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Corrosion resistance of welded joints of X5CrNi18-10 stainless steel

Authorized Users Only
2019
Authors
Jegdić, Bore
Bobić, Biljana
Radojković, Bojana
Alić, Behar
Radovanović, Lidija D.
Article (Published version)
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Abstract
This paper considers the influence of nitrogen in the shielding gas during TIG welding as well as the influence of a welding current level on the resistance to pitting corrosion and intergranular corrosion in welded joints of X5CrNi18-10 stainless steel. Testing of pitting corrosion was carried out using the potentiodynamic method, while intergranular corrosion was tested with the Double-Loop Electrochemical Potentiokinetic Reactivation method. Pitting corrosion resistance of welded joints (the weld metal and the heat affected zone) is higher in the presence of nitrogen in the shielding gas, while integranular corrosion resistance remains unchanged. Pitting corrosion resistance of the heat affected zone in the welded joint formed in nitrogen-free shielding gas is lower than in the base metal, while the weld metal has similar pitting corrosion resistance as the base metal. With an increase in a welding current level, pitting corrosion resistance and resistance to intergranular corrosion... of welded joints decrease. The passivation current density is shown to be a good indicator of pitting corrosion resistance of welded joints. Hardness values of the weld metal and the heat affected zone are slightly lower than the base metal hardness value.

Keywords:
Intergranular corrosion / Nitrogen / Pitting corrosion / Stainless steel / Welding
Source:
Journal of Materials Processing Technology, 2019, 266, 579-587
Publisher:
  • Elsevier
Funding / projects:
  • Investigation and Optimization of the Technological and Functional Performance of the Ventilation Mill in the Thermal Power Plant Kostolac B (RS-34028)
  • Development of the tribological micro/nano two component and hybrid selflubricating composites (RS-35021)

DOI: 10.1016/j.jmatprotec.2018.11.029

ISSN: 0924-0136

WoS: 000456757200053

Scopus: 2-s2.0-85057347749
[ Google Scholar ]
25
20
URI
https://cer.ihtm.bg.ac.rs/handle/123456789/2498
Collections
  • Radovi istraživača / Researchers' publications
Institution/Community
IHTM
TY  - JOUR
AU  - Jegdić, Bore
AU  - Bobić, Biljana
AU  - Radojković, Bojana
AU  - Alić, Behar
AU  - Radovanović, Lidija D.
PY  - 2019
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/2498
AB  - This paper considers the influence of nitrogen in the shielding gas during TIG welding as well as the influence of a welding current level on the resistance to pitting corrosion and intergranular corrosion in welded joints of X5CrNi18-10 stainless steel. Testing of pitting corrosion was carried out using the potentiodynamic method, while intergranular corrosion was tested with the Double-Loop Electrochemical Potentiokinetic Reactivation method. Pitting corrosion resistance of welded joints (the weld metal and the heat affected zone) is higher in the presence of nitrogen in the shielding gas, while integranular corrosion resistance remains unchanged. Pitting corrosion resistance of the heat affected zone in the welded joint formed in nitrogen-free shielding gas is lower than in the base metal, while the weld metal has similar pitting corrosion resistance as the base metal. With an increase in a welding current level, pitting corrosion resistance and resistance to intergranular corrosion of welded joints decrease. The passivation current density is shown to be a good indicator of pitting corrosion resistance of welded joints. Hardness values of the weld metal and the heat affected zone are slightly lower than the base metal hardness value.
PB  - Elsevier
T2  - Journal of Materials Processing Technology
T1  - Corrosion resistance of welded joints of X5CrNi18-10 stainless steel
VL  - 266
SP  - 579
EP  - 587
DO  - 10.1016/j.jmatprotec.2018.11.029
ER  - 
@article{
author = "Jegdić, Bore and Bobić, Biljana and Radojković, Bojana and Alić, Behar and Radovanović, Lidija D.",
year = "2019",
abstract = "This paper considers the influence of nitrogen in the shielding gas during TIG welding as well as the influence of a welding current level on the resistance to pitting corrosion and intergranular corrosion in welded joints of X5CrNi18-10 stainless steel. Testing of pitting corrosion was carried out using the potentiodynamic method, while intergranular corrosion was tested with the Double-Loop Electrochemical Potentiokinetic Reactivation method. Pitting corrosion resistance of welded joints (the weld metal and the heat affected zone) is higher in the presence of nitrogen in the shielding gas, while integranular corrosion resistance remains unchanged. Pitting corrosion resistance of the heat affected zone in the welded joint formed in nitrogen-free shielding gas is lower than in the base metal, while the weld metal has similar pitting corrosion resistance as the base metal. With an increase in a welding current level, pitting corrosion resistance and resistance to intergranular corrosion of welded joints decrease. The passivation current density is shown to be a good indicator of pitting corrosion resistance of welded joints. Hardness values of the weld metal and the heat affected zone are slightly lower than the base metal hardness value.",
publisher = "Elsevier",
journal = "Journal of Materials Processing Technology",
title = "Corrosion resistance of welded joints of X5CrNi18-10 stainless steel",
volume = "266",
pages = "579-587",
doi = "10.1016/j.jmatprotec.2018.11.029"
}
Jegdić, B., Bobić, B., Radojković, B., Alić, B.,& Radovanović, L. D.. (2019). Corrosion resistance of welded joints of X5CrNi18-10 stainless steel. in Journal of Materials Processing Technology
Elsevier., 266, 579-587.
https://doi.org/10.1016/j.jmatprotec.2018.11.029
Jegdić B, Bobić B, Radojković B, Alić B, Radovanović LD. Corrosion resistance of welded joints of X5CrNi18-10 stainless steel. in Journal of Materials Processing Technology. 2019;266:579-587.
doi:10.1016/j.jmatprotec.2018.11.029 .
Jegdić, Bore, Bobić, Biljana, Radojković, Bojana, Alić, Behar, Radovanović, Lidija D., "Corrosion resistance of welded joints of X5CrNi18-10 stainless steel" in Journal of Materials Processing Technology, 266 (2019):579-587,
https://doi.org/10.1016/j.jmatprotec.2018.11.029 . .

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