Effects of Cycle Type and Coating on the TMF Lives of a Single Crystal Nickel Based Gas Turbine Blade Alloy

2009 ◽  
pp. 56-56-12 ◽  
Author(s):  
J Bressers ◽  
J Timm ◽  
SJ Williams ◽  
A Bennett ◽  
EE Affeldt
Keyword(s):  
Single Crystal ◽  
Gas Turbine ◽  
Turbine Blade ◽  
Gas Turbine Blade ◽  
Blade Alloy

TEM Analyses of Microstructure Evolution in Ex-Service Single Crystal CMSX-4 Gas Turbine Blade

2012 ◽  
Vol 186 ◽  
pp. 139-142 ◽  
Author(s):  
Beata Dubiel ◽  
Aleksandra Czyrska-Filemonowicz
Keyword(s):  
Single Crystal ◽  
Gas Turbine ◽  
Turbine Blade ◽  
Microstructure Evolution ◽  
Dislocation Substructure ◽  
Dislocation Climb ◽  
Dislocation Slip ◽  
Gas Turbine Blade ◽  
Tem Analysis ◽  
Blade Height

TEM studies of the ex-service single crystal blade were performed to analyse the microstructural changes which control the degradation of the CMSX-4 superalloy during its exposure in a gas turbine. Microstructural analyses were focused mainly on evolution of the γ-γ’ morphology and examination of dislocation configurations in particular parts of the blade. Between the bottom and tip locations of the blade a pronounced differences in γ-γ’ morphology were observed. TEM analysis of the dislocation substructure showed that at the bottom of the blade the dislocation slip is mainly confined to the horizontal γ channels. Increasing of the temperature and decreasing of stress along the blade height resulted in the γ-γ’ rafting, formation of dislocation networks and intensification of the dislocation climb in vertical γ channels.

scholarly journals An alternative coating material for gas turbine blade for aerospace applications

2020 ◽  
Vol 1706 ◽  
pp. 012183
Author(s):  
Yajnesh M Poojari ◽  
Koustubh S Annigeri ◽  
Nilesh Bandekar ◽  
Kiran U Annigeri ◽  
Vinayak badiger ◽  
...  
Keyword(s):  
Gas Turbine ◽  
Turbine Blade ◽  
Coating Material ◽  
Gas Turbine Blade ◽  
Aerospace Applications

Defect assessment in gas turbine blade coatings using non-contact thermography

2020 ◽  
Author(s):  
M. Mahesh Kumar ◽  
A.H.V. Pavan ◽  
R. Markandeya ◽  
Kulvir Singh
Keyword(s):  
Gas Turbine ◽  
Turbine Blade ◽  
Gas Turbine Blade ◽  
Defect Assessment

Effects of the positive pre-swirl purge flow on endwall aero-thermal performance of a gas turbine blade

2021 ◽  
Vol 163 ◽  
pp. 106805
Author(s):  
Zhi Tao ◽  
Fengchao Li ◽  
Boyang Yu ◽  
Peiyuan Zhu ◽  
Liming Song ◽  
...  
Keyword(s):  
Gas Turbine ◽  
Turbine Blade ◽  
Thermal Performance ◽  
Gas Turbine Blade ◽  
Purge Flow
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