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iron-base superalloys

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Series: ASM Handbook
Volume: 4D
Publisher: ASM International
Published: 01 October 2014
DOI: 10.31399/asm.hb.v04d.a0005961
EISBN: 978-1-62708-168-9
... problems, and protective atmospheres used in heat treatment of iron-base precipitation-hardenable (PH) superalloys. It focuses on various factors to be considered in heat treating of PH stainless steels: cleaning prior to heat treatment, furnace atmospheres, time-temperature cycles, variations in cycles...
Series: ASM Handbook
Volume: 1
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v01.a0001050
EISBN: 978-1-62708-161-0
... of a shell mold for an air-cooled turbine blade casting. Source: Ref 5 Abstract Abstract The initial cast superalloy developments in the United States centered on cobalt-base materials. Nickel-base and nickel-iron-base superalloys owe their high-temperature strength potential to their gamma prime...
Series: ASM Handbook
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0000615
EISBN: 978-1-62708-181-8
...Abstract Abstract This article is an atlas of fractographs that helps in understanding the causes and mechanisms of fracture of iron-base superalloys and in identifying and interpreting the morphology of fracture surfaces. The fractographs illustrate the neutron irradiation effect, fracture...
Series: ASM Handbook
Volume: 1
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v01.a0001049
EISBN: 978-1-62708-161-0
... 2.8 … … … 0.04 0.015 0.10 1.5 Ta Waspaloy 58.0 19.5 13.5 4.3 … … 1.3 3.0 … … … 0.08 0.006 … … (a) Ref 2 (1984 data). Bal, balance, Source: Ref 1 Role of elements in superalloys Table 2 Role of elements in superalloys Effect Iron base Cobalt base...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003120
EISBN: 978-1-62708-199-3
...Abstract Abstract Superalloys are nickel, iron-nickel, and cobalt-base alloys generally used for high-temperature applications. Superalloys are used in aircraft, industrial, marine gas turbines, nuclear reactors, spacecraft structures, petrochemical production, orthopedic and dental prostheses...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003993
EISBN: 978-1-62708-185-6
... superalloys, namely, iron-nickel superalloys, nickel-base alloys, cobalt-base alloys, and powder alloys. The article discusses the microstructural mechanisms during hot deformation and presents processing maps for various superalloys. It concludes with a discussion on heat treatment of wrought heat-resistant...
Series: ASM Handbook
Volume: 2
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v02.a0001103
EISBN: 978-1-62708-162-7
..., physical, oxidation, and hot-corrosion properties. iron-base alloys mechanical alloying oxide dispersion-strengthened alloys mechanically alloyed commercial alloys nickel-base alloys superalloy powder MECHANICAL ALLOYING (MA) was originally developed for the manufacture of nickel-base...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003331
EISBN: 978-1-62708-176-4
... casting alloys 415 35 Alloy steels, cast; quenched and tempered 401 262 Rhodium 401 100 Iridium 351 200 Gray irons; cast 350 140 Ruthenium 350 200 Nickel-base superalloys 341 302 Titanium and its alloys 331 … Ductile (nodular) irons; cast 300 140 Hafnium 285...
Series: ASM Handbook
Volume: 4A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v04a.a0005775
EISBN: 978-1-62708-165-8
... 20% Ni Class III: austenitic stainless steels with 21 to 40% Ni and iron-base superalloys Class IV: nickel- and cobalt-base superalloys As a general rule, overall aluminum diffusion is slower as the nickel, chromium, and cobalt contents increase. Therefore, higher temperatures...
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
... are the major materials of construction for today's high-temperature gas turbine engines used for both commercial and military aircraft. Nickel-base superalloys, along with iron-base and cobalt-base superalloys, are used throughout the engines in wrought, cast, powder metallurgy (P/M), and cast single-crystal...
Series: ASM Handbook
Volume: 4E
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.hb.v04e.a0006265
EISBN: 978-1-62708-169-6
... derive their strength mostly from solid-solution alloying, work hardening, and precipitated phases. The principal strengthening precipitates are the Ni 3 Al gamma prime (γ′) and the Ni 3 Nb gamma double-prime (γ″) intermetallic phases that occur in iron-nickel- and nickel-base alloys. Carbides also may...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003148
EISBN: 978-1-62708-199-3
... the tendency for grain boundary carbide precipitation, thus reducing chromium depletion at the grain boundaries. Cobalt is also an important alloying element in some iron-base superalloys. For example, Haynes 556 (UNS R30556) is an Fe-Ni-Cr-Co used extensively in sulfur-bearing environments. The resistance...
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
..., blades, vanes, shrouds, and sometimes disks because of their high strength at high temperatures. Cobalt-base superalloys are typically used for vanes because of their good resistance to hot corrosion and good weldability. Iron-base superalloys are typically used for disks and lower-temperature blades...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003785
EISBN: 978-1-62708-177-1
... used for copper-base alloy weldments are similar to those used for wrought plate material of the same composition. Solidification structures in the welds of highly alloyed nickel-, cobalt-, and iron-base superalloys are usually discernible due to the segregation of one or more solute elements...
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
... are comparable, if the substrate is an iron-base alloy the exchange reaction Cr X 2 ( g ) + Fe ( s ) = Cr ( s ) + Fe X 2 ( g ) also occurs. The Fe X 2 (g) diffuses back into the pack where the reverse reaction leads to the deposition of Fe(s) on the particles...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005884
EISBN: 978-1-62708-167-2
... called Inconel 718 or simply Inconel. The latter names occur because the alloy was first developed by International Nickel and the Inconel designation is a registered trademark. Superalloys are normally nickel-base, although cobalt- and iron-base superalloys have also been developed...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003164
EISBN: 978-1-62708-199-3
... properties of the Fe 3 Al alloys. Table 4 lists several Fe 3 Al alloys that were recently developed. Tensile and creep properties of wrought Fe 3 Al alloys are compared with oxide dispersion strengthened (ODS) MA-956 iron-base superalloy in Fig. 14 . The tensile properties of Fe 3 Al alloys...
Series: ASM Handbook
Volume: 2
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v02.a0001072
EISBN: 978-1-62708-162-7
... requires high-molybdenum alloys. Neutral environments: organic acid salts (NaCl, bisulfates). Oxidizing environments: sulfuric acid (concentrated), phosphoric acid, nitric acid; nitric acid requires high-chromium alloys. Role of elements in iron-base and nickel-base superalloys Table 1 Role...
Series: ASM Handbook
Volume: 4E
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.hb.v04e.a0006261
EISBN: 978-1-62708-169-6
...) This hexagonal close-packed (D0 24 ) phase may form after extended exposure in iron-nickel-, cobalt-, and nickel-base superalloys with high titanium/aluminum ratios. It may form intergranularly in a cellular form or intragranularly as acicular platelets in a Widmanstätten pattern. Borides M 3 B 2 and M 5 B...
Series: ASM Handbook
Volume: 2
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v02.a0001106
EISBN: 978-1-62708-162-7
... manifolds C, Si (a) No (a) No Superalloys Nickel-base superalloys >35 HRC Inconel, René Waspalloy Cr, Co, Mo, W, Ti Yes No Yes No Cobalt-base superalloys >35 HRC Stellite, AiResist, Haynes Cr, W Yes No Yes No Iron-base superalloys >35 HRC A-286, Incoloy Cr...