Heat management and tensile strength of 3 mm mixed and matched connections of butt joints of S355J2+N, S460MC and S700MC
Author(s): |
Stefan Eichler
(TU‐Ilmenau Ilmenau Germany)
Mareike von Arnim (University of Stuttgart, Institute of Structural Design Stuttgart Germany) Oliver Brätz (Fraunhofer IGP Rostock Germany) Jörg Hildebrand (TU‐Ilmenau Ilmenau Germany) Andreas Gericke (Fraunhofer IGP Rostock Germany) Jean Pierre Bergmann (TU‐Ilmenau Ilmenau Germany) Ulrike Kuhlmann (University of Stuttgart, Institute of Structural Design Stuttgart Germany) Knuth‐Michael Henkel (Fraunhofer IGP Rostock Germany) |
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Medium: | journal article |
Language(s): | English |
Published in: | ce/papers, September 2023, n. 3-4, v. 6 |
Page(s): | 1476-1482 |
DOI: | 10.1002/cepa.2265 |
Abstract: |
High‐strength structural steels are beneficial in terms of the sustainability of constructions due to the possible reduction of weight and overall material needs. Nevertheless, high‐strength steels have a smaller processing parameter range in regarding the specific heat input and resulting cooling rate. Especially the cooling time t8/5 characterizing the time span to cool down from 800 to 500 °C is an important indicator. Single layer butt‐welded gas metal arc welding (GMAW) connections of 3 mm plates between normal strength (S355J2+N, S460MC) and high‐strength steels (S700MC) as well as matched connections (S460MC, S700MC) are carried out. Hereby, the influence of the energy input, melting rate, joint preparation, filler metal (matching and undermatching) and backing methods are observed. Spatially resolved IR‐thermal observation shows variations within the welds of up to 50 % in the cooling time |
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data sheet - Reference-ID
10767160 - Published on:
17/04/2024 - Last updated on:
17/04/2024