Combined brazing and alitising process for thermally sprayed Ni-based alloys for the repair of turbine blades

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Details

OriginalspracheEnglisch
Seiten (von - bis)56-61
Seitenumfang6
FachzeitschriftThermal Spray Bulletin
Jahrgang2015
Ausgabenummer1
PublikationsstatusVeröffentlicht - 2015

Abstract

In this paper, a two-stage hybrid technology is developed for the near-net-shape
repair of turbine blades. Not only aspects relating to process and fabrication engineering but also materials engineering mechanisms are incorporated into this
technology. The process chain for the repair of turbine blades can be shortened
with this hybrid technology. The turbine blades considered here are components
of the high-pressure turbine and this paper therefore focuses on nickel-based
alloys. The nickel-based braze metal needed for the repair of turbine blades is
applied together with the hot gas corrosion protection coating by means of
thermal spraying and the coating system is subjected to a combined brazing and alitising process.

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Combined brazing and alitising process for thermally sprayed Ni-based alloys for the repair of turbine blades. / Nicolaus, Martin; Möhwald, Kai; Maier, Hans Jürgen.
in: Thermal Spray Bulletin, Jahrgang 2015, Nr. 1, 2015, S. 56-61.

Publikation: Beitrag in FachzeitschriftArtikelForschungPeer-Review

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AU - Nicolaus, Martin

AU - Möhwald, Kai

AU - Maier, Hans Jürgen

PY - 2015

Y1 - 2015

N2 - In this paper, a two-stage hybrid technology is developed for the near-net-shaperepair of turbine blades. Not only aspects relating to process and fabrication engineering but also materials engineering mechanisms are incorporated into thistechnology. The process chain for the repair of turbine blades can be shortenedwith this hybrid technology. The turbine blades considered here are componentsof the high-pressure turbine and this paper therefore focuses on nickel-basedalloys. The nickel-based braze metal needed for the repair of turbine blades isapplied together with the hot gas corrosion protection coating by means ofthermal spraying and the coating system is subjected to a combined brazing and alitising process.

AB - In this paper, a two-stage hybrid technology is developed for the near-net-shaperepair of turbine blades. Not only aspects relating to process and fabrication engineering but also materials engineering mechanisms are incorporated into thistechnology. The process chain for the repair of turbine blades can be shortenedwith this hybrid technology. The turbine blades considered here are componentsof the high-pressure turbine and this paper therefore focuses on nickel-basedalloys. The nickel-based braze metal needed for the repair of turbine blades isapplied together with the hot gas corrosion protection coating by means ofthermal spraying and the coating system is subjected to a combined brazing and alitising process.

M3 - Article

VL - 2015

SP - 56

EP - 61

JO - Thermal Spray Bulletin

JF - Thermal Spray Bulletin

SN - 1866-6248

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