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Article: A preliminary study of cladding steel with NiTi by microwave-assisted brazing

TitleA preliminary study of cladding steel with NiTi by microwave-assisted brazing
Authors
KeywordsAisi 316L Stainless Steel
Brazing
Cavitation Erosion
Corrosion
Microwave-Induced Plasma
Niti
Issue Date2005
PublisherElsevier SA. The Journal's web site is located at http://www.elsevier.com/locate/msea
Citation
Materials Science And Engineering A, 2005, v. 407 n. 1-2, p. 273-281 How to Cite?
AbstractNickel titanium (NiTi) plate of 1.2 mm thickness was successfully clad on AISI 316L stainless steel substrate by a microwave-assisted brazing process. Brazing was conducted in a multimode microwave oven in air using a copper-based brazing material in tape form. The brazing material was melted in a few minutes by microwave-induced plasma initiated by conducting wires surrounding the brazing assembly. Metallographic study by scanning-electron microscopy (SEM) and compositional analysis by energy-dispersive spectroscopy (EDS) of the brazed joint revealed metallurgical bonding formed via inter-diffusion between the brazing filler and the adjacent materials. A shear bonding strength in the range of 100-150 MPa was recorded in shear tests of the brazed joint. SEM and X-ray diffractometry (XRD) analysis for the surface of as-received NiTi plate and NiTi cladding showed similar microstructure and phase composition. Nanoindentation tests also indicated that the superelastic properties of NiTi were essentially retained. The cavitation erosion resistance of the NiTi cladding was essentially the same as that of as-received NiTi plate, and higher than that obtained in laser or TIG (tungsten-inert gas) surfacing. The high resistance could be attributed to avoidance of dilution and defect formation in the NiTi clad since the cladding did not undergo melting and solidification in the brazing process. Electrochemical tests also recorded similar corrosion resistance in both as-received NiTi and NiTi cladding. Thus, the present study indicates that microwave-assisted brazing is a simple, economical, and feasible process for cladding NiTi on 316L stainless steel for enhancing cavitation erosion resistance. © 2005 Elsevier B.V. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/170076
ISSN
2015 Impact Factor: 2.647
2015 SCImago Journal Rankings: 1.803
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorChiu, KYen_US
dc.contributor.authorCheng, FTen_US
dc.contributor.authorMan, HCen_US
dc.date.accessioned2012-10-30T06:05:10Z-
dc.date.available2012-10-30T06:05:10Z-
dc.date.issued2005en_US
dc.identifier.citationMaterials Science And Engineering A, 2005, v. 407 n. 1-2, p. 273-281en_US
dc.identifier.issn0921-5093en_US
dc.identifier.urihttp://hdl.handle.net/10722/170076-
dc.description.abstractNickel titanium (NiTi) plate of 1.2 mm thickness was successfully clad on AISI 316L stainless steel substrate by a microwave-assisted brazing process. Brazing was conducted in a multimode microwave oven in air using a copper-based brazing material in tape form. The brazing material was melted in a few minutes by microwave-induced plasma initiated by conducting wires surrounding the brazing assembly. Metallographic study by scanning-electron microscopy (SEM) and compositional analysis by energy-dispersive spectroscopy (EDS) of the brazed joint revealed metallurgical bonding formed via inter-diffusion between the brazing filler and the adjacent materials. A shear bonding strength in the range of 100-150 MPa was recorded in shear tests of the brazed joint. SEM and X-ray diffractometry (XRD) analysis for the surface of as-received NiTi plate and NiTi cladding showed similar microstructure and phase composition. Nanoindentation tests also indicated that the superelastic properties of NiTi were essentially retained. The cavitation erosion resistance of the NiTi cladding was essentially the same as that of as-received NiTi plate, and higher than that obtained in laser or TIG (tungsten-inert gas) surfacing. The high resistance could be attributed to avoidance of dilution and defect formation in the NiTi clad since the cladding did not undergo melting and solidification in the brazing process. Electrochemical tests also recorded similar corrosion resistance in both as-received NiTi and NiTi cladding. Thus, the present study indicates that microwave-assisted brazing is a simple, economical, and feasible process for cladding NiTi on 316L stainless steel for enhancing cavitation erosion resistance. © 2005 Elsevier B.V. All rights reserved.en_US
dc.languageengen_US
dc.publisherElsevier SA. The Journal's web site is located at http://www.elsevier.com/locate/mseaen_US
dc.relation.ispartofMaterials Science and Engineering Aen_US
dc.subjectAisi 316L Stainless Steelen_US
dc.subjectBrazingen_US
dc.subjectCavitation Erosionen_US
dc.subjectCorrosionen_US
dc.subjectMicrowave-Induced Plasmaen_US
dc.subjectNitien_US
dc.titleA preliminary study of cladding steel with NiTi by microwave-assisted brazingen_US
dc.typeArticleen_US
dc.identifier.emailChiu, KY:pkychiu@hkucc.hku.hken_US
dc.identifier.authorityChiu, KY=rp00379en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1016/j.msea.2005.07.013en_US
dc.identifier.scopuseid_2-s2.0-27244460133en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-27244460133&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume407en_US
dc.identifier.issue1-2en_US
dc.identifier.spage273en_US
dc.identifier.epage281en_US
dc.identifier.isiWOS:000233050000036-
dc.publisher.placeSwitzerlanden_US
dc.identifier.scopusauthoridChiu, KY=7202988127en_US
dc.identifier.scopusauthoridCheng, FT=7202811219en_US
dc.identifier.scopusauthoridMan, HC=7102326766en_US

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