High-temperature oxidation behaviour of nanostructure surface layered austenitic stainless steel
Singh, Digvijay ; Cemin, Felipe ; Jimenez, Mawin J.M. ; Antunes, Vinícius ; Alvarez, Fernando ; Orlov, Dmytro LU
; Figueroa, Carlos A.
and Hosmani, Santosh S.
(2022)
In Applied Surface Science
581.
- Abstract
The present study investigates the high-temperature oxidation behaviour of nanostructure surface layered AISI 304L stainless steel. A severely deformed layer of ∼300 μm thickness, consisting of nanoscale grains (∼40 nm size) in the topmost region, is successfully developed using the surface mechanical attrition treatment (SMAT) process. The SMATed layer is substantially stable up to 700 °C; however, the surface hardness is reduced by ∼37% at 800 °C for 25 h oxidation duration. Glow discharge optical emission spectroscopy and X-ray photoelectron spectroscopy analysis revealed the considerable difference in the chemistry and elemental distribution across the oxide scale of SMATed and non-SMATed specimens. Adherent, denser, and thinner... (More)
The present study investigates the high-temperature oxidation behaviour of nanostructure surface layered AISI 304L stainless steel. A severely deformed layer of ∼300 μm thickness, consisting of nanoscale grains (∼40 nm size) in the topmost region, is successfully developed using the surface mechanical attrition treatment (SMAT) process. The SMATed layer is substantially stable up to 700 °C; however, the surface hardness is reduced by ∼37% at 800 °C for 25 h oxidation duration. Glow discharge optical emission spectroscopy and X-ray photoelectron spectroscopy analysis revealed the considerable difference in the chemistry and elemental distribution across the oxide scale of SMATed and non-SMATed specimens. Adherent, denser, and thinner scale, dominated by nanocrystals of Cr- and Mn-rich oxides, is formed on the SMATed steel. However, the Fe-oxide dominated scale containing micro-crystals is found on the non-SMATed specimens, which shows noticeable exfoliation. A high density of grain boundaries and lattice defects in the SMATed layer display admirable reactive diffusion properties of Cr and Mn during oxidation of steel, instigating the formation of a protective oxide scale. The SMATed specimens exhibit multiple zones in the oxide scale: (i) Cr/Mn depleted outer layer, (ii) Cr-/Mn-rich inner layer, and (iii) gradually decreasing Cr/Mn region.
(Less)
- author
- Singh, Digvijay
; Cemin, Felipe
; Jimenez, Mawin J.M.
; Antunes, Vinícius
; Alvarez, Fernando
; Orlov, Dmytro
LU
; Figueroa, Carlos A.
and Hosmani, Santosh S.
- organization
- publishing date
- 2022-04-15
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- AISI 304L, GDOES, Nanostructured surface, Oxidation, SMAT
- in
- Applied Surface Science
- volume
- 581
- article number
- 152437
- publisher
- Elsevier
- external identifiers
-
- scopus:85122634914
- ISSN
- 0169-4332
- DOI
- 10.1016/j.apsusc.2022.152437
- project
- Topological control of microstructures for advanced material engineering
- language
- English
- LU publication?
- yes
- additional info
- Publisher Copyright: © 2022 Elsevier B.V.
- id
- d17698f9-d44e-4b8e-93c9-f1e083fde69f
- date added to LUP
- 2022-02-05 23:26:43
- date last changed
- 2023-10-17 17:43:43
@article{d17698f9-d44e-4b8e-93c9-f1e083fde69f,
abstract = {{<p>The present study investigates the high-temperature oxidation behaviour of nanostructure surface layered AISI 304L stainless steel. A severely deformed layer of ∼300 μm thickness, consisting of nanoscale grains (∼40 nm size) in the topmost region, is successfully developed using the surface mechanical attrition treatment (SMAT) process. The SMATed layer is substantially stable up to 700 °C; however, the surface hardness is reduced by ∼37% at 800 °C for 25 h oxidation duration. Glow discharge optical emission spectroscopy and X-ray photoelectron spectroscopy analysis revealed the considerable difference in the chemistry and elemental distribution across the oxide scale of SMATed and non-SMATed specimens. Adherent, denser, and thinner scale, dominated by nanocrystals of Cr- and Mn-rich oxides, is formed on the SMATed steel. However, the Fe-oxide dominated scale containing micro-crystals is found on the non-SMATed specimens, which shows noticeable exfoliation. A high density of grain boundaries and lattice defects in the SMATed layer display admirable reactive diffusion properties of Cr and Mn during oxidation of steel, instigating the formation of a protective oxide scale. The SMATed specimens exhibit multiple zones in the oxide scale: (i) Cr/Mn depleted outer layer, (ii) Cr-/Mn-rich inner layer, and (iii) gradually decreasing Cr/Mn region.</p>}},
author = {{Singh, Digvijay and Cemin, Felipe and Jimenez, Mawin J.M. and Antunes, Vinícius and Alvarez, Fernando and Orlov, Dmytro and Figueroa, Carlos A. and Hosmani, Santosh S.}},
issn = {{0169-4332}},
keywords = {{AISI 304L; GDOES; Nanostructured surface; Oxidation; SMAT}},
language = {{eng}},
month = {{04}},
publisher = {{Elsevier}},
series = {{Applied Surface Science}},
title = {{High-temperature oxidation behaviour of nanostructure surface layered austenitic stainless steel}},
url = {{http://dx.doi.org/10.1016/j.apsusc.2022.152437}},
doi = {{10.1016/j.apsusc.2022.152437}},
volume = {{581}},
year = {{2022}},
}