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Turbine blades

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270087
EISBN: 978-1-62708-301-0
...Abstract Abstract A turbine blade in an aircraft engine failed, fracturing at the root above the fir tree region. Fractography indicated that a fatigue crack initiated at the trailing edge of the blade and the final fracture occurred when the crack reached critical length. Although the exact...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270135
EISBN: 978-1-62708-301-0
...Abstract Abstract A second-stage turbine blade in an aircraft engine failed in service, fracturing along a path through the shroud hole. Cracks were also found in the shroud holes of the two adjacent blades. Based on the results of visual examination and SEM fractography, investigators...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270138
EISBN: 978-1-62708-301-0
...Abstract Abstract A high-pressure turbine blade in an aircraft engine failed prematurely, fracturing close to the root. Visual examination revealed significant plastic deformation on the leading edge of the blade, blocky cleavage on the trailing edge, and a region covered with fissures...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270067
EISBN: 978-1-62708-301-0
...Abstract Abstract A low-pressure turbine rotor blade failed in service, causing extensive engine damage. A section of the blade broke off around 25 mm from the root platform, producing a flat fracture surface that appeared smooth on one end and grainy elsewhere. Based on their examination...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270182
EISBN: 978-1-62708-301-0
...Abstract Abstract A turbine in a fertilizer plant began to vibrate and was shut down to investigate the problem. A first stage rotor blade was found fractured and was removed along with several other blades for further examination. Based on their observations and testing, investigators...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270143
EISBN: 978-1-62708-301-0
...Abstract Abstract A low-pressure turbine rotor blade failed during a test run, causing extensive damage to an aircraft engine. Visual examination showed that the nickel-base superalloy blade broke above the root platform in the airfoil section, leaving a fracture surface with two distinct...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280323
EISBN: 978-1-62708-267-9
... are exposed to extremely high temperatures in furnace and petrochemical applications, but the loads are not high. Alloys for gas turbine applications generally are exposed to the most demanding combinations of high temperature and stress. Wrought alloys have been used in the past for turbine blades and vanes...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1989
DOI: 10.31399/asm.tb.dmlahtc.t60490265
EISBN: 978-1-62708-340-9
... the energy conversion. Because the steam’s temperature and pressure decrease and the volume increases continuously by expansion through the turbine, the length of the blades increases progressively from the inlet to the outlet end of the turbine. A typical plant may have a high-pressure (HP) turbine...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280079
EISBN: 978-1-62708-267-9
... into the wax injection die, which contains the external pattern of the desired component (e.g., turbine blade), and then wax fills the die, encapsulating the core with wax. The result is a wax pattern that, at the wax interfaces with the air or the ceramic core, has the form desired for the finished part...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270005
EISBN: 978-1-62708-301-0
... shaft locking mechanisms turbine blades IT IS NOW a well-recognized adage that failures do not just happen; they are caused. There are compelling reasons for investigating failures. Unless the true cause of the failure is discovered, no remedial action is possible to prevent its recurrence...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.sap.t53000001
EISBN: 978-1-62708-313-3
...) was chosen as the very first turbine blade material. Most of the early nickel-iron- and cobalt-base alloys were strengthened by carbide dispersions, although Nimonic 80 did exhibit some precipitation hardening due to the formation of a γ′-Ni 3 Al phase. In the late 1940s, molybdenum was introduced...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1989
DOI: 10.31399/asm.tb.dmlahtc.t60490415
EISBN: 978-1-62708-340-9
... and corresponding blade-material developments ( Ref 4 and 5 ). Fig. 9.1. Typical configuration of a combustion turbine (General Electric Model MS7001F) ( Ref 1 ; courtesy of G.A. Cincotta, General Electric Co., Schenectady, NY). Fig. 9.3. Turbine vanes ( Ref 5 ). Fig. 9.4. W-501...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280339
EISBN: 978-1-62708-267-9
...) burner cans and combustors, (c) turbine vanes, and (d) turbine blades Fig. 15.2 Temperature-strength capability of selected nickel-base superalloys as a function of year of availability (about 1950–1990) Charts such as in Figs. 15.1 and 15.2 are the consequence of a need to put...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.fdmht.t52060231
EISBN: 978-1-62708-343-0
... Halford G.R. , Low-Cycle Thermal Fatigue , Thermal Stresses II , Hetnarski R.B. , Ed., Elsevier Science Publishers B. V ., 1987 , p 329 – 428 10.17 McKnight R.L. Laflen J.H. Halford G.R. and Kaufman A. , Turbine Blade Nonlinear Structural and Life Analysis...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 November 2013
DOI: 10.31399/asm.tb.uhcf3.t53630237
EISBN: 978-1-62708-270-9
... attack of René 77 nickel-base alloy turbine blades. (a) A land-based, first-stage turbine blade. Notice the deposit buildup and flaking and splitting of the leading edge. (b) Stationary vanes. (c) A land-based, first-stage gas turbine blade that had type 2 hot-corrosion attack. (d) A metallurgical cross...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.sap.t53000117
EISBN: 978-1-62708-313-3
...-9DL Turbine and super-charger wheels, industrial gas turbine blades, casings, afterburner components Low cost. High strength, corrosion, and oxidation resistance up to 677 °C (1250 °F) A-286 GTE blades, vanes, shafts, tail cones, afterburners, springs and fasteners, automotive components Good...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270191
EISBN: 978-1-62708-301-0
... Examination of General Physical Features Testing Procedure and Results A gas turbine unit tripped following the failure of the turbine rotor. The damage was maximum in the 18th/19th-stage seal land region of the compressor, with the 19th-stage blades sheared off. Metallurgical investigations were...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.sap.t53000009
EISBN: 978-1-62708-313-3
..., making them ideal for the most demanding applications, such as turbine blades. Wrought nickel-base superalloys are often used where high toughness is required, such as turbine discs and forged blades. Examples of the wrought alloys include Udimet 700, Rene 41, Waspaloy, N-901, and Udimet 630. Castings...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.9781627083010
EISBN: 978-1-62708-301-0
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280287
EISBN: 978-1-62708-267-9
... illustrating the strain-tolerant columnar grain ZrO 2 microstructure of EBPVD zirconia thermal barrier coatings Fig. 13.14 Effect of a nickel-aluminide-type coating on the hot corrosion resistance of an IN-713 nickel-base superalloy turbine blade compared with an uncoated blade. (a) Uncoated blade...