High Cycle Fatigue and Cyclic Plastic Deformation Behaviour of High Temperature Oxidation Resistant Titanium Aluminide Coated IMI 834 Alloy at 873 K
-
Ashok Kumar Ray
and
Prabir Kumar Roy
Abstract
High cycle and force-controlled (HCF) as well as low cycle fatigue (LCF) behaviour of titanium alloy IMI 834 was comparatively studied in bare condition and with titanium aluminide (Al2Ti) coating, at 873 K in air, for compressor disc of aero engines. HCF testing of bare and Al2Ti coated IMI 834 alloy at 873 K in air revealed that the coated materials has higher lifetime than the bare alloy. However, for low cycle, high stress lifetimes, the unprotected bare alloy is stronger, possibly due to early crack formation and growth in coated layer. In the case of LCF tests at higher values of total strain amplitudes Al2Ti coated IMI 834 alloy has longer fatigue life (Nf) as compared to the bare IMI 834 alloy which appears to be due to load shifting to the coat, but at lower values of total strain amplitude, Al2Ti coating on IMI 834 alloy seems to have no effect on Nf . Higher values of cyclic strength coefficient (K′) and cyclic hardening exponent (n′) for coated IMI 834 alloy indicate that coating offers resistance to cyclic plastic deformation at 873 K in air, and hence is beneficial. The coating adheres well to the substrate and is also fairly resistant to high temperature corrosion in sea water atmosphere at 873 K.
©[2012] by Walter de Gruyter Berlin Boston
Articles in the same Issue
- Masthead
- High Temperature Tensile Properties of Equal Channel Angular Pressed Al-Zn-Mg-Cu Alloy
- Hard Finish Turning Parameters Optimization for Machining of High Temperature Stainless Steel
- High Cycle Fatigue and Cyclic Plastic Deformation Behaviour of High Temperature Oxidation Resistant Titanium Aluminide Coated IMI 834 Alloy at 873 K
- Microstructural and Mechanical Properties of Er2O3-ZrO2 Ceramics with Different Er2O3 Contents
- Synthesis of Different Morphologies of PbS Nanostructures via Hydrothermal Process
- Facile Hydrothermal Synthesis of CoSO4ċH2O Nanoparticles and Barite Microcubes from Novel Precursors
- Hot Corrosion of Fe-Cr Alloys with 75 Na2SO4 + 25 NaCl Coating at 1173 K
- A Simple Method for Synthesis of PbS Nanoparticles Using 2-Mercaptoethanol as the Capping Agent
- Influence of Alloy Grain Size on High Temperature Corrosion Behavior of 2.25 Cr-1 Mo Steel in SO2 + O2 Atmosphere
- Encapsulation of Erbium(III) and Thulium(III) Nanocomplexes Containing 18- and 20-Membered Dioxa Tetraaza Macryclic Ligands Within the Framework of Zeolite
- Calculation of the Raman Linewidths of Lattice Modes Close to the α-β Transition in Quartz
- Production and Characterization of Hydroxyapatite-Zirconia Composites
- Influence of Long-term Aging on Microstructure and Creep Behaviors of FGH95 Nickel-based Superalloy
- Remnant Life Assessment and Microstructural Studies on Service Exposed Primary Reformer Tubes of a Catalytic Converter of an Ammonia Plant
- Preparation and Characterization of Poly Methyl Methacrylate-cadmium Sulfide Nanocomposite
- Oxidation Kinetics of Steels Utilized in the Production of Valves in Automobile Industry
Articles in the same Issue
- Masthead
- High Temperature Tensile Properties of Equal Channel Angular Pressed Al-Zn-Mg-Cu Alloy
- Hard Finish Turning Parameters Optimization for Machining of High Temperature Stainless Steel
- High Cycle Fatigue and Cyclic Plastic Deformation Behaviour of High Temperature Oxidation Resistant Titanium Aluminide Coated IMI 834 Alloy at 873 K
- Microstructural and Mechanical Properties of Er2O3-ZrO2 Ceramics with Different Er2O3 Contents
- Synthesis of Different Morphologies of PbS Nanostructures via Hydrothermal Process
- Facile Hydrothermal Synthesis of CoSO4ċH2O Nanoparticles and Barite Microcubes from Novel Precursors
- Hot Corrosion of Fe-Cr Alloys with 75 Na2SO4 + 25 NaCl Coating at 1173 K
- A Simple Method for Synthesis of PbS Nanoparticles Using 2-Mercaptoethanol as the Capping Agent
- Influence of Alloy Grain Size on High Temperature Corrosion Behavior of 2.25 Cr-1 Mo Steel in SO2 + O2 Atmosphere
- Encapsulation of Erbium(III) and Thulium(III) Nanocomplexes Containing 18- and 20-Membered Dioxa Tetraaza Macryclic Ligands Within the Framework of Zeolite
- Calculation of the Raman Linewidths of Lattice Modes Close to the α-β Transition in Quartz
- Production and Characterization of Hydroxyapatite-Zirconia Composites
- Influence of Long-term Aging on Microstructure and Creep Behaviors of FGH95 Nickel-based Superalloy
- Remnant Life Assessment and Microstructural Studies on Service Exposed Primary Reformer Tubes of a Catalytic Converter of an Ammonia Plant
- Preparation and Characterization of Poly Methyl Methacrylate-cadmium Sulfide Nanocomposite
- Oxidation Kinetics of Steels Utilized in the Production of Valves in Automobile Industry
