1-11 of 11
Alex Torkaman
Close
Save search
Follow your search
Access your saved searches in your account
Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Journal Articles

A Novel Yield Criterion for Nickel-Based Superalloys

Firat Irmak, Kevin Hanekom, Alex Torkaman, Ali P. Gordon
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. May 2023, 145(5): 051016.
Paper No: GTP-22-1364
https://doi.org/10.1115/1.4055920
Published Online: January 10, 2023
View Article titled, A Novel Yield Criterion for Nickel-Based Superalloys
Open the PDF for A Novel Yield Criterion for Nickel-Based Superalloys in another window
Topics: Alloys, Anisotropy, Modeling, Nickel, Superalloys, Temperature, Stress, Crystals
Proceedings Papers

A Novel Yield Criterion for Nickel-Based Superalloys

Firat Irmak, Kevin Hanekom, Alex Torkaman, Ali P. Gordon
Proc. ASME. GT2022, Volume 7: Industrial and Cogeneration; Manufacturing Materials and Metallurgy; Microturbines, Turbochargers, and Small Turbomachines; Oil & Gas Applications, V007T17A022, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-83274
https://doi.org/10.1115/GT2022-83274
View Paper titled, A Novel Yield Criterion for Nickel-Based Superalloys
Open the PDF for A Novel Yield Criterion for Nickel-Based Superalloys in another window
Topics: Nickel, Superalloys, Alloys, Crystals, Stress, Anisotropy, Gas turbines, High temperature, Solidification, Blades
Proceedings Papers

Low Cycle Fatigue Characterization of Additive Manufactured Specimen With as Printed Surface Roughness Made From Multiple Nickel Based Super Alloys

Alex Torkaman, Ramesh Keshava Bhattu
Proc. ASME. GT2022, Volume 7: Industrial and Cogeneration; Manufacturing Materials and Metallurgy; Microturbines, Turbochargers, and Small Turbomachines; Oil & Gas Applications, V007T17A013, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-82484
https://doi.org/10.1115/GT2022-82484
View Paper titled, Low Cycle Fatigue Characterization of Additive Manufactured Specimen With as Printed Surface Roughness Made From Multiple Nickel Based Super Alloys
Open the PDF for Low Cycle Fatigue Characterization of Additive Manufactured Specimen With as Printed Surface Roughness Made From Multiple Nickel Based Super Alloys in another window
Topics: Additive manufacturing, Alloys, Fractography, Low cycle fatigue, Nickel, Surface roughness
Proceedings Papers

Integration of Secondary Airflow Modeling Into Synergetic Cycle Calculation of F Class Industrial Gas Turbine

Shanel Staple, Gregory Vogel, Alex Torkaman, Andrii Khandrymailov, Viktor Yevlakhov
Proc. ASME. GT2022, Volume 7: Industrial and Cogeneration; Manufacturing Materials and Metallurgy; Microturbines, Turbochargers, and Small Turbomachines; Oil & Gas Applications, V007T16A006, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-82166
https://doi.org/10.1115/GT2022-82166
View Paper titled, Integration of Secondary Airflow Modeling Into Synergetic Cycle Calculation of F Class Industrial Gas Turbine
Open the PDF for Integration of Secondary Airflow Modeling Into Synergetic Cycle Calculation of F Class Industrial Gas Turbine in another window
Topics: Air flow, Cooling, Cycles, Gas turbines, Industrial gases, Leakage, Modeling, Turbines
Proceedings Papers

Design, Development and Validation of Additively Manufactured First Stage Turbine Vane for F Class Industrial Gas Turbine

Alex Torkaman, Gregory Vogel, Lonnie Houck
Proc. ASME. GT2021, Volume 9A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics; Emerging Methods in Design and Engineering, V09AT25A005, June 7–11, 2021
Publisher: American Society of Mechanical Engineers
Paper No: GT2021-60201
https://doi.org/10.1115/GT2021-60201
View Paper titled, Design, Development and Validation of Additively Manufactured First Stage Turbine Vane for F Class Industrial Gas Turbine
Open the PDF for Design, Development and Validation of Additively Manufactured First Stage Turbine Vane for F Class Industrial Gas Turbine in another window
Topics: Additive manufacturing, Cooling, Design, Industrial gases, Turbines
Proceedings Papers

Experimental and Analytical Investigation of Cyclic Crack Initiation in Nickel Based Super Alloy With Stress Concentration Features

Alex Torkaman, Steve Fiebiger, Nathan O’Nora, Devin O’Neal, Ali Gordon
Proc. ASME. GT2021, Volume 9B: Structures and Dynamics — Fatigue, Fracture, and Life Prediction; Probabilistic Methods; Rotordynamics; Structural Mechanics and Vibration, V09BT26A009, June 7–11, 2021
Publisher: American Society of Mechanical Engineers
Paper No: GT2021-59608
https://doi.org/10.1115/GT2021-59608
View Paper titled, Experimental and Analytical Investigation of Cyclic Crack Initiation in Nickel Based Super Alloy With Stress Concentration Features
Open the PDF for Experimental and Analytical Investigation of Cyclic Crack Initiation in Nickel Based Super Alloy With Stress Concentration Features in another window
Topics: Alloys, Fracture (Materials), Nickel, Stress concentration, Turbine blades
Proceedings Papers

Numerical Investigation on the Influence of Tip Shroud Design Characteristics on the Aerodynamic Damping of a Last Stage Blade

Alexander V. Rozendaal, Alex Torkaman, Stephen W. Fiebiger
Proc. ASME. GT2021, Volume 9A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics; Emerging Methods in Design and Engineering, V09AT23A001, June 7–11, 2021
Publisher: American Society of Mechanical Engineers
Paper No: GT2021-58766
https://doi.org/10.1115/GT2021-58766
View Paper titled, Numerical Investigation on the Influence of Tip Shroud Design Characteristics on the Aerodynamic Damping of a Last Stage Blade
Open the PDF for Numerical Investigation on the Influence of Tip Shroud Design Characteristics on the Aerodynamic Damping of a Last Stage Blade in another window
Topics: Blades, Damping, Design, Flutter (Aerodynamics), Turbine blades
Proceedings Papers

Long Duration Uniform Crystal Temperature Sensor Application in Industrial Gas Turbine for Cooling Design Validation

Gregory Vogel, Anastasia Thomas, Edward Ginzbursky, Alex Torkaman
Proc. ASME. GT2020, Volume 7C: Heat Transfer, V07CT13A016, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-15010
https://doi.org/10.1115/GT2020-15010
View Paper titled, Long Duration Uniform Crystal Temperature Sensor Application in Industrial Gas Turbine for Cooling Design Validation
Open the PDF for Long Duration Uniform Crystal Temperature Sensor Application in Industrial Gas Turbine for Cooling Design Validation in another window
Topics: Cooling, Crystals, Design, Industrial gases, Temperature sensors, Turbines, Temperature, Engines, Sensors, Airfoils
Proceedings Papers

Comparison of Viscoplastic Modeling of an Equiaxed and Directionally Solidified Ni-Base Superalloy

Nathan O’Nora, Alex Torkaman, Ali P. Gordon
Proc. ASME. GT2020, Volume 10B: Structures and Dynamics, V10BT27A026, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-16244
https://doi.org/10.1115/GT2020-16244
View Paper titled, Comparison of Viscoplastic Modeling of an Equiaxed and Directionally Solidified Ni-Base Superalloy
Open the PDF for Comparison of Viscoplastic Modeling of an Equiaxed and Directionally Solidified Ni-Base Superalloy in another window
Topics: Modeling, Superalloys, Viscoplasticity
Proceedings Papers

Metallurgical Evaluation of an Additively Manufactured Nickel-Base Superalloy for Gas Turbine Guide Vanes

Alex Bridges, John Shingledecker, Alex Torkaman, Lonnie Houck
Proc. ASME. GT2020, Volume 8: Industrial and Cogeneration; Manufacturing Materials and Metallurgy; Marine; Microturbines, Turbochargers, and Small Turbomachines, V008T18A005, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-14808
https://doi.org/10.1115/GT2020-14808
View Paper titled, Metallurgical Evaluation of an Additively Manufactured Nickel-Base Superalloy for Gas Turbine Guide Vanes
Open the PDF for Metallurgical Evaluation of an Additively Manufactured Nickel-Base Superalloy for Gas Turbine Guide Vanes in another window
Topics: Additive manufacturing, Gas turbines, Guide vanes, Nickel, Superalloys, Creep, Grain size, Rupture, Alloys, Casting
Proceedings Papers

Gas Turbine Cycle Upgrade and Validation for Heavy Duty Industrial Machines

Alex Torkaman, Gregory Vogel, Steve Fiebiger, Doug Dietrich, Ron Washburn
Proc. ASME. GT2017, Volume 3: Coal, Biomass and Alternative Fuels; Cycle Innovations; Electric Power; Industrial and Cogeneration Applications; Organic Rankine Cycle Power Systems, V003T06A021, June 26–30, 2017
Publisher: American Society of Mechanical Engineers
Paper No: GT2017-64173
https://doi.org/10.1115/GT2017-64173
View Paper titled, Gas Turbine Cycle Upgrade and Validation for Heavy Duty Industrial Machines
Open the PDF for Gas Turbine Cycle Upgrade and Validation for Heavy Duty Industrial Machines in another window
Topics: Blades, Combustion systems, Compressors, Cycles, Design, Emissions, Engines, Flutter (Aerodynamics), Gas turbines, Heat