Published January 2018 | Version v1
Journal article Metadata-only

Corrosion behaviour of a quenched and partitioned medium carbon steel in 3.5 wt.% NaCl solution

Creators

  • 1. Institute of Materials Modification and Modelling, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240 (China)
  • 2. Shanghai Key Laboratory of Materials Laser Processing and Modification, Shanghai Jiao Tong University, Shanghai 200240 (China)
  • 3. Merchant Marine College, Shanghai Maritime University, Shanghai 201306 (China)

Description

Highlights: • Corrosion characteristics of quenched and partitioned steel are determined. • Quenched and partitioned steel specimens are immersed in a NaCl solution. • Retained austenite increases the corrosion potential of a martensitic matrix. • All studied steel samples exhibit similar corrosion variation trends. - Abstract: In this work, the corrosion characteristics of a quenched and partitioned (Q&P) medium carbon steel in a 3.5 wt.% NaCl solution were investigated by various surface analysis techniques and then compared with those of the quenched and tempered steel with the same composition. Both steels exhibited nearly identical corrosion variation trends. However, the Q&P specimen demonstrated a lower corrosion rate. The formation of retained austenite in the carbon-enriched state increases the corrosion potential of the carbon-depleted martensitic matrix and decreases the residual tensile stress on the Q&P surface, thus enhancing its corrosion resistance.

Availability note (English)

Available from http://dx.doi.org/10.1016/j.corsci.2017.10.027

Additional details

Identifiers

DOI
10.1016/j.corsci.2017.10.027;
PII
S0010938X17304298;

Publishing Information

Journal Title
Corrosion Science
Journal Volume
130
Journal Page Range
p. 64-75
ISSN
0010-938X
CODEN
CRRSAA

INIS

Country of Publication
United Kingdom
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
51002249
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
AUSTENITE; CARBON STEELS; COMPARATIVE EVALUATIONS; CORROSION RESISTANCE; MARTENSITIC STEELS; PARTITION; PITTING CORROSION; RAMAN SPECTROSCOPY; SCANNING ELECTRON MICROSCOPY; SODIUM CHLORIDES; STRESSES; SURFACES; X-RAY DIFFRACTION
Descriptors DEC
ALKALI METAL COMPOUNDS; ALLOYS; CARBON ADDITIONS; CHEMICAL REACTIONS; CHLORIDES; CHLORINE COMPOUNDS; COHERENT SCATTERING; CORROSION; DIFFRACTION; ELECTRON MICROSCOPY; EVALUATION; HALIDES; HALOGEN COMPOUNDS; IRON ALLOYS; IRON BASE ALLOYS; LASER SPECTROSCOPY; MICROSCOPY; SCATTERING; SODIUM COMPOUNDS; SODIUM HALIDES; SPECTROSCOPY; STEELS; TRANSITION ELEMENT ALLOYS

Optional Information

Copyright
Copyright (c) 2017 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.