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Full Record Details
Persistent URL
http://purl.org/net/epubs/work/45430770
Record Status
Checked
Record Id
45430770
Title
Influence of microstructure and manganese sulfides on corrosion resistance of selective laser melted 17-4 PH stainless steel in acidic chloride medium
Contributors
M Alnajjar
,
F Christien
,
V Barnier
,
C Bosch
,
K Wolski
,
AD Fortes (STFC Rutherford Appleton Lab.)
,
M Telling
Abstract
The corrosion resistance of 17-4PH stainless steel obtained by Selective Laser Melting was investigated. It was found that the as-built SLM-ed steel was entirely ferritic, not martensitic as expected. Re-austenitized SLM-ed steel recovered the martensitic microstructure. The two SLM-ed steels (as-built and re-austenitized) had the same general corrosion resistance which was correlated with their similar chemical composition. The martensitic re-austenitized SLM-ed steel had superior general corrosion behavior than the wrought martensitic steel. This was due to the nearly absence of MnS inclusions in the re-austenitized SLM-ed steel, while their presence in the wrought steel destabilized the passive film.
Organisation
ISIS
,
ISIS-HRPD
,
STFC
Keywords
Funding Information
Institut CARNOT M.I.N.E.S
;
LABEX MANUTECH-SISE
(ANR-10-LABX-0075)
Related Research Object(s):
Licence Information:
Language
English (EN)
Type
Details
URI(s)
Local file(s)
Year
Journal Article
Corros Sci
168 (2020): 108585.
doi:10.1016/j.corsci.2020.108585
2020
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