1-20 of 60 Search Results for

Cast superalloys

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
Image
Published: 30 August 2021
Fig. 2 Deformation mechanism map for the cast nickel-base superalloy MAR-M200 with a grain size of 100 μm. Source: Ref 3 More
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001827
EISBN: 978-1-62708-241-9
... of high-temperature oxidation on the hot corrosion process. Preventative measures are also discussed. gas turbine thermal fatigue cracking hot corrosion superalloys corrosion cavities spark optical emission spectrometry operating temperature GTD 111 (cast nickel-base superalloy) FSX 414...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.marine.c9001657
EISBN: 978-1-62708-227-3
... Abstract The circumstances surrounding the in-service failure of a cast Ni-base superalloy (Alloy 713LC) second stage turbine blade and a cast and coated Co-base superalloy (MAR-M302) first stage air-cooled vane in two turbine engines used for marine application are described. An overview...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001758
EISBN: 978-1-62708-241-9
... at carbides and other microconstituents, especially in single crystal castings that do not possess grain boundaries. gas turbine engine components creep deformation overheating nickel-base superalloy interdendritic stress-rupture fracture stress-rupture testing stress-rupture life Cast nickel...
Image
Published: 15 January 2021
Fig. 11 Fracture surfaces of a nickel-base superalloy turbine blade. (a) Secondary electron image of interdendritic stress-rupture fracture at the trailing edge (TE) of single-crystal turbine blade casting showing creep voids on the fracture surface. (b) Scanning electron microscopy More
Image
Published: 15 January 2021
Fig. 6 (a) Brittle fracture of cast aluminum tensile bar. (b) Brittle fracture of stainless steel. (c) Intergranular fracture of a superalloy. (d) Scanning electron microscope image of intergranular fracture. (e) Scanning electron microscope image of cleavage More
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c0091761
EISBN: 978-1-62708-229-7
... deg F). Additionally, it was suggested that fuel delivery, handling, and treatment be high quality, to maintain fuel contamination within design limits, and inlet air filtration must be designed for the coastal site. Also, changing the bucket tip by increasing its thickness and changing the casting...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c0090181
EISBN: 978-1-62708-229-7
... Abstract Cracking in gas turbine blades was found to initiate from a mechanism of low-cycle fatigue (LCF). LCF is induced during thermal loading cycles in gas turbines. However, metallography of two cracked blades revealed a change in microstructure at as-cast surfaces for depths up to 0.41 mm...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c9001681
EISBN: 978-1-62708-234-1
... Abstract A microstructural analysis has been made of a burner nozzle removed from service in a coal gasification plant. The nozzle was a casting of a Co-29wt%Cr-19wt%Fe alloy. Extensive hot corrosion had occurred on the surface. There was penetration along grain boundaries, and corrosion...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001829
EISBN: 978-1-62708-241-9
... carbides. Coarse carbides formed during casting are unstable in an operation environment, so they may dissolve or generate secondary fine carbides. The size, amount, and distribution of secondary fine carbides influence the mechanical properties such as strength, ductility, creep, and fatigue. The x-ray...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001602
EISBN: 978-1-62708-229-7
... Requirements Investment Cast W501B/B6 Turbine Blades , TIS 1004 , Tusco Corporation , 1994 , p. 2 . 9. Sims C.T. , Stoloff N.S. , and Hagel W.C. : Superalloys II, High -Temperature Materials for Aerospace and Industrial Power , 1987 , pp. 423–4 , 433 . 10. Leverant G.R...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006760
EISBN: 978-1-62708-295-2
... dimples Brittle Failures Brittle failures do not show necking or elongation. The fracture surface can be transgranular/cleavage or intergranular, depending on the material and conditions ( Fig. 6 ). Fig. 6 (a) Brittle fracture of cast aluminum tensile bar. (b) Brittle fracture...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006824
EISBN: 978-1-62708-329-4
.... For each alloy, the creep mechanism can be predicted by using a deformation mechanism map ( Fig. 2 ). Fig. 2 Deformation mechanism map for the cast nickel-base superalloy MAR-M200 with a grain size of 100 μm. Source: Ref 3 The formation of cavities (voids) on the grain boundaries during...
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
... to nitridation attack. Titanium and aluminum are also susceptible to nitridation attack ( Ref 21 ). Carbon-Nitrogen Interactions This type of high-temperature interaction is found in centrifugally cast furnace tubes made of HK-40 (26Cr-20Ni) and HL-40 (30Cr-20Ni) alloys used for many years in ethylene...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001357
EISBN: 978-1-62708-215-0
... the distribution of carbides on grain boundaries and inside them, as well as of γ′ precipitates. Figure 5 , representing a section parallel to the crack plane, shows the characteristic dendritic microstructure produced by the investment casting method, with a grain size on the order of 0.5 to 1.0 mm...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006781
EISBN: 978-1-62708-295-2
... , respectively. Fatigue case studies, in which practical systems are analyzed from a fracture mechanics perspective, are also presented in Ref 26 . Using Finite-Element Analysis Case Study: Prediction of Residual Life in a Turbine Casing. Casings for a ship’s service turbine generator (SSTG) are cast...
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
..., and nozzles Alloy designation Description Alloys for blades and buckets Udimet 520 Wrought nickel-base alloy Udimet 500 Cast nickel-base alloy IN 738 Conventionally cast nickel-base alloy, high carbon IN 738LC Conventionally cast nickel-base alloy, low carbon DS CM 247 LC...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006780
EISBN: 978-1-62708-295-2
... may not exhibit all three stages of plastic extension. For example, at high stresses or temperatures, the absence of primary creep is not uncommon, with secondary creep or, in extreme cases, tertiary creep following immediately upon loading. At the other extreme, notably in cast alloys, no tertiary...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006838
EISBN: 978-1-62708-329-4
... main types of metal AM processes: powder-bed fusion (PBF) and directed-energy deposition (DED). These two types of metal AM technology are fusion-based processes with similarities to fusion welding ( Ref 9 ) or, in some cases, a cross between welding and cast product ( Ref 10 ). The metallurgical...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003555
EISBN: 978-1-62708-180-1
... such environments are oxidizing. Increasing iron in the alloy increases its susceptibility to nitridation attack. Titanium and aluminum are also detrimental to nitridation attack ( Ref 18 ). Carbon-Nitrogen Interaction This type of high-temperature interaction can be found in centrifugally cast furnace tubes...