Investigation of the LME Susceptibility of Dual Phase Steel with Different Zinc Coatings

dc.contributor.authorEl-Sari, Bassel
dc.contributor.authorBiegler, Max
dc.contributor.authorRethmeier, Michael
dc.date.accessioned2023-06-27T11:57:47Z
dc.date.available2023-06-27T11:57:47Z
dc.date.issued2023-5-5
dc.description.abstractThe application of anti-corrosion coated, high-strength steels in the automotive industry has increased in recent years. In combination with various zinc-based surface coatings, liquid metal embrittlement cracking can be observed in some of these materials. A high-quality, crack-free spot-welded joint is essential to realize the lightweight potential of the materials. In this work, the LME susceptibility of different coatings, which will be determined by the crack length and the occurrence rate, will be investigated using a welding under external load setup. The uncoated specimens did not show any LME. EG, GI and GA showed significantly less LME than ZM coatings. The latter coatings showed much larger crack lengths than the EG, GI and GA coatings. Furthermore, two mechanisms regarding the LME occurrence rate were observed: the occurrence of LME in zinc–magnesium coatings was theorized to be driven by the material properties of the coatings, whereas the occurrence of LME at EG, GI and GA samples was forced mainly by the application of the external tensile load. In the experimental setup of this work, the materials were exposed to unusually high mechanical loads (up to 80% of their yield strength) to evoke LME cracks.en
dc.identifier.eissn2075-4701
dc.identifier.urihttps://depositonce.tu-berlin.de/handle/11303/19446
dc.identifier.urihttps://doi.org/10.14279/depositonce-18243
dc.language.isoen
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subject.ddc500 Naturwissenschaften und Mathematik::530 Physik::530 Physik
dc.subject.otherresistance spot weldingen
dc.subject.otherRSWen
dc.subject.otheradvanced high-strength steelsen
dc.subject.otherAHSSen
dc.subject.otherliquid metal embrittlementen
dc.subject.otherLMEen
dc.titleInvestigation of the LME Susceptibility of Dual Phase Steel with Different Zinc Coatings
dc.typeArticle
dc.type.versionpublishedVersion
dcterms.bibliographicCitation.articlenumber890
dcterms.bibliographicCitation.doi10.3390/met13050890
dcterms.bibliographicCitation.issue5
dcterms.bibliographicCitation.journaltitleMetals
dcterms.bibliographicCitation.originalpublishernameMDPI
dcterms.bibliographicCitation.originalpublisherplaceBasel
dcterms.bibliographicCitation.volume13
dcterms.rightsHolder.referenceCreative-Commons-Lizenz
tub.accessrights.dnbfree
tub.affiliationFak. 5 Verkehrs- und Maschinensysteme::Inst. Werkzeugmaschinen und Fabrikbetrieb::FG Fügetechnik
tub.publisher.universityorinstitutionTechnische Universität Berlin

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