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Formation of Nanoscale Al 2 O 3 Protective Layer by Preheating Treatment for Improving Corrosion Resistance of Dilute Fe-Al Alloys

Affiliation
Key Laboratory of Automobile Materials, Ministry of Education, School of Materials Science and Engineering, Jilin University, Changchun 130022, China
Li, Chenglong;
GND
1311072837
ORCID
0000-0001-8821-4529
Affiliation
Otto Schott Institute of Materials Research, Friedrich Schiller University
Freiberg, Katharina;
Affiliation
Key Laboratory of Automobile Materials, Ministry of Education, School of Materials Science and Engineering, Jilin University, Changchun 130022, China
Tang, Yuntong;
GND
112072807X
Affiliation
Otto Schott Institute of Materials Research, Friedrich Schiller University
Lippmann, Stephanie;
Affiliation
Key Laboratory of Automobile Materials, Ministry of Education, School of Materials Science and Engineering, Jilin University, Changchun 130022, China
Zhu, Yongfu

In this work, an attempt was made to improve the corrosion resistance of dilute Fe-Al alloys (1.0 mass% Al) by preheating treatment at 1073 K in H 2 atmosphere. In comparison with pure Fe and unpreheated Fe-Al alloys, the resistance to oxidation at 673 K in pure O 2 and to electrochemical corrosion in 5 wt.% NaCl solution is significantly improved for preheated Fe-Al alloys. This improvement is attributed to the formation of a 20 nm thin, but dense Al 2 O 3 protective layer on the surface of preheated Fe-Al alloys.

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Editor:
Liu, Ming
Published in:
Materials / Molecular Diversity Preservation International
Vol. 15, No. 22 (11.11.2022)Art.-No.:7978
Volume:
15
No.:
22
Date Issued:
11.11.2022
URN:
urn:nbn:de:gbv:27-dbt-20221207-133325-001
DOI:
10.3390/ma15227978
Language:
English
Type of Resource:
Text
Extent:
9 Seiten
Keywords:
  1. corrosion resistance
    Typ
    Schlagwort
  1. oxidation
    Typ
    Schlagwort
  1. heat treatment
    Typ
    Schlagwort
  1. Fe-Al alloy
    Typ
    Schlagwort
  1. ferroalloy
    Typ
    Schlagwort
DDC subject of DNB:
620 Engineering & allied operations
Hosting institution:
Friedrich-Schiller-Universität Jena, Physikalisch-Astronomische Fakultät
note:
Zweitveröffentlichung

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License Holder: © 2022 by the authors.

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