1-20 of 93 Search Results for

steam turbine blade erosion

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
Series: ASM Handbook
Volume: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.a0006378
EISBN: 978-1-62708-192-4
... exposure to impacts by liquid drops or jets. This article focuses on the core nature of erosion by liquid impingement, due to the greater appreciation of the distinctions between the different forms of erosion. It discusses steam turbine blade erosion, aircraft rain erosion, and rain erosion of wind...
Series: ASM Handbook
Volume: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.a0006428
EISBN: 978-1-62708-192-4
... Influence on Low Pressure Steam Turbine Blade Erosion , Wear , Vol 303 ( Issues 1–2 ), June 2013 , p 83 – 86 10.1016/j.wear.2013.03.013 24. Hendricks et al. , “Sealing in Turbomachinery,” NASA/TM—2005-213633 25. Turnquist et al. , “Brush Seals for Improved Steam Turbine...
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004155
EISBN: 978-1-62708-184-9
... steel components. Solid-particle erosion is experienced in high-pressure and intermediate-pressure inlets (nozzle blocks, stationary and rotating blades, and valves). It is caused by exfoliation of steam-grown oxides in superheater tubes and in steam pipes. Fig. 9 Low-pressure turbine...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003570
EISBN: 978-1-62708-180-1
... of engineering systems: blades in the low-pressure ends of steam turbines where the steam is “wet,” and aircraft, missiles, and helicopter rotors flying at high speeds through rainstorms. Much research has been devoted to liquid-droplet erosion, and good summaries can be found in Ref 2 and 7...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006796
EISBN: 978-1-62708-295-2
... N. , Experimental Assessment of Droplet Impact Erosion Resistance of Steam Turbine Blade Materials , Wear , Vol 267 , 2009 , p 1605 – 1618 10.1016/j.wear.2009.06.012 27. Oka Y.I. and Miyata H. , Erosion Behaviour of Ceramic Bulk and Coating Materials Caused by Water...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003568
EISBN: 978-1-62708-180-1
... erosion are low-pressure turbine blades, low-temperature steam piping, and condenser or other heat-exchanger tubes that are subjected to direct impingement by wet steam. Liquid impingement erosion in tubing or piping is most likely when fluid velocities exceed 2.1 m/s (7 ft/s). Damage occurs first...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006795
EISBN: 978-1-62708-295-2
... by redirecting flow with baffles. Moisture erosion of low-pressure blades has been a problem throughout steam turbine history and remains a concern today. For example, Fig. 9 shows two portions of the leading edge of a blade from the last stage of a low-pressure steam turbine. Liquid impingement erosion...
Series: ASM Handbook
Volume: 5A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v05a.a0005738
EISBN: 978-1-62708-171-9
... ceramics ABRADABLE CLEARANCE-CONTROL COATINGS are successfully used today (2013) in aero-engine, industrial and steam turbine, and various other types of turbomachinery applications. In most types of turbines, it is necessary to leave clearances beyond the free ends of the blades and vanes to provide...
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004124
EISBN: 978-1-62708-184-9
... 0.1 2.5 0.7 0.004 B; 0.2 N N07214 0.5 nom 0.5 … … 16 nom 75 nom … … 0.2 … 3 nom 4.5 nom … … … 0.1 Zr; 0.01 B; 0.01 Y nom Source: Ref 61 Fig. 7 Failed shipboard turbine at the transition between blade and stem. See also Fig. 8 through 11. Fig. 8 Two...
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004158
EISBN: 978-1-62708-184-9
... of High Temperature Coatings for Combustion Turbine Blades , Proc. Steam and Combustion Turbine-Blading Conference and Workshop—1992 , TR-102061, Research Project 1856-09, Electric Power Research Institute, April 1993 , p 6–19 to 6-47 Selected References Selected References • Koul A.K...
Series: ASM Handbook
Volume: 5A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v05a.a0005734
EISBN: 978-1-62708-171-9
... erosion is caused by a shock wave that is induced by liquid droplet impact. This is a common occurrence for steam or water turbine blades or buckets as droplets form as the temperature and pressure change through the turbine. Eventually the shock fatigues the material until cracks form, which leads...
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004133
EISBN: 978-1-62708-184-9
.... As a rule, only the outer layer of the oxides detaches for ferritics, which can lead to small particle erosion of downstream components, including turbine blades. The thermal expansion mismatch between austenitic steels and their oxides is larger than for ferritic steels. So, the spallation of scales down...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003521
EISBN: 978-1-62708-180-1
.... It is also very useful to examine the failed component in undamaged areas. For example, turbine blade roots in steam turbines are not exposed to service environment steam and temperature as airfoils are. Comparison of properties between the root and airfoil can provide useful information about service...
Series: ASM Handbook
Volume: 5A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v05a.a0005708
EISBN: 978-1-62708-171-9
... such as stainless steels. Susceptible components are impellors, turbine blades, and casings ( Ref 5 ). Figure 3 shows runner blades that experienced cavitation erosion failure. Fig. 3 Turbine runner blades showing cavitation erosive failure. Source: Ref 5 In most situations, cavitation...
Book Chapter

Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004221
EISBN: 978-1-62708-184-9
... corrosion caused perforation at the exhaust valve port of this aluminum cylinder head. See the article “Engine Coolants and Coolant System Corrosion” in this Volume. Fig. 27 High-temperature oxidation of the tip of an industrial gas turbine blade. Below the tip, a coating is protecting the base...
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003631
EISBN: 978-1-62708-182-5
... suggests ways to design bearings to prevent cavitation. Water drop impingement erosion is similar to cavitation in that it causes pitting of surfaces and may involve a cavitation mechanism. Two areas are most notable for water drop impingement: steam turbines and helicopter rotor blades. In turbines...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003517
EISBN: 978-1-62708-180-1
...Abstract Abstract This article focuses on the life assessment methods for elevated-temperature failure mechanisms and metallurgical instabilities that reduce life or cause loss of function or operating time of high-temperature components, namely, gas turbine blade, and power plant piping...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006787
EISBN: 978-1-62708-295-2
.... Navy Fig. 31 Different views of possible calcium-magnesium-alumino-silicate attack on a shipboard turbine blade under the platform in a marine gas turbine engine. Source: Ref 235 . Courtesy of U.S. Navy Fig. 32 Effect of sea salt (SS) and sodium sulfate mixture on calcium-magnesium...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006756
EISBN: 978-1-62708-295-2
... with those of undamaged components. A review of processing, installation, and service environments can help to understand what properties should be typical. It is also useful to examine the failed component in undamaged areas. For example, the roots of turbine blades in a steam turbine are not exposed...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001816
EISBN: 978-1-62708-180-1
... in Steam Equipment Boilers and other types of steam-power-plant equipment are subject to a wide variety of failures involving one or more of several mechanisms. Most prominent among these mechanisms are corrosion, including pitting and erosion; mechanical-environment processes, including stress...