Laser cladding of nozzle blades made of cobalt alloy MAR-M 509 using the laser gas-powder cladding method

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Abstract

The articles indicates the parameters of laser gas-powder cladding mode to restore the MAN TURBO engine nozzle blades made of cobalt alloy MAR-M 509 using the domestic powder EP648. The process measures to prevent crack formation during the laser cladding are described. Restoration of a series of nozzle blades was performed using a robotized station for laser direct deposition.

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About the authors

Vladimir G. Protsenko

Peter the Great Saint-Petersburg Polytechnic University

Email: dmitriyanufriyev23@yandex.ru

engineer of the research laboratory “Laser and Additive Technologies”, Institute of Mechanical Engineering, Materials and Transport

Russian Federation, Saint-Petersburg

Dmitry Anufriev

Peter the Great Saint-Petersburg Polytechnic University

Author for correspondence.
Email: dmitriyanufriyev23@yandex.ru
ORCID iD: 0009-0005-5698-9625

Engineer of the Research Laboratory “Laser and Additive Technologies”, Research Laboratory “Laser and Additive Technologies”, Institute of Mechanical Engineering, Materials and Transport

Russian Federation, Saint-Petersburg

Mikhail V. Kuznetsov

Peter the Great Saint-Petersburg Polytechnic University

Email: kuznetsov_mich@mail.ru
ORCID iD: 0000-0002-9981-1078

Cand.of Technical Sciences, Head of the Research Laboratory “Laser and Additive Technologies”, Institute of Mechanical Engineering, Materials and Transport

Russian Federation, Saint-Petersburg

Anatoly A. Popovich

Peter the Great Saint-Petersburg Polytechnic University

Email: dmitriyanufriyev23@yandex.ru
ORCID iD: 0000-0002-5974-6654

Doctor of Technical Sciences, professor, director of the Institute of Mechanical Engineering, Materials and Transport

Russian Federation, Saint-Petersburg

References

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Supplementary files

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2. Fig. 1. Laser gas powder cladding process

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3. Fig. 2. Robotized station for laser direct deposition

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4. Fig. 3. Cross-section of a sample made of EP648

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5. Fig. 4. Photograph of the obtained weld deposit

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6. Fig. 5. Microstructure of the weld zone

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7. Fig. 6. Distribution of hardness by the deposited layer height

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8. Fig. 7. Cracks formed during the cladding process: a) – along the fusion line; b) – in the heat-affected zone

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9. Fig. 8. Section of the fusion zone MAR-M 509 and EP648 (weld deposit on the right side)

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10. Fig. 9. Model of equipment for preliminary and subsequent heating of a blade

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Copyright (c) 2025 Protsenko V.G., Anufriev D., Kuznetsov M.V., Popovich A.A.