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Impact of burnishing on surface integrity of AISI 316Ti stainless steel

Sirtuli, Larissa Juliana LU orcid ; Stergiopoulou, Xenia LU ; Norgren, Susanne LU and Bushlya, Volodymyr LU (2026) In Procedia CIRP 144. p.126-131
Abstract
Burnishing has shown potential to improve the corrosion, fatigue and wear resistance of stainless steels. In this study, the surface integrity induced by burnishing in AISI 316Ti was characterized using a multi-technique approach based on Electron Channeling Contrast Imaging (ECCI), Electron Backscatter Diffraction (EBSD) and nanoindentation. Slide burnishing with a diamond tool was carried out under forces ranging from 100 to 300 N, generating an N4-quality surface finish. A burnishing force of 100 N did not significantly affect near-surface hardness compared to the machined (finish-turned) surface whereas it substantially increased the depth of the work-hardened layer, from 40 µm in the machined condition to 150 µm, suggesting... (More)
Burnishing has shown potential to improve the corrosion, fatigue and wear resistance of stainless steels. In this study, the surface integrity induced by burnishing in AISI 316Ti was characterized using a multi-technique approach based on Electron Channeling Contrast Imaging (ECCI), Electron Backscatter Diffraction (EBSD) and nanoindentation. Slide burnishing with a diamond tool was carried out under forces ranging from 100 to 300 N, generating an N4-quality surface finish. A burnishing force of 100 N did not significantly affect near-surface hardness compared to the machined (finish-turned) surface whereas it substantially increased the depth of the work-hardened layer, from 40 µm in the machined condition to 150 µm, suggesting substantial subsurface deformation. A maximum hardness of 5.0 ± 0.1 GPa was observed at both 225 and 300 N, indicating work hardening saturation corresponding to a degree of work hardening of 51.5%. At the highest force, 300 N, more severe grain strain and a deeper strain-affected zone were observed. The near-surface generated by burnishing consists of a thin mechanically induced fine-grained layer followed by a region of swept grains. Twinning was identified as the primary mechanism of plastic deformation. No evidence of phase transformation was detected. Electrochemical tests in 3.5 wt.% NaCl indicated that burnishing at 300 N maintains pitting resistance and slightly improves corrosion behavior compared to the machined surface. (Less)
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author
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organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Burnishing, Surface integrity, ECCI, EBSD, Stainless steel
in
Procedia CIRP
volume
144
pages
126 - 131
publisher
Elsevier
ISSN
2212-8271
DOI
10.1016/j.procir.2026.02.048
language
English
LU publication?
yes
id
40a141d8-459d-4a38-9e91-eb8876a3a623
date added to LUP
2026-08-13 09:29:27
date last changed
2026-08-31 19:59:30
@article{40a141d8-459d-4a38-9e91-eb8876a3a623,
  abstract     = {{Burnishing has shown potential to improve the corrosion, fatigue and wear resistance of stainless steels. In this study, the surface integrity induced by burnishing in AISI 316Ti was characterized using a multi-technique approach based on Electron Channeling Contrast Imaging (ECCI), Electron Backscatter Diffraction (EBSD) and nanoindentation. Slide burnishing with a diamond tool was carried out under forces ranging from 100 to 300 N, generating an N4-quality surface finish. A burnishing force of 100 N did not significantly affect near-surface hardness compared to the machined (finish-turned) surface whereas it substantially increased the depth of the work-hardened layer, from 40 µm in the machined condition to 150 µm, suggesting substantial subsurface deformation. A maximum hardness of 5.0 ± 0.1 GPa was observed at both 225 and 300 N, indicating work hardening saturation corresponding to a degree of work hardening of 51.5%. At the highest force, 300 N, more severe grain strain and a deeper strain-affected zone were observed. The near-surface generated by burnishing consists of a thin mechanically induced fine-grained layer followed by a region of swept grains. Twinning was identified as the primary mechanism of plastic deformation. No evidence of phase transformation was detected. Electrochemical tests in 3.5 wt.% NaCl indicated that burnishing at 300 N maintains pitting resistance and slightly improves corrosion behavior compared to the machined surface.}},
  author       = {{Sirtuli, Larissa Juliana and Stergiopoulou, Xenia and Norgren, Susanne and Bushlya, Volodymyr}},
  issn         = {{2212-8271}},
  keywords     = {{Burnishing; Surface integrity; ECCI; EBSD; Stainless steel}},
  language     = {{eng}},
  pages        = {{126--131}},
  publisher    = {{Elsevier}},
  series       = {{Procedia CIRP}},
  title        = {{Impact of burnishing on surface integrity of AISI 316Ti stainless steel}},
  url          = {{http://dx.doi.org/10.1016/j.procir.2026.02.048}},
  doi          = {{10.1016/j.procir.2026.02.048}},
  volume       = {{144}},
  year         = {{2026}},
}