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Dissimilar micro beam welding of titanium to Nitinol and stainless steel using biocompatible filler materials for medical applications

dc.date.accessioned2023-01-27T15:11:25Z
dc.date.available2023-01-27T15:11:25Z
dc.date.issued2022-11-16
dc.identifierdoi:10.17170/kobra-202301267422
dc.identifier.urihttp://hdl.handle.net/123456789/14389
dc.description.sponsorshipGefördert im Rahmen des Projekts DEALger
dc.language.isoengeng
dc.rightsNamensnennung 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subjectelectron beam weldingeng
dc.subjectdissimilar weldingeng
dc.subjectfiller materialeng
dc.subjectmedical technologyeng
dc.subjectnanoindentationeng
dc.subjectintermetallic compoundseng
dc.subject.ddc600
dc.subject.ddc660
dc.titleDissimilar micro beam welding of titanium to Nitinol and stainless steel using biocompatible filler materials for medical applicationseng
dc.typeAufsatz
dcterms.abstractIn the present investigation, thin sheet geometries of commercially pure titanium (cp, grade 4) are butt-welded to AISI 316L stainless steel as well as Nitinol by means of micro electron beam welding using filler materials. In order to avoid mixing of the base materials, the refractory metals tantalum, niobium and hafnium are applied as intermediate layers. Owing to the biocompatibility of these filler materials, the final products are suitable for medical technology applications. In combination with low energy inputs and precise beam alignments, it is demonstrated that high-quality and crack-free joints can be produced using micro electron beam welding. The welded joints are analysed using nanoindentation to identify critical weld areas, e.g. high concentrations of intermetallic compounds, and to evaluate the compatibility of the base and filler materials. To correlate the hardness mappings with the microstructural evolution of the welds, an exemplary joint is analysed by means of electron backscatter diffraction and energy dispersive X-ray spectroscopy with special emphasis on intermixing and the formation of intermetallic compounds. Based on the generated hardness mappings as well as the ultimate tensile strengths of the joints, it will be concluded which filler material provides the most promising results for the given material combinations.eng
dcterms.accessRightsopen access
dcterms.creatorWiegand, Michael
dcterms.creatorMarks, Linda
dcterms.creatorSommer, Niklas
dcterms.creatorBöhm, Stefan
dc.relation.doidoi:10.1007/s40194-022-01412-3
dc.subject.swdElektronenstrahlschweißenger
dc.subject.swdFüllstoffger
dc.subject.swdTitanger
dc.subject.swdNitinolger
dc.subject.swdEdelstahlger
dc.subject.swdMedizintechnikger
dc.subject.swdNanometerbereichger
dc.subject.swdIntermetallische Verbindungenger
dc.type.versionpublishedVersion
dcterms.source.identifiereissn:1878-6669
dcterms.source.issueIssue 1
dcterms.source.journalWelding in the Worldeng
dcterms.source.pageinfo77-88
dcterms.source.volumeVolume 67
kup.iskupfalse


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