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Gas turbine engines

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Image
Published: 01 January 1997
Fig. 8 Gas turbine engine and components. Scroll and rotor are made from structural ceramics. Courtesy of Allison Engine Company More
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: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006787
EISBN: 978-1-62708-295-2
... failures, molten salts for energy storage, and degradation and failures in gas turbines. The article describes the effects of environment on aero gas turbine engines and provides an overview of aging, diffusion, and interdiffusion phenomena. It also discusses the processes involved in high-temperature...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003170
EISBN: 978-1-62708-199-3
..., steering and suspension components, etc.), prosthetics, and gas turbine engine hardware. This introduction explains the steps involved in making a casting using a simplified flow diagram, and discusses the ferrous and nonferrous alloys used for metal casting. casting alloys ferrous alloys metal...
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
.... The article presents a list of several superalloys that have been used 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. It concentrates on the objectives, results, and methodology...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003140
EISBN: 978-1-62708-199-3
... Abstract Titanium and its alloys are used in various applications owing to its high strength, stiffness, good toughness, low density, and good corrosion resistance. This article discusses the applications of titanium and titanium alloys in gas turbine engine components, aerospace pressure...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003143
EISBN: 978-1-62708-199-3
..., precautions in use, and general corrosion behavior of each. The applications of titanium alloys include aerospace, gas turbine engines and prostheses. Further, the article graphically presents a comparative study of fatigue, creep and tensile properties of various titanium alloys. aerospace applications...
Series: ASM Handbook
Volume: 20
Publisher: ASM International
Published: 01 January 1997
DOI: 10.31399/asm.hb.v20.a0002473
EISBN: 978-1-62708-194-8
... corrosion of superalloys and airfoil degradation due to deposits resulting from ingested particles or sand. The article concludes with a discussion on the limitations of testing techniques and life prediction. airfoil degradation ceramics corrosion resistance gas turbine engine oxidation...
Image
Published: 01 August 2013
Fig. 9 Evolution of turbine entry temperature (TET) for aero-engine gas turbines. A high TET is very beneficial for engine overall efficiency. Every 100 °C (180 °F) plus in TET improves efficiency by 2%. TETs of modern engines have surpassed the melting point of hot section component metals More
Image
Published: 15 January 2021
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 More
Image
Published: 01 January 2002
blades (B) with significant airfoil damage from the overtemperature condition, which had a detrimental effect on their microstructures. The fourth-stage blades (C) ruptured as a result of lower fracture toughness and creep resistance, which is caused by elevated-temperature operation in gas turbine More
Image
Published: 01 November 1995
Fig. 18 Duty cycles and lifetime requirements for different types of gas turbine engines. Lifetime is given in hours. More
Image
Published: 01 November 1995
Fig. 20 Cutaway view of the Garrett AGT101 ceramic gas turbine test engine More
Image
Published: 01 January 2001
Fig. 5 Fan exit guide vane blank (top), showing the high quality of the as-extruded product and the double-hollow construction. Below is an assembled fan exit guide vane mounted in the endcap. This component is used in Pratt & Whitney 4084, 4090, and 4098 gas turbine engines. Component More
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005265
EISBN: 978-1-62708-187-0
... produced by this process are used in gas turbine engines. Thin-wall components (0.5 mm, or 0.02 in.) previously made as weldments can be produced, thus enabling design freedom for shaped castings that maximize heat transfer, ease assembly, and reduce thermal fatigue. These design improvements often enable...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003061
EISBN: 978-1-62708-200-6
... and valve components, rolling elements and bearings, paper and wire manufacturing, biomedical implants, heat exchangers, adiabatic diesel engines, advanced gas turbines, and aerospace applications. advanced ceramics aerospace applications mineral processing equipment structural applications...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003060
EISBN: 978-1-62708-200-6
... Figure 8 depicts the general arrangement of the scroll assembly for gas turbine engines. The basis for establishing design acceptability was three-dimensional finite-element analysis of each component of the assembly. This analysis was used to calculate temperatures, stresses, and failure probabilities...
Series: ASM Handbook
Volume: 5A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v05a.a0005737
EISBN: 978-1-62708-171-9
... airfoils. Design requirements are reviewed and compared between aerospace and power generation coatings. Application process improvement areas are also discussed as a method of reducing component cost. aerospace engines combustors gas turbines high-power turbine blades high-pressure compressors...
Book Chapter

Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001293
EISBN: 978-1-62708-170-2
... Abstract This article describes the widespread use of diffusion coatings for elevated-temperature protection of the turbine components for aircraft engines and gas turbines. The principles of pack diffusion coating, namely, aluminizing, chromizing, and siliconizing, are discussed. The article...
Series: ASM Handbook
Volume: 5A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v05a.a0005733
EISBN: 978-1-62708-171-9
... Coatings and Environmental Barrier Coatings Currently, it is impossible to manufacture effective gas turbine engines without protective coatings applied in different zones. Among the most critical zones of a gas turbine engine are the hot zones, which typically include blades, vanes, combustion...