Single-crystal height extension by Laser Metal Deposition of CMSX-4

Publikation: Beitrag in Fachzeitschrift › Konferenzaufsatz in Fachzeitschrift › Forschung › Peer-Review

Autoren

  • I. Buchbender
  • C. Hoff
  • J. Hermsdorf
  • V. Wesling
  • S. Kaierle

Externe Organisationen

  • Laser Zentrum Hannover e.V. (LZH)
Forschungs-netzwerk anzeigen

Details

OriginalspracheEnglisch
Seiten (von - bis)304-309
Seitenumfang6
FachzeitschriftProcedia CIRP
Jahrgang94
Frühes Online-Datum15 Sept. 2020
PublikationsstatusVeröffentlicht - 2020
Extern publiziertJa

Abstract

The introduction of directionally solidified and single-crystal nickel-based superalloys have led to a higher thermal efficiency of engines by allowing for an increase in turbine inlet temperatures from 1000°C to 1400°C. These temperatures however lead to higher thermal stress and corrosive environments, resulting in a shorter life span. Previous work has shown the applicability of laser metal deposition (LMD) for the regeneration of these high value components, while maintaining primary crystalline orientation of single-crystal high pressure turbine blades. However, the processing of these materials by LMD poses several challenges, such as susceptibility to cracking, the formation of misoriented grains and low weldability. This paper examines deposition strategies to extend single-crystal height. While a continuous, meandering strategy shows the most promising percentage single-crystallinity results, an additional remelting step increases epitaxial deposition height. Apart from percentage single-crystallinity and deposition height, this study quantifies the effect of these strategies on cracking and the formation of misorientations.

ASJC Scopus Sachgebiete

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Single-crystal height extension by Laser Metal Deposition of CMSX-4. / Buchbender, I.; Hoff, C.; Hermsdorf, J. et al.
in: Procedia CIRP, Jahrgang 94, 2020, S. 304-309.

Publikation: Beitrag in Fachzeitschrift › Konferenzaufsatz in Fachzeitschrift › Forschung › Peer-Review

Buchbender, I, Hoff, C, Hermsdorf, J, Wesling, V & Kaierle, S 2020, 'Single-crystal height extension by Laser Metal Deposition of CMSX-4', Procedia CIRP, Jg. 94, S. 304-309. https://doi.org/10.1016/j.procir.2020.09.057
Buchbender, I., Hoff, C., Hermsdorf, J., Wesling, V., & Kaierle, S. (2020). Single-crystal height extension by Laser Metal Deposition of CMSX-4. Procedia CIRP, 94, 304-309. https://doi.org/10.1016/j.procir.2020.09.057
Buchbender I, Hoff C, Hermsdorf J, Wesling V, Kaierle S. Single-crystal height extension by Laser Metal Deposition of CMSX-4. Procedia CIRP. 2020;94:304-309. Epub 2020 Sep 15. doi: 10.1016/j.procir.2020.09.057
Buchbender, I. ; Hoff, C. ; Hermsdorf, J. et al. / Single-crystal height extension by Laser Metal Deposition of CMSX-4. in: Procedia CIRP. 2020 ; Jahrgang 94. S. 304-309.
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title = "Single-crystal height extension by Laser Metal Deposition of CMSX-4",
abstract = "The introduction of directionally solidified and single-crystal nickel-based superalloys have led to a higher thermal efficiency of engines by allowing for an increase in turbine inlet temperatures from 1000°C to 1400°C. These temperatures however lead to higher thermal stress and corrosive environments, resulting in a shorter life span. Previous work has shown the applicability of laser metal deposition (LMD) for the regeneration of these high value components, while maintaining primary crystalline orientation of single-crystal high pressure turbine blades. However, the processing of these materials by LMD poses several challenges, such as susceptibility to cracking, the formation of misoriented grains and low weldability. This paper examines deposition strategies to extend single-crystal height. While a continuous, meandering strategy shows the most promising percentage single-crystallinity results, an additional remelting step increases epitaxial deposition height. Apart from percentage single-crystallinity and deposition height, this study quantifies the effect of these strategies on cracking and the formation of misorientations.",
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Download

TY - JOUR

T1 - Single-crystal height extension by Laser Metal Deposition of CMSX-4

AU - Buchbender, I.

AU - Hoff, C.

AU - Hermsdorf, J.

AU - Wesling, V.

AU - Kaierle, S.

N1 - Funding information: This project is funded by the Forschungsgemeinschaft (DFG, German Foundation) – SFB 871/3 – 119193472.

PY - 2020

Y1 - 2020

N2 - The introduction of directionally solidified and single-crystal nickel-based superalloys have led to a higher thermal efficiency of engines by allowing for an increase in turbine inlet temperatures from 1000°C to 1400°C. These temperatures however lead to higher thermal stress and corrosive environments, resulting in a shorter life span. Previous work has shown the applicability of laser metal deposition (LMD) for the regeneration of these high value components, while maintaining primary crystalline orientation of single-crystal high pressure turbine blades. However, the processing of these materials by LMD poses several challenges, such as susceptibility to cracking, the formation of misoriented grains and low weldability. This paper examines deposition strategies to extend single-crystal height. While a continuous, meandering strategy shows the most promising percentage single-crystallinity results, an additional remelting step increases epitaxial deposition height. Apart from percentage single-crystallinity and deposition height, this study quantifies the effect of these strategies on cracking and the formation of misorientations.

AB - The introduction of directionally solidified and single-crystal nickel-based superalloys have led to a higher thermal efficiency of engines by allowing for an increase in turbine inlet temperatures from 1000°C to 1400°C. These temperatures however lead to higher thermal stress and corrosive environments, resulting in a shorter life span. Previous work has shown the applicability of laser metal deposition (LMD) for the regeneration of these high value components, while maintaining primary crystalline orientation of single-crystal high pressure turbine blades. However, the processing of these materials by LMD poses several challenges, such as susceptibility to cracking, the formation of misoriented grains and low weldability. This paper examines deposition strategies to extend single-crystal height. While a continuous, meandering strategy shows the most promising percentage single-crystallinity results, an additional remelting step increases epitaxial deposition height. Apart from percentage single-crystallinity and deposition height, this study quantifies the effect of these strategies on cracking and the formation of misorientations.

KW - Laser cladding

KW - Single-crystal

KW - Superalloys

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U2 - 10.1016/j.procir.2020.09.057

DO - 10.1016/j.procir.2020.09.057

M3 - Conference article

VL - 94

SP - 304

EP - 309

JO - Procedia CIRP

JF - Procedia CIRP

SN - 2212-8271

ER -