22  Prakt. Met. Sonderband 50 (20146) 
5 Refere 
[1] ASM | 
Handb 
[2] ASM | 
Comn 
[3] McEv 
[4] Electr 
Fig. 9: TMF cracking [5] Do 
[6] Maier, 
(X39C 
4  Tribological Failures — Erosion Damage to a Stage 17 Compressor Disk [7] Kruth, 
mater 
A last-stage compressor disk exhibited peculiar findings. Material was locally missing from the disk [8] ee 
rim. Almost no deformation was found in the metallographic sections immediately underneath the 2 
. : . manuf 
subject area. In the case of wear damage or gross deformation this should have been the case. Also, 52/22 
there was no evidence of corrosion whatsoever. It was therefore concluded that the failure [9] Hopki 
mechanism in this particular case could only be erosion, namely erosion in a flowing medium Journ: 
containing small solid particles [10] Kruth 
powdt 
[11] D2PI 
serien 
Verbu 
Dresd 
[12] vanE 
laser ı 
[13] Brodi 
Corre] 
2013: 
USA 
[14] Henn 
Z Wisc 
[15] Ramo 
Depos 
Freeft 
Fig. 10: Failed compressor disk [16] Küste 
2012 
[17] Fische 
Sinter 
BLN! 
[18] Zaeh, 
Laser 
Garch 
[19] Basso 
conso 
[20] www. 
EN/ 
Fig. 11: Evidence of erosion damage