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aircraft turbine blades

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Published: 01 January 1990
Fig. 3 The evolution of the processing of nickel-base superalloy turbine blades. (a) From left, equiaxed, directionally solidified, and single-crystal blades. (b) An exposed view of the internal cooling passages of an aircraft turbine blade. Source: Ref 5 More
Image
Published: 01 August 2018
Fig. 30 Digital radiograph of an aircraft engine turbine blade (nickel alloy precision casting) from an industrial computed tomography system More
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
... of the distinctions between the different forms of erosion. It discusses steam turbine blade erosion, aircraft rain erosion, and rain erosion of wind turbine blades. The article describes the mechanisms of liquid impact erosion and time dependence of erosion rate. It reviews critical empirical observations regarding...
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: 1
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v01.a0001051
EISBN: 978-1-62708-161-0
... superalloys aircraft turbine blades directional solidification casting THE PRIMARY GOALS in the continuing development of the aircraft gas turbine are increased operating temperatures and improved efficiencies. A more efficient turbine is required to achieve lower fuel consumption. Higher turbine inlet...
Image
Published: 01 December 2008
Fig. 5 Some aircraft and aerospace applications for investment castings. (a) Single-crystal turbine blades investment cast using complex ceramic cores. Courtesy of Pratt and Whitney Aircraft. (b) 17-4-PH stainless steel fan exit case; weight: 96 kg (212 lb). Courtesy of Precision Castparts More
Image
Published: 31 October 2011
Fig. 27 Laser shock peening reduces residual stress much more efficiently than traditional shot-peening techniques. A titanium fan blade damaged by a foreign object (right) has 15 to 20 ksia high-cycle fatigue strength. A typical aircraft turbine engine runs at approximately 35 ksia. The blade More
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004131
EISBN: 978-1-62708-184-9
... limits in the root section of a compressor blade Surface oxidation reduces the load-bearing capacity of turbine blades and vanes. In marine environments hot corrosion may rapidly destroy airfoils by surface melting, as evidenced by surface rippling ( Fig. 8a ) and metallographic section ( Fig. 8b...
Image
Published: 01 December 2008
Fig. 1 Comparison of equiaxed (left), directionally solidified (center), and single-crystal (right) nickel-base alloy turbine blades for an aircraft engine. Courtesy of Howmet Corporation, Whitehall Casting Division More
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
... from high-temperature corrosion and in maintaining mechanical strength at these elevated temperatures. The tip of an industrial gas turbine blade ( Fig. 27 ) is subjected to a combination of environmental and mechanical stress. High-temperature oxidation can be protective or not, depending on the oxide...
Image
Published: 31 October 2011
Fig. 23 Laser-drilling applications from macro to micro. (a) Turbine engine blades made of nickel alloy need drilled holes that serve as air-cooling channels to maintain their temperatures below melting temperature while in operation. Each hole is approximately 0.5 mm (0.02 in.) in diameter More
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003485
EISBN: 978-1-62708-195-5
... turbine engines. In one case, such efforts are still underway, and it is not certain whether a successful insertion will result. Nonetheless, fiber-reinforced titanium has been specified as bill of material in an actuator piston rod for a nozzle actuator in the F119 engine for the F-22 aircraft...
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
... Abstract High-temperature exposure of materials occurs in many applications such as power plants (coal, oil, natural gas, and nuclear), land-based gas turbine and diesel engines, gas turbine engines for aircraft, marine gas turbine engines for shipboard use, waste incineration, high-temperature...
Series: ASM Handbook
Volume: 1
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v01.a0001052
EISBN: 978-1-62708-161-0
... in gas turbine engines or that are emerging as replacements because of the promise of increased operating temperatures and higher efficiencies for the aircraft of the future. These alloys are used in a variety of forms, such as turbine blades, vanes, and disks; compressor components; and ducting...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003512
EISBN: 978-1-62708-180-1
... of these criteria can constitute failure. For example, a steam turbine blade whose tip has eroded affects turbine efficiency and hence affects the economics of operation adversely. The blade should therefore be replaced even though it can continue to operate. Component failures are thus defined in terms...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006094
EISBN: 978-1-62708-175-7
... prealloyed powder superalloys THE TERM SUPERALLOY is used to describe those materials with high strength at high temperatures that are used primarily in turbine engines for aircraft and power generation. Superalloys are predominantly nickel-base alloys that are strengthened by solid-solution elements...
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
... circulation through the turbine. Forms of Corrosion General corrosion and pitting can result from the accumulation of water on compressor blades, stators and disks. If corrosion is extensive, parts may need to be replaced. Pitting on blades and vanes can increase the likelihood of fatigue crack...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006821
EISBN: 978-1-62708-329-4
... Handbook , 2003. Case Study 5: Failure Analysis of Engine Compressor Rotors Two aircraft engine compressor rotors sustained damage during operation. Blades from both rotors were found sheared off, and several blades were lifted from the dovetail portion of the drum. In one of the rotors, all...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006802
EISBN: 978-1-62708-329-4
.... The industrial definition of failure is often quite different from a textbook definition. A component, in practice, is deemed to have failed when it can no longer perform its intended function safely, reliably, and economically. Any one of these criteria can constitute failure. For example, a steam turbine blade...
Book Chapter

Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003685
EISBN: 978-1-62708-182-5
... coatings for aircraft turbines, marine turbines, and industrial turbines. physical vapor deposition chemical vapor deposition sputtering evaporation ion plating graphite aluminum coating steel alloy coating gas turbines aircraft turbines marine turbines industrial turbines VAPOR...