Induction heating as practical preheating and post weld heat treatment to improve the quality in underwater wet welding of fine grain structural steels with high carbon equivalents

Publikation: Beitrag in nicht-wissenschaftlicher/populärwissenschaftlicher Zeitschrift/ZeitungBeitrag in Publikumszeitung/-zeitschriftTransfer

Autoren

  • Jan Klett
  • Oliver Brätz
  • Knuth Michael Henkel
  • Thomas Hassel

Organisationseinheiten

Externe Organisationen

  • Fraunhofer-Institut für Großstrukturen in der Produktionstechnik IGP
Forschungs-netzwerk anzeigen

Details

OriginalspracheEnglisch
Seiten228-234
Seitenumfang7
Band20
Ausgabenummer3
FachzeitschriftWelding and Cutting
PublikationsstatusVeröffentlicht - 2021

Abstract

In this research project medium-frequency induction technology was used for preheating and post-weld heat treatment in underwater wet welding. After the induction heating was successfully characterised, both a reduction in the diffusible hydrogen content and a decrease in hardness in the heat-affected zone was demonstrated for wet welding application. In addition, safety issues relating to the use of induction technology in wet underwater welding were addressed for the first time. Induction preheating and post-weld heat treatment was successfully applied by divers. A T-joint of steel grade S460N with a carbon equivalent of 0.51% and thus causing a high susceptibility to hydrogen-assisted cracking, was successfully wet SMAW welded without cracks.

ASJC Scopus Sachgebiete

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Induction heating as practical preheating and post weld heat treatment to improve the quality in underwater wet welding of fine grain structural steels with high carbon equivalents. / Klett, Jan; Brätz, Oliver; Henkel, Knuth Michael et al.
in: Welding and Cutting, Jahrgang 20, Nr. 3, 2021, S. 228-234.

Publikation: Beitrag in nicht-wissenschaftlicher/populärwissenschaftlicher Zeitschrift/ZeitungBeitrag in Publikumszeitung/-zeitschriftTransfer

Klett, Jan ; Brätz, Oliver ; Henkel, Knuth Michael et al. / Induction heating as practical preheating and post weld heat treatment to improve the quality in underwater wet welding of fine grain structural steels with high carbon equivalents. in: Welding and Cutting. 2021 ; Jahrgang 20, Nr. 3. S. 228-234.
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abstract = "In this research project medium-frequency induction technology was used for preheating and post-weld heat treatment in underwater wet welding. After the induction heating was successfully characterised, both a reduction in the diffusible hydrogen content and a decrease in hardness in the heat-affected zone was demonstrated for wet welding application. In addition, safety issues relating to the use of induction technology in wet underwater welding were addressed for the first time. Induction preheating and post-weld heat treatment was successfully applied by divers. A T-joint of steel grade S460N with a carbon equivalent of 0.51% and thus causing a high susceptibility to hydrogen-assisted cracking, was successfully wet SMAW welded without cracks.",
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T1 - Induction heating as practical preheating and post weld heat treatment to improve the quality in underwater wet welding of fine grain structural steels with high carbon equivalents

AU - Klett, Jan

AU - Brätz, Oliver

AU - Henkel, Knuth Michael

AU - Hassel, Thomas

PY - 2021

Y1 - 2021

N2 - In this research project medium-frequency induction technology was used for preheating and post-weld heat treatment in underwater wet welding. After the induction heating was successfully characterised, both a reduction in the diffusible hydrogen content and a decrease in hardness in the heat-affected zone was demonstrated for wet welding application. In addition, safety issues relating to the use of induction technology in wet underwater welding were addressed for the first time. Induction preheating and post-weld heat treatment was successfully applied by divers. A T-joint of steel grade S460N with a carbon equivalent of 0.51% and thus causing a high susceptibility to hydrogen-assisted cracking, was successfully wet SMAW welded without cracks.

AB - In this research project medium-frequency induction technology was used for preheating and post-weld heat treatment in underwater wet welding. After the induction heating was successfully characterised, both a reduction in the diffusible hydrogen content and a decrease in hardness in the heat-affected zone was demonstrated for wet welding application. In addition, safety issues relating to the use of induction technology in wet underwater welding were addressed for the first time. Induction preheating and post-weld heat treatment was successfully applied by divers. A T-joint of steel grade S460N with a carbon equivalent of 0.51% and thus causing a high susceptibility to hydrogen-assisted cracking, was successfully wet SMAW welded without cracks.

KW - fine grain construction steel

KW - hydrogen assisted cracking

KW - induction heating

KW - underwater technology

KW - wet welding

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M3 - Contribution in non-scientific journal

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JO - Welding and Cutting

JF - Welding and Cutting

SN - 1612-3433

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