 solution. The transient evolution of current density was analyzed using a 3D COMSOL Multiphysics model incorporating a vapor–gas shell (VGS) represented as a distributed impedance layer with realistic conductivity and permittivity. High-speed video confirmed that microdischarges preferentially initiate at sample corners, where modeling also predicts local current concentration and heat flux up to 12 MW/m2. Experimental current density values (3–4 × 104 A/m2) showed good agreement with the simulations. Microhardness tests revealed that increasing voltage from 150 V to 250 V increases the thickness of the hardened layer (from ~250 µm to ~600 µm) and raises surface hardness (up to 750 HV), while polarization tests showed a 40% reduction in corrosion rate. The results highlight that current density distribution governs the non-uniformity of thermal effects and surface strengthening during EPP, emphasizing the importance of electrode alignment and VGS stability for uniform hardening. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Materials (1996-1944) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=egs&AN=189675733
RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.3390/ma18225073
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 15
        StartPage: 5073
    Subjects:
      – SubjectFull: Current distribution
        Type: general
      – SubjectFull: Surface hardening
        Type: general
      – SubjectFull: Heat flux
        Type: general
      – SubjectFull: Steel corrosion
        Type: general
      – SubjectFull: Plasma materials processing
        Type: general
      – SubjectFull: Electric field effects
        Type: general
      – SubjectFull: Steel
        Type: general
    Titles:
      – TitleFull: The Role of Current Density Distribution on Local Hardening of 20GL Steel During Electrolytic Plasma Processing.
        Type: main
  BibRelationships:
    HasContributorRelationships:
      – PersonEntity:
          Name:
            NameFull: Kurmangaliyev, Rinat
      – PersonEntity:
          Name:
            NameFull: Rakhadilov, Bauyrzhan
      – PersonEntity:
          Name:
            NameFull: Kadyrbolat, Nurlat
      – PersonEntity:
          Name:
            NameFull: Kussainov, Rinat
      – PersonEntity:
          Name:
            NameFull: Maulit, Almasbek
      – PersonEntity:
          Name:
            NameFull: Mukhametov, Yeldos
    IsPartOfRelationships:
      – BibEntity:
          Dates:
            – D: 15
              M: 11
              Text: Nov2025
              Type: published
              Y: 2025
          Identifiers:
            – Type: issn-print
              Value: 19961944
          Numbering:
            – Type: volume
              Value: 18
            – Type: issue
              Value: 22
          Titles:
            – TitleFull: Materials (1996-1944)
              Type: main
ResultId 1