Details
| Original language | English |
|---|---|
| Pages (from-to) | 4351-4359 |
| Number of pages | 9 |
| Journal | Journal of Materials Engineering and Performance |
| Volume | 29 |
| Early online date | 24 Jul 2020 |
| Publication status | Published - Jul 2020 |
Abstract
Deep rolling is an effective mechanical surface treatment method; however, the induced deformation may eventually lead to changes that result in a structure known as a white etching layer (WEL). The WEL possesses a distinct constitution and properties compared with the surrounding bulk material. The presence of the WEL drastically affects the surface integrity of the part and impairs the performance of the metallic components. However, the influence of deep rolling on WEL formation has not been fully clarified. Therefore, the goal of this study was to investigate WEL formation after deep rolling AISI 4140 steel with various microstructures (obtained through four heat treatment routes) and employing distinct rolling pressure and feed values. The results show that larger lattice distortion (resulting from refined martensitic structures) and higher deep rolling feed (increased work hardening) lead to the formation of a thicker WEL. Moreover, the increase in rolling pressure does not affect the WEL within the tested range. Finally, the mechanisms involved in WEL formation are discussed. It is suggested that the shear energy associated with deep rolling and applied along the surface grains leads to WEL formation by grain refinement.
Keywords
- deep rolling, hardness, heat treatment, steel, thermomechanical processing, white etching layer
ASJC Scopus subject areas
- Materials Science(all)
- General Materials Science
- Engineering(all)
- Mechanics of Materials
- Engineering(all)
- Mechanical Engineering
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In: Journal of Materials Engineering and Performance, Vol. 29, 07.2020, p. 4351-4359.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Formation of White Etching Layers by Deep Rolling of AISI 4140 Steel
AU - Souza, Poliana S.
AU - Cangussu, Vinicius M.
AU - Câmara, Marcelo A.
AU - Abrão, Alexandre M.
AU - Denkena, Berend
AU - Breidenstein, Bernd
AU - Meyer, Kolja
N1 - Funding information: This work was supported by the Brazilian–German Collaborative Research Initiative on Manufacturing Technology (CAPES/DFG BRAGECRIM Grant No: 029/14). P.S. Souza is grateful to the staff of the Institute of Materials Science of Leibniz Universität Hannover for their technical support and fruitful discussions. Additional thanks go to Dr. Carlos E.H. Ventura for his fruitful discussions. This work was supported by the Brazilian–German Collaborative Research Initiative on Manufacturing Technology (CAPES/DFG BRAGECRIM Grant No: 029/14). P.S. Souza is grateful to the staff of the Institute of Materials Science of Leibniz Universität Hannover for their technical support and fruitful discussions. Additional thanks go to Dr. Carlos E.H. Ventura for his fruitful discussions.
PY - 2020/7
Y1 - 2020/7
N2 - Deep rolling is an effective mechanical surface treatment method; however, the induced deformation may eventually lead to changes that result in a structure known as a white etching layer (WEL). The WEL possesses a distinct constitution and properties compared with the surrounding bulk material. The presence of the WEL drastically affects the surface integrity of the part and impairs the performance of the metallic components. However, the influence of deep rolling on WEL formation has not been fully clarified. Therefore, the goal of this study was to investigate WEL formation after deep rolling AISI 4140 steel with various microstructures (obtained through four heat treatment routes) and employing distinct rolling pressure and feed values. The results show that larger lattice distortion (resulting from refined martensitic structures) and higher deep rolling feed (increased work hardening) lead to the formation of a thicker WEL. Moreover, the increase in rolling pressure does not affect the WEL within the tested range. Finally, the mechanisms involved in WEL formation are discussed. It is suggested that the shear energy associated with deep rolling and applied along the surface grains leads to WEL formation by grain refinement.
AB - Deep rolling is an effective mechanical surface treatment method; however, the induced deformation may eventually lead to changes that result in a structure known as a white etching layer (WEL). The WEL possesses a distinct constitution and properties compared with the surrounding bulk material. The presence of the WEL drastically affects the surface integrity of the part and impairs the performance of the metallic components. However, the influence of deep rolling on WEL formation has not been fully clarified. Therefore, the goal of this study was to investigate WEL formation after deep rolling AISI 4140 steel with various microstructures (obtained through four heat treatment routes) and employing distinct rolling pressure and feed values. The results show that larger lattice distortion (resulting from refined martensitic structures) and higher deep rolling feed (increased work hardening) lead to the formation of a thicker WEL. Moreover, the increase in rolling pressure does not affect the WEL within the tested range. Finally, the mechanisms involved in WEL formation are discussed. It is suggested that the shear energy associated with deep rolling and applied along the surface grains leads to WEL formation by grain refinement.
KW - deep rolling
KW - hardness
KW - heat treatment
KW - steel
KW - thermomechanical processing
KW - white etching layer
UR - http://www.scopus.com/inward/record.url?scp=85088661922&partnerID=8YFLogxK
U2 - 10.1007/s11665-020-04988-3
DO - 10.1007/s11665-020-04988-3
M3 - Article
AN - SCOPUS:85088661922
VL - 29
SP - 4351
EP - 4359
JO - Journal of Materials Engineering and Performance
JF - Journal of Materials Engineering and Performance
SN - 1059-9495
ER -