Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Shot peening effect on 904L welds corrosion resistance
https://orcid.org/0000-0002-7234-8458
Abstract Here we investigated the effect of shot peening on the corrosion resistance of 904L austenitic stainless steel joints made by CO2 laser beam and GTAW welding. Corrosion tests on the fusion zone in welds made by each of these welding methods were performed on shot peened and non-peened specimens. The samples were placed in a salt chamber and inspected after 24, 48, 72, 120, 240, 480, 720 and 1000h. Pitting corrosion on non-peened welds made by GTAW welding was visible in the heat-affected zone from the face of the weld and reached a depth of 40μm. Shot peening of welded joints decreased corrosion by 75%. In the case of shot peened welds made by laser beam welding, pitting corrosion had not occurred after 1000h of salt mist exposure.
Graphical abstract Display Omitted
Highlights 904L (SS) is resistant to 5% NaCl salt spray in the 34.2÷35.7°C temperature. The shot peening resulted in inhibition of corrosion processes. In the laser welded samples branched NaClNi crystals occurred. In the GTAW welded joints not peened, corrosion occurred from the face in the HAZ.
Shot peening effect on 904L welds corrosion resistance
https://orcid.org/0000-0002-7234-8458
Abstract Here we investigated the effect of shot peening on the corrosion resistance of 904L austenitic stainless steel joints made by CO2 laser beam and GTAW welding. Corrosion tests on the fusion zone in welds made by each of these welding methods were performed on shot peened and non-peened specimens. The samples were placed in a salt chamber and inspected after 24, 48, 72, 120, 240, 480, 720 and 1000h. Pitting corrosion on non-peened welds made by GTAW welding was visible in the heat-affected zone from the face of the weld and reached a depth of 40μm. Shot peening of welded joints decreased corrosion by 75%. In the case of shot peened welds made by laser beam welding, pitting corrosion had not occurred after 1000h of salt mist exposure.
Graphical abstract Display Omitted
Highlights 904L (SS) is resistant to 5% NaCl salt spray in the 34.2÷35.7°C temperature. The shot peening resulted in inhibition of corrosion processes. In the laser welded samples branched NaClNi crystals occurred. In the GTAW welded joints not peened, corrosion occurred from the face in the HAZ.
Shot peening effect on 904L welds corrosion resistance
https://orcid.org/0000-0002-7234-8458
Abstract Here we investigated the effect of shot peening on the corrosion resistance of 904L austenitic stainless steel joints made by CO2 laser beam and GTAW welding. Corrosion tests on the fusion zone in welds made by each of these welding methods were performed on shot peened and non-peened specimens. The samples were placed in a salt chamber and inspected after 24, 48, 72, 120, 240, 480, 720 and 1000h. Pitting corrosion on non-peened welds made by GTAW welding was visible in the heat-affected zone from the face of the weld and reached a depth of 40μm. Shot peening of welded joints decreased corrosion by 75%. In the case of shot peened welds made by laser beam welding, pitting corrosion had not occurred after 1000h of salt mist exposure.
Graphical abstract Display Omitted
Highlights 904L (SS) is resistant to 5% NaCl salt spray in the 34.2÷35.7°C temperature. The shot peening resulted in inhibition of corrosion processes. In the laser welded samples branched NaClNi crystals occurred. In the GTAW welded joints not peened, corrosion occurred from the face in the HAZ.
Shot peening effect on 904L welds corrosion resistance
Nasiłowska, Barbara (Autor:in) / Bogdanowicz, Zdzisław (Autor:in) / Wojucki, Michał (Autor:in)
Journal of Constructional Steel Research ; 115 ; 276-282
28.08.2015
7 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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