scholarly journals EVALUATION OF SERVICE LIFE OF HEAT-RESISTANT ALLOYS UNDER CYCLIC THERMOMECHANICAL LOADING

2016 ◽  
Vol 3 ◽  
pp. 264-281
Author(s):  
Ivan Volkov ◽  
Leonid Igumnov
Keyword(s):  
Service Life ◽  
Thermomechanical Loading ◽  
Heat Resistant ◽  
Cyclic Thermomechanical Loading

Deformation Modeling and Lifetime Prediction of Ni-Base Gas Turbine Blade Alloys Under TMF-Conditions

2014 ◽  
Author(s):  
Stefan Grützner ◽  
Bernard Fedelich ◽  
Birgit Rehmer ◽  
Maria Mosquera
Keyword(s):  
Gas Turbine ◽  
Turbine Blade ◽  
Creep Damage ◽  
Material Model ◽  
Lifetime Prediction ◽  
Strain Accumulation ◽  
Loading Conditions ◽  
Gas Turbine Blade ◽  
Thermomechanical Loading ◽  
Cyclic Thermomechanical Loading

Under cyclic thermomechanical loading conditions, various effects such as strain accumulation, creep damage, ageing, fatigue etc. may occur in the material of a gas turbine blade. Depending on the loading conditions, all these effects contribute to reduce the lifetime of the component. Subject of the present work is the development of a lifetime model able to discriminate between the different damage mechanisms, as well as the development of a material model to describe the mentioned effects and thus providing the input data for lifetime prediction.

Results of an investigation of the service life of heat-resistant materials under repeated static load

1982 ◽  
Vol 14 (9) ◽  
pp. 1173-1178 ◽  
Author(s):  
L. P. Lozitskii ◽  
A. N. Vetrov ◽  
V. A. Ivanenko
Keyword(s):  
Service Life ◽  
Static Load ◽  
Heat Resistant

Failure of thermal barrier coating systems under cyclic thermomechanical loading

2000 ◽  
Vol 48 (18-19) ◽  
pp. 4699-4707 ◽  
Author(s):  
E Tzimas ◽  
H Müllejans ◽  
S.D Peteves ◽  
J Bressers ◽  
W Stamm
Keyword(s):  
Thermal Barrier Coating ◽  
Thermal Barrier ◽  
Thermomechanical Loading ◽  
Barrier Coating ◽  
Cyclic Thermomechanical Loading

Material Modelling and Lifetime Prediction of Ni-Base Gas Turbine Blades under TMF Conditions

2014 ◽  
Vol 891-892 ◽  
pp. 1277-1282 ◽  
Author(s):  
Stefan Gruetzner ◽  
Bernard Fedelich ◽  
Birgit Rehmer ◽  
Bjoern Buchholz
Keyword(s):  
Gas Turbine ◽  
Turbine Blades ◽  
Material Model ◽  
Loading Conditions ◽  
Thermomechanical Loading ◽  
Damage Mechanisms ◽  
Surface Cracking ◽  
Gas Turbine Blades ◽  
Creep Cavitation ◽  
Cyclic Thermomechanical Loading

Under cyclic thermomechanical loading conditions, various damage mechanisms such as strain accumulation, creep cavitation, ageing, fatigue surface cracking etc. may take place in the material of a gas turbine blade. Depending on the loading conditions, all these effects can contribute to reduce the lifetime of the component. Subject of the present work is the development of a material model to describe the mechanical effects mentioned above, as well as the development of a lifetime model able to discriminate the different damage mechanisms.

scholarly journals Cobalt–Niobium-Carbide Eutectic Alloys for Increasing the Service Life of Gas Turbine Engines

2021 ◽  
Vol 22 (4) ◽  
pp. 678-693
Author(s):  
G. P. Dmitrieva ◽  
T. S. Cherepova ◽  
T. V. Pryadko
Keyword(s):  
Service Life ◽  
Gas Turbine ◽  
Niobium Carbide ◽  
Aircraft Engine ◽  
Turbine Engines ◽  
Gas Turbine Engines ◽  
Eutectic Alloys ◽  
Heat Resistant ◽  
The Creation

This article represents the stages of the creation of new serial wear-proof and heat-resistant (at temperatures up to 1100 °C) cobalt–Nb-carbide cast eutectic alloys of the KhTN (XTN) grade at the G.V. Kurdyumov Institute for Metal Physics of the N.A.S. of Ukraine, comparing them by their main properties, and use in aircraft engine engineering.

Hydrogen concentration and hydrides in Zircaloy-4 during cyclic thermomechanical loading

2021 ◽  
pp. 117368
Author(s):  
Yang Liu ◽  
Said El Chamaa ◽  
Mark R. Wenman ◽  
Catrin M. Davies ◽  
Fionn P.E. Dunne
Keyword(s):  
Hydrogen Concentration ◽  
Thermomechanical Loading ◽  
Cyclic Thermomechanical Loading

Properties of Rolled and Extruded Semiproducts Made of New Al-Cu-Mg-Ag Heat-Resistant B-1213 Alloy

2006 ◽  
Vol 519-521 ◽  
pp. 483-488 ◽  
Author(s):  
I.N. Fridlyander ◽  
V.V. Antipov ◽  
T.P. Fedorenko ◽  
E.G. Jakimova
Keyword(s):  
Fatigue Life ◽  
Service Life ◽  
Heat Resistance ◽  
Crack Resistance ◽  
Primary Structure ◽  
Elevated Temperatures ◽  
Strength Properties ◽  
Heat Resistant

Main properties and structure of 2 mm thick sheets and 20×100 mm extruded strips made under industrial conditions from Al-Cu-Mg heat-resistant B-1213 alloy with Ag, Cr, Mn and Zr additions were investigated. It was stated that wrought B-1213 alloy semiproducts are superior to analogous semis made of widely used commercial heat resistant AK4-1ch-type alloys (analogues - AU2GN, 2618 alloys) in strength properties and heat resistance characteristics (by 10-20 %) as well as in crack resistance and fatigue life (by 20-40 %). B-1213 alloy is intended for replacement of traditional heat-resistant alloys of system Al-Cu-Mg-Fe-Ni in advanced aircraft primary structure components subjected heating at elevated temperatures (up to 200-250 oC) and allows one to increase weight efficiency, service life and reliability.

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