Research of retailoring process of the rotor blade feather end of the first stage of high-pressure turbine (HPT) from ZS32-VI alloy by laser metal deposition with ZS32-VI metal alloy powder dispersed by atomization

Nerush S.V., Ermolaev A.S., Rogalev A.M., Vasilenko S.A.
UDC
669.018.44:669.245
DOI
10.18577/2307-6046-2016-0-8-4-4
Article PDF (Russian) (1021 KB)
How to cite
Nerush S.V., Ermolaev A.S., Rogalev A.M., Vasilenko S.A. Research of retailoring process of the rotor blade feather end of the first stage of high-pressure turbine (HPT) from ZS32-VI alloy by laser metal deposition with ZS32-VI metal alloy powder dispersed by atomization // Proceedings of VIAM. 2016. No. 8. DOI: 10.18577/2307-6046-2016-0-8-4-4. URL: https://test.viam.ru/en/journal/2016/8/4
Keywords
gas atomization, metal powder, laser metal deposition, granulometric composition, surface morphology, rotor blade.
Abstract

The ZS32-VI metal alloy powder for laser metal deposition dispersed by gas atomi-zation at HERMIGA 10/100 VI is researched. It is shown that the granules have a regular spherical shape with a small number of defective granules. The deposition quality of the rotor blade feather end of the high-pressure turbine first stage is performed. Laser metal deposition, performed with ZS32-VI metal alloy powder with granulometric composition 40–80 µm after degassing annealing and heating, provides with high quality deposited material (defects such as microcrack or lack of penetration are not revealed), and geometry retailoring in full. The work is executed within implementation of the complex scientific direction 10.4. «Technologies of bi-and polymetallic naturally reinforced metal materials by method of direct laser synthesis from metal powders» («The strategic directions of development of materials and technologies of their processing for the period till 2030») [1].

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