Физика \ Импульсная техника

Processing of Gas Turbine Engine Blades with Intense Pulsed Electron Beams, страница 2

Alloy

HPPIB treatment w, J/cm2 n, pulses

(Dm/S)er , mg/mm2

s-1 , MPa

h0,mm

(Dm/S)cor, mg/mm2

VT9

—

—

0.18±0.02

320±20

38±4

1.21±0.02

VT9

18–20

5

0.06±0.02

360±10

26±4

0.24±0.02

EP866sh

—

—

0.15±0.02

380±10

45±5

1.98±0.02

EP866sh

20–22

5

0.11±0.02

420±10

15±4

0.33±0.02

GhS26NK

—

—

—

220±20

50±10

—

GhS26NK

40–42

2

—

250±10

15±5

—

 c

 d

FIGURE 1. Surface topography of GhS26NK alloy blades with NiCrAlY coating before (a) and after irradiation: J=26 J/cm2 — b; J=42 J/cm2 — c; J=55 J/cm2 — d

FIGURE 2. Microstructure of the surface layer of GhS26NK alloy turbine blade with NiCrAlY coating after its ablation by electron beam at «GESA-2» accelerator (J=80 J/cm2, n=10 pulses)

FIGURE 3. Photograph of GS26NK alloy blades with NiCrAlY coating after irradiation for long life tests in content of RD33 engine

ACKNOWLEDGMENTs

This work was supported by ISTC (project No 975.2)

REFERENCES

1. Petuhov A. N. Fatigue resistance of gas turbine engine parts. M.: Machine-Building, 1993.

2. Engelko V., Yatsenko V., Mueller G., Bluhm H., Vacuum, 62, 211–215, 2001.

3. Paikin A., Lvov A., Shulov V., Nochovnaya N., Engelko V., Problems of Machine Building, Automation, 3, 41–49, 2003 (in Russian).

4. Vinogradov M., Lvov A., Shulov V., Nochovnaya N., Engelko V., Problems of Machine Building, Automation, 1, 36–43, 2001 (in Russian).

5. Engelko V., Nochovnaya N., Lvov A., Mueller G., Shulov V., Proceedings of 6th Int. Conf. on Modification of Materials with Particle Beams, Plasma flows, 23–28 September 2002, Tomsk, 339–342.
Скачать файл