1-20 of 278 Search Results for

cobalt-base 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: 01 December 2004
Fig. 6 Cast dendritic structure of MAR-M 509 cobalt-base superalloy revealed using (a) 15 mL HCl, 10 mL acetic acid, and 10 mL HNO 3 , (b) the Lucas electrolytic reagent (2 V dc, 20 s), and (c) Beraha's tint etch (50 mL HCl, 50 mL water, 0.8 g K 2 S 2 O 5 , 4 g NH 4 F·HF More
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003771
EISBN: 978-1-62708-177-1
... of cobalt alloys in cast, wrought, and powder metal forms, including magnetic alloys as well as several cobalt-base superalloys. cobalt alloys Hastelloy Haynes alloys metallographic preparation metallography metallurgy microstructure COBALT is used as an alloying element in alloys...
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: 4E
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.hb.v04e.a0006267
EISBN: 978-1-62708-169-6
... scales at elevated temperatures. Strengthening of cobalt-base alloys is accomplished by solid-solution alloying (e.g., molybdenum, tungsten, tantalum, and niobium) in combination with carbon to promote carbide precipitation. Compared to the wrought alloys, cast cobalt-base superalloys...
Image
Published: 01 December 2008
Fig. 4 Typical vacuum induction melting protocol for nickel- and cobalt-base superalloys More
Image
Published: 01 January 2005
Fig. 11 Typical Gleeble curve of reduction area versus test temperature for a cobalt-base superalloy. More
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
... methods ( Table 1 ) are those based on aluminum (aluminizing), chromium (chromizing), and silicon (siliconizing). Substrate materials include nickel- and cobalt-base superalloys, steels (including carbon, alloy, and stainless steels), and refractory metals and alloys. Multicomponent pack cementation...
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
...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 content. For polycrystalline superalloy components, high-temperature...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003737
EISBN: 978-1-62708-177-1
... to 90 min at 100 °C (212 °F) 4. HCl saturated with FeCl 3 For cobalt-base superalloys; add 5% HNO 3 before use at room temperature; clean surface by dipping in 50% aqueous HCl 5. (a) 21 mL H 2 SO 4 , 15 mL HCl, 21 mL HNO 3 , 21 mL HF, 22 mL H 2 O (b) 40 mL 20% aqueous CuCl 2 (copper chloride...
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
... Superalloys 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...
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
...Abstract Abstract This article focuses on the properties of conventional wrought superalloys based on nickel, iron, and cobalt, as well as on the properties of alloys produced from powder. The powder metallurgy (P/M) category includes alloys that were originally developed as casting alloys; new...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003218
EISBN: 978-1-62708-199-3
...) <20 Low-carbon steels, nickel- and cobalt-base superalloys Diffused coating for oxidation resistance at elevated temperatures Siliconizing by chemical vapor deposition Diffused silicon 925–1040 (1700–1900) 25 μm–1 mm (1–40 mils) 30–50 Low-carbon steels For corrosion and wear 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 Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003148
EISBN: 978-1-62708-199-3
... in Superalloys In nickel-base superalloys, cobalt (which is presently typically in the range 10 to 15 wt%) provides solid-solution strengthening and decreases the solubility of aluminum and titanium, thereby increasing the volume fracture of γ′ precipitate. Cobalt in nickel-base superalloys also reduces...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001453
EISBN: 978-1-62708-173-3
...). This article discusses primarily nickel- and cobalt-base alloys. Superalloys can also be subdivided (according to manufacturing technology) into two categories: conventional cast and wrought alloys and powder metallurgy (P/M) products. Powder metallurgy products may be produced in conventional alloy...
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
... (nodular) irons, cast 1034 150 276 40 Copper casting alloys (a) 965 140 62 9 Stainless steels, standard austenitic grades; wrought, cold worked 965 140 517 75 Niobium and its alloys 931 135 241 35 Iron-base superalloys; cast, wrought 924 134 276 40 Cobalt-base...
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
...- and cobalt-base superalloys, steels (including carbon, alloy, and stainless steels), and refractory metals and alloys. This article is divided into two major Sections. The first Section describes the widespread use of diffusion coatings for elevated-temperature protection of turbine components...
Series: ASM Handbook
Volume: 2
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v02.a0001073
EISBN: 978-1-62708-162-7
... (2050) Uses of Cobalt As well as forming the basis of the cobalt-base alloys discussed in this article, cobalt is also an important ingredient in other materials: Paint pigments Nickel-base superalloys Cemented carbides and tool steels Magnetic materials Artificial γ-ray...
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
... “Heat Treatment of High-Alloy Nickel-Cobalt Steels” in this Volume). Another closely related class of alloys include iron-base PH superalloys, which evolved from austenitic stainless steels. Iron-base superalloys are strengthened by either solid-solution hardening or precipitation hardening. Thus...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005335
EISBN: 978-1-62708-187-0
... not form carbides. Aluminum and Titanium Aluminum and titanium are less-often employed for strengthening in cobalt alloys than they are in nickel alloys. The coherent gamma-prime strengthening phase (Ni 3 Al, Ti) found in nickel-base superalloys does not have a counterpart in cobalt-base alloys...