Role of Pd interlayer on NiTi to Ti6Al4V laser welded joints

Bibliographic Details
Main Author: Teshome, Fissha Biruke
Publication Date: 2023
Other Authors: Peng, Bei, Oliveira, J. P., Shen, Jiajia, Ao, Sansan, Li, Haoyue, Chen, Long, Tan, Caiwang, Song, Xiaoguo, Zhou, Naixun, Zeng, Zhi
Format: Article
Language: eng
Source: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Download full: http://hdl.handle.net/10362/154936
Summary: Funding Information: This work was supported by, Natural Science Foundation of China (No. 52175292), Science and Technology Project of Sichuan Province (No. 2021YFG0053, 23NSFJQ0064) and GuangDong Basic and Applied Basic Research Foundation (2021B1515140048). JS acknowledges the China Scholarship Council for funding the Ph.D. grant (CSC NO. 201808320394). Yunnan Xieyan Technology is accredited for the advanced EBSD-EDS facility. Publisher Copyright: © 2023 The Author(s)
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spelling Role of Pd interlayer on NiTi to Ti6Al4V laser welded jointsMicrostructural evolution and strengthening mechanismsIntermetallic compoundsLaser weldingNiTi to Ti6Al4V jointPd interlayerShape memory alloysThermodynamic calculationsMaterials Science(all)Mechanics of MaterialsMechanical EngineeringFunding Information: This work was supported by, Natural Science Foundation of China (No. 52175292), Science and Technology Project of Sichuan Province (No. 2021YFG0053, 23NSFJQ0064) and GuangDong Basic and Applied Basic Research Foundation (2021B1515140048). JS acknowledges the China Scholarship Council for funding the Ph.D. grant (CSC NO. 201808320394). Yunnan Xieyan Technology is accredited for the advanced EBSD-EDS facility. Publisher Copyright: © 2023 The Author(s)Obtaining a reliable NiTi to Ti6Al4V dissimilar joint exhibiting NiTi's superelasticity can provide design flexibility in aerospace and biomedical fields via integrating distinct material benefits. However, this materials couple is vulnerable to severe embrittlement due to the development of excessive intermetallic compounds (IMCs), namely Ti2Ni. Pd-free and Pd-interlayered NiTi-Ti6Al4V laser joints were evaluated for their microstructure, compositional changes, thermodynamic mechanism, and mechanical properties. The presence of Pd constrained the formation of Ti2Ni IMC, and NiTi-Ti6Al4V joints with excellent mechanical properties demonstrating superelastic behavior were achieved for the first time. The tensile strength and rupture strain of the Pd-added NiTi-Ti6Al4V joint improved more than twofold, reaching 520 MPa and 5.6%, respectively. During cyclic tensile testing, the Pd-added joint demonstrated superelasticity and a comparable irrecoverable strain to NiTi (1 versus 0.65%). Multiscale characterization revealed that the fraction of Ti2Ni decreased from 83 to 10% near the NiTi boundary and 24 to 6% at the weld center compared to the Pd-free joint. The superior thermodynamic formation tendency of Ti-Pd compounds over Ti2Ni IMC favored their development, and thus Ti-Pd and NiTi compounds dominated the fusion zone (FZ) at the expense of Ti2Ni IMC, explaining the improved mechanical performance of the Pd-added joint.CENIMAT-i3N - Centro de Investigação de Materiais (Lab. Associado I3N)DCM - Departamento de Ciência dos MateriaisRUNTeshome, Fissha BirukePeng, BeiOliveira, J. P.Shen, JiajiaAo, SansanLi, HaoyueChen, LongTan, CaiwangSong, XiaoguoZhou, NaixunZeng, Zhi2023-07-06T22:17:05Z2023-042023-04-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article13application/pdfhttp://hdl.handle.net/10362/154936eng0264-1275PURE: 65373203https://doi.org/10.1016/j.matdes.2023.111845info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-03-11T05:37:24Zoai:run.unl.pt:10362/154936Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T03:55:51.592594Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Role of Pd interlayer on NiTi to Ti6Al4V laser welded joints
Microstructural evolution and strengthening mechanisms
title Role of Pd interlayer on NiTi to Ti6Al4V laser welded joints
spellingShingle Role of Pd interlayer on NiTi to Ti6Al4V laser welded joints
Teshome, Fissha Biruke
Intermetallic compounds
Laser welding
NiTi to Ti6Al4V joint
Pd interlayer
Shape memory alloys
Thermodynamic calculations
Materials Science(all)
Mechanics of Materials
Mechanical Engineering
title_short Role of Pd interlayer on NiTi to Ti6Al4V laser welded joints
title_full Role of Pd interlayer on NiTi to Ti6Al4V laser welded joints
title_fullStr Role of Pd interlayer on NiTi to Ti6Al4V laser welded joints
title_full_unstemmed Role of Pd interlayer on NiTi to Ti6Al4V laser welded joints
title_sort Role of Pd interlayer on NiTi to Ti6Al4V laser welded joints
author Teshome, Fissha Biruke
author_facet Teshome, Fissha Biruke
Peng, Bei
Oliveira, J. P.
Shen, Jiajia
Ao, Sansan
Li, Haoyue
Chen, Long
Tan, Caiwang
Song, Xiaoguo
Zhou, Naixun
Zeng, Zhi
author_role author
author2 Peng, Bei
Oliveira, J. P.
Shen, Jiajia
Ao, Sansan
Li, Haoyue
Chen, Long
Tan, Caiwang
Song, Xiaoguo
Zhou, Naixun
Zeng, Zhi
author2_role author
author
author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv CENIMAT-i3N - Centro de Investigação de Materiais (Lab. Associado I3N)
DCM - Departamento de Ciência dos Materiais
RUN
dc.contributor.author.fl_str_mv Teshome, Fissha Biruke
Peng, Bei
Oliveira, J. P.
Shen, Jiajia
Ao, Sansan
Li, Haoyue
Chen, Long
Tan, Caiwang
Song, Xiaoguo
Zhou, Naixun
Zeng, Zhi
dc.subject.por.fl_str_mv Intermetallic compounds
Laser welding
NiTi to Ti6Al4V joint
Pd interlayer
Shape memory alloys
Thermodynamic calculations
Materials Science(all)
Mechanics of Materials
Mechanical Engineering
topic Intermetallic compounds
Laser welding
NiTi to Ti6Al4V joint
Pd interlayer
Shape memory alloys
Thermodynamic calculations
Materials Science(all)
Mechanics of Materials
Mechanical Engineering
description Funding Information: This work was supported by, Natural Science Foundation of China (No. 52175292), Science and Technology Project of Sichuan Province (No. 2021YFG0053, 23NSFJQ0064) and GuangDong Basic and Applied Basic Research Foundation (2021B1515140048). JS acknowledges the China Scholarship Council for funding the Ph.D. grant (CSC NO. 201808320394). Yunnan Xieyan Technology is accredited for the advanced EBSD-EDS facility. Publisher Copyright: © 2023 The Author(s)
publishDate 2023
dc.date.none.fl_str_mv 2023-07-06T22:17:05Z
2023-04
2023-04-01T00:00:00Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10362/154936
url http://hdl.handle.net/10362/154936
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 0264-1275
PURE: 65373203
https://doi.org/10.1016/j.matdes.2023.111845
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 13
application/pdf
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
repository.mail.fl_str_mv
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