Influenced by the growing share of Renewable Energies, higher flexibility and increased efficiency of fossil power plants as well as improved cost efficiency in production of turbine components are evident market trends. Daily cycling in turbine operations leads to advanced requirements for robust design especially of rotating parts. Low pressure (LP) steam turbine end-stage blades with larger exhaust areas are one lever to increase the efficiency of the turbine by reduction of exhaust losses and also to realize cost-efficient single flow exhaust applications. Consequently, blade steels with improved mechanical properties are required. The results of the development of a new high-strength precipitation-hardening (PH) steel for LP end-stage blade application with significantly enhanced material properties are reported. The paper covers the testing strategy applied and information on crucial material parameters like improved low cycle and high cycle fatigue (HCF) behavior while keeping good stress corrosion cracking (SCC) resistance and corrosion fatigue (CF) properties. Furthermore, first manufacturing experiences and validation results from a full-scale component test rig are presented.
Skip Nav Destination
Article navigation
January 2019
Research-Article
Development of a New High-Strength Steel for Low Pressure Steam Turbine End-Stage Blades
Hannes Teuber,
Hannes Teuber
Siemens AG, Power and Gas,
Rheinstrasse 100,
Muelheim an der Ruhr 45478, Germany
e-mail: hannes.teuber@siemens.com
Rheinstrasse 100,
Muelheim an der Ruhr 45478, Germany
e-mail: hannes.teuber@siemens.com
Search for other works by this author on:
Jochen Barnikel,
Jochen Barnikel
Siemens AG, Power and Gas,
Rheinstrasse 100,
Muelheim an der Ruhr 45478, Germany
e-mail: jochen.barnikel@siemens.com
Rheinstrasse 100,
Muelheim an der Ruhr 45478, Germany
e-mail: jochen.barnikel@siemens.com
Search for other works by this author on:
Michael Dankert,
Michael Dankert
Siemens AG, Power and Gas,
Rheinstrasse 100,
Muelheim an der Ruhr 45478, Germany
e-mail: michael.dankert@siemens.com
Rheinstrasse 100,
Muelheim an der Ruhr 45478, Germany
e-mail: michael.dankert@siemens.com
Search for other works by this author on:
Walter David,
Walter David
Siemens AG, Power and Gas,
Rheinstrasse 100,
Muelheim an der Ruhr 45478, Germany
e-mail: walter.david@gmx.com
Rheinstrasse 100,
Muelheim an der Ruhr 45478, Germany
e-mail: walter.david@gmx.com
Search for other works by this author on:
Andrei Ghicov,
Andrei Ghicov
Siemens AG, Power and Gas,
Rheinstrasse 100,
Muelheim an der Ruhr 45478, Germany
e-mail: andrei.ghicov@siemens.com
Rheinstrasse 100,
Muelheim an der Ruhr 45478, Germany
e-mail: andrei.ghicov@siemens.com
Search for other works by this author on:
Simon Voss
Simon Voss
Siemens AG, Power and Gas,
Rheinstrasse 100,
Muelheim an der Ruhr 45478, Germany
e-mail: voss.simon@siemens.com
Rheinstrasse 100,
Muelheim an der Ruhr 45478, Germany
e-mail: voss.simon@siemens.com
Search for other works by this author on:
Hannes Teuber
Siemens AG, Power and Gas,
Rheinstrasse 100,
Muelheim an der Ruhr 45478, Germany
e-mail: hannes.teuber@siemens.com
Rheinstrasse 100,
Muelheim an der Ruhr 45478, Germany
e-mail: hannes.teuber@siemens.com
Jochen Barnikel
Siemens AG, Power and Gas,
Rheinstrasse 100,
Muelheim an der Ruhr 45478, Germany
e-mail: jochen.barnikel@siemens.com
Rheinstrasse 100,
Muelheim an der Ruhr 45478, Germany
e-mail: jochen.barnikel@siemens.com
Michael Dankert
Siemens AG, Power and Gas,
Rheinstrasse 100,
Muelheim an der Ruhr 45478, Germany
e-mail: michael.dankert@siemens.com
Rheinstrasse 100,
Muelheim an der Ruhr 45478, Germany
e-mail: michael.dankert@siemens.com
Walter David
Siemens AG, Power and Gas,
Rheinstrasse 100,
Muelheim an der Ruhr 45478, Germany
e-mail: walter.david@gmx.com
Rheinstrasse 100,
Muelheim an der Ruhr 45478, Germany
e-mail: walter.david@gmx.com
Andrei Ghicov
Siemens AG, Power and Gas,
Rheinstrasse 100,
Muelheim an der Ruhr 45478, Germany
e-mail: andrei.ghicov@siemens.com
Rheinstrasse 100,
Muelheim an der Ruhr 45478, Germany
e-mail: andrei.ghicov@siemens.com
Simon Voss
Siemens AG, Power and Gas,
Rheinstrasse 100,
Muelheim an der Ruhr 45478, Germany
e-mail: voss.simon@siemens.com
Rheinstrasse 100,
Muelheim an der Ruhr 45478, Germany
e-mail: voss.simon@siemens.com
1Corresponding author.
Manuscript received June 22, 2018; final manuscript received July 4, 2018; published online September 18, 2018. Editor: Jerzy T. Sawicki.
J. Eng. Gas Turbines Power. Jan 2019, 141(1): 011021 (7 pages)
Published Online: September 18, 2018
Article history
Received:
June 22, 2018
Revised:
July 4, 2018
Citation
Teuber, H., Barnikel, J., Dankert, M., David, W., Ghicov, A., and Voss, S. (September 18, 2018). "Development of a New High-Strength Steel for Low Pressure Steam Turbine End-Stage Blades." ASME. J. Eng. Gas Turbines Power. January 2019; 141(1): 011021. https://doi.org/10.1115/1.4040849
Download citation file:
Get Email Alerts
Cited By
Accelerating Chemical Kinetics Calculations with Physics Informed Neural Networks
J. Eng. Gas Turbines Power
Fully Coupled Analysis of Flutter Induced Limit Cycles: Frequency Versus Time Domain Methods
J. Eng. Gas Turbines Power (July 2023)
Impact of Ignition Assistant on Combustion of Cetane 30 and 35 Jet-Fuel Blends in a Compression-Ignition Engine at Moderate Load and Speed
J. Eng. Gas Turbines Power (July 2023)
Related Articles
Eddy Current Damping: A Concept Study for Steam Turbine Blading
J. Eng. Gas Turbines Power (May,2010)
Cyclic and Fatigue Behavior of the P355NL1 Steel Under Block Loading
J. Pressure Vessel Technol (April,2009)
Fatigue Damage Behavior of a Structural Component Made of P355NL1 Steel Under Block Loading
J. Pressure Vessel Technol (April,2009)
An Instantaneous Power of Strain Approach to the Calculation of Elastoplastic Strain Energy Density in SUS 304 Steel
J. Eng. Mater. Technol (July,2011)
Related Proceedings Papers
Related Chapters
Environment Assisted Cracking of Steam Turbine Blade Steels – A Consistent Rationalization Based on Hydrogen Assisted Cracking
International Hydrogen Conference (IHC 2012): Hydrogen-Materials Interactions
Introduction
Consensus on Operating Practices for Control of Water and Steam Chemistry in Combined Cycle and Cogeneration
Lessons Learned: NRC Experience
Continuing and Changing Priorities of the ASME Boiler & Pressure Vessel Codes and Standards