Microstructural and mechanical characterization of nitinol GTAW and FB welds of titanium

Alla Ivanovna Kabatskaia, Víctor M.López Hirata, Eduardo Oliva López, Ricardo Rodríguez Figueroa, Jorge Rodríguez Miramontes

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

3 Scopus citations

Abstract

Microstructural and mechanical characterization of Nitinol gas tungsten arc weld (GTAW) and furnace brazing (FB) welds for grade 1 titanium plates are carried out in order to study the microstructure developed after welding and its effect on the mechanical properties of welds. The GTAW process yields the highest hardness weld. The constituents for this weld consist of a dendritic structure of NiTi and NiTi2 intermetallic phases. The FB process promotes a change of the welds chemical composition due to atomic diffusion of Ti. The weld microconstituents consist of a mixture of a Ti-rich and NiTi 2 eutectic and a proeutectic Ti-rich phase.

Original languageEnglish
Title of host publicationAdvanced Structural Materials II - Proceedings of the Advanced Structural Materials Symposium of the Annual Congress of the Mexican Academy of Materials Science
PublisherTrans Tech Publications Ltd
Pages165-170
Number of pages6
ISBN (Print)0878499938, 9780878499939
DOIs
StatePublished - 2006
EventAdvanced Structural Materials Symposium of the Annual Congress of the Mexican Academy of Materials Science, 2004 - Cancun, Quintana Roo, Mexico
Duration: 22 Aug 200426 Aug 2004

Publication series

NameMaterials Science Forum
Volume509
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

Conference

ConferenceAdvanced Structural Materials Symposium of the Annual Congress of the Mexican Academy of Materials Science, 2004
Country/TerritoryMexico
CityCancun, Quintana Roo
Period22/08/0426/08/04

Keywords

  • Furnace brazing
  • Gas tungsten arc welding
  • Nitinol
  • Titanium

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