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Article: Effect of electron beam welding on fracture behaviour of thick TC4-DT alloy

TitleEffect of electron beam welding on fracture behaviour of thick TC4-DT alloy
Authors
KeywordsDamage Tolerant Ti6al4v Alloy
Electron Beam Welding
Fracture Toughness
Issue Date2012
PublisherManey Publishing. The Journal's web site is located at http://www.maney.co.uk/search?fwaction=show&fwid=213
Citation
Science And Technology Of Welding And Joining, 2012, v. 17 n. 4, p. 277-281 How to Cite?
AbstractFracture toughness of a damage tolerant Ti6Al4V (TC4-DT) alloy and its electron beam welded joint was investigated using compact tension specimens. Moreover tensile test microhardness test and microstructure examination were carried out. The result indicates that the weld metal is strength overmatching. The tensile strength and microhardness of the weld metal are higher than those of the base metal but the ductility and the energy absorbed before fracture are lower. In addition the fracture toughness K 1c of the base metal is relatively high. The fracture toughness of the weld metal decreases compared with the base metal. It is expected that the toughness reduction of the weld metal is mainly related to the as solidified coarse β columnar grain structure containing martensite in comparison with the bimodal structure of the base metal. Moreover fractographic observation shows that the fracture mode of both weld and base metals is found to be ductile. © 2012 Institute of Materials, Minerals and Mining.
Persistent Identifierhttp://hdl.handle.net/10722/168614
ISSN
2015 Impact Factor: 1.659
2015 SCImago Journal Rankings: 1.333
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorLu, Wen_US
dc.contributor.authorLei, YPen_US
dc.contributor.authorLi, XYen_US
dc.contributor.authorShi, YWen_US
dc.date.accessioned2012-10-08T03:21:39Z-
dc.date.available2012-10-08T03:21:39Z-
dc.date.issued2012en_US
dc.identifier.citationScience And Technology Of Welding And Joining, 2012, v. 17 n. 4, p. 277-281en_US
dc.identifier.issn1362-1718en_US
dc.identifier.urihttp://hdl.handle.net/10722/168614-
dc.description.abstractFracture toughness of a damage tolerant Ti6Al4V (TC4-DT) alloy and its electron beam welded joint was investigated using compact tension specimens. Moreover tensile test microhardness test and microstructure examination were carried out. The result indicates that the weld metal is strength overmatching. The tensile strength and microhardness of the weld metal are higher than those of the base metal but the ductility and the energy absorbed before fracture are lower. In addition the fracture toughness K 1c of the base metal is relatively high. The fracture toughness of the weld metal decreases compared with the base metal. It is expected that the toughness reduction of the weld metal is mainly related to the as solidified coarse β columnar grain structure containing martensite in comparison with the bimodal structure of the base metal. Moreover fractographic observation shows that the fracture mode of both weld and base metals is found to be ductile. © 2012 Institute of Materials, Minerals and Mining.en_US
dc.languageengen_US
dc.publisherManey Publishing. The Journal's web site is located at http://www.maney.co.uk/search?fwaction=show&fwid=213en_US
dc.relation.ispartofScience and Technology of Welding and Joiningen_US
dc.subjectDamage Tolerant Ti6al4v Alloyen_US
dc.subjectElectron Beam Weldingen_US
dc.subjectFracture Toughnessen_US
dc.titleEffect of electron beam welding on fracture behaviour of thick TC4-DT alloyen_US
dc.typeArticleen_US
dc.identifier.emailLu, W:luwei@hku.hken_US
dc.identifier.authorityLu, W=rp00754en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1179/1362171812Y.0000000004en_US
dc.identifier.scopuseid_2-s2.0-84859151886en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-84859151886&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume17en_US
dc.identifier.issue4en_US
dc.identifier.spage277en_US
dc.identifier.epage281en_US
dc.identifier.isiWOS:000302545100004-
dc.publisher.placeUnited Kingdomen_US
dc.identifier.scopusauthoridLu, W=27868087600en_US
dc.identifier.scopusauthoridLei, YP=7201592928en_US
dc.identifier.scopusauthoridLi, XY=55153507800en_US
dc.identifier.scopusauthoridShi, YW=7404964763en_US

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