Solid-State Joining of Dissimilar Ni-Based Superalloys via Field-Assisted Sintering Technology for Turbine Applications

Charis I. Lin; Namiko Yamamoto; Derek S. King; Jogender Singh

doi:10.1007/s11661-021-06274-w

Solid-State Joining of Dissimilar Ni-Based Superalloys via Field-Assisted Sintering Technology for Turbine Applications

Charis I. Lin, Namiko Yamamoto, Derek S. King, Jogender Singh

Research output: Contribution to journal › Article › peer-review

8 Scopus citations

Abstract

Friction welding or electron/laser beam welding of nickel superalloys compromises the microstructure with localized melting and heat-affected zones (HAZ). In this work, Field-Assisted Sintering Technology (FAST) is studied as an alternative method for solid-state diffusion bonding of superalloys CM247LC and Inconel 718. Bonding microstructures and room-temperature tensile strengths are evaluated. Preliminary results suggest that FAST bonding leads to an interface with a compositional gradient without producing a HAZ and without losing tensile strength.

Original language	English (US)
Pages (from-to)	2149-2154
Number of pages	6
Journal	Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science
Volume	52
Issue number	6
DOIs	https://doi.org/10.1007/s11661-021-06274-w
State	Published - Jun 2021

All Science Journal Classification (ASJC) codes

Condensed Matter Physics
Mechanics of Materials
Metals and Alloys

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10.1007/s11661-021-06274-w

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title = "Solid-State Joining of Dissimilar Ni-Based Superalloys via Field-Assisted Sintering Technology for Turbine Applications",

abstract = "Friction welding or electron/laser beam welding of nickel superalloys compromises the microstructure with localized melting and heat-affected zones (HAZ). In this work, Field-Assisted Sintering Technology (FAST) is studied as an alternative method for solid-state diffusion bonding of superalloys CM247LC and Inconel 718. Bonding microstructures and room-temperature tensile strengths are evaluated. Preliminary results suggest that FAST bonding leads to an interface with a compositional gradient without producing a HAZ and without losing tensile strength.",

author = "Lin, {Charis I.} and Namiko Yamamoto and King, {Derek S.} and Jogender Singh",

note = "Publisher Copyright: {\textcopyright} 2021, The Minerals, Metals & Materials Society and ASM International.",

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doi = "10.1007/s11661-021-06274-w",

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journal = "Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science",

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Solid-State Joining of Dissimilar Ni-Based Superalloys via Field-Assisted Sintering Technology for Turbine Applications. / Lin, Charis I.; Yamamoto, Namiko; King, Derek S. et al.
In: Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science, Vol. 52, No. 6, 06.2021, p. 2149-2154.

Research output: Contribution to journal › Article › peer-review

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AU - Lin, Charis I.

AU - Yamamoto, Namiko

AU - King, Derek S.

AU - Singh, Jogender

PY - 2021/6

Y1 - 2021/6

N2 - Friction welding or electron/laser beam welding of nickel superalloys compromises the microstructure with localized melting and heat-affected zones (HAZ). In this work, Field-Assisted Sintering Technology (FAST) is studied as an alternative method for solid-state diffusion bonding of superalloys CM247LC and Inconel 718. Bonding microstructures and room-temperature tensile strengths are evaluated. Preliminary results suggest that FAST bonding leads to an interface with a compositional gradient without producing a HAZ and without losing tensile strength.

AB - Friction welding or electron/laser beam welding of nickel superalloys compromises the microstructure with localized melting and heat-affected zones (HAZ). In this work, Field-Assisted Sintering Technology (FAST) is studied as an alternative method for solid-state diffusion bonding of superalloys CM247LC and Inconel 718. Bonding microstructures and room-temperature tensile strengths are evaluated. Preliminary results suggest that FAST bonding leads to an interface with a compositional gradient without producing a HAZ and without losing tensile strength.

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Solid-State Joining of Dissimilar Ni-Based Superalloys via Field-Assisted Sintering Technology for Turbine Applications

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