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wrought cobalt-based superalloys

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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
.... 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 are characterized by higher contents of high-melting metals...
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
... 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 for various applications...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003120
EISBN: 978-1-62708-199-3
... on the mechanical properties and chemical composition of nickel, iron, and cobalt-base superalloys in both the cast and wrought forms. chemical composition cobalt-base superalloys environmental factors high-temperature applications iron-base superalloys mechanical properties metal processing...
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 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 the tendency...
Image
Published: 01 December 1998
Fig. 2 Typical operating microstructures of representative superalloys. (a) Cast cobalt-base alloy. 250×. (b) Cast nickel-base alloy. 100×. (c) Wrought (left, 3300×) and cast (right, 5000×) nickel-base alloys. (d) Two wrought iron-nickel-base alloys (left, 17,000×; right, 3300×). Note script More
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 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 alloy...
Image
Published: 01 January 1990
Fig. 8 1000-h stress-rupture curves of wrought cobalt-base (Haynes 188 and L-605) and wrought iron-base superalloys More
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
... Abstract This article discusses the specimen preparation of three types of cast and wrought heat-resistant alloys: iron-base, nickel-base, and cobalt-base. Specimen preparation involves sectioning, mounting, grinding, polishing, and etching. The article illustrates the microstructural...
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.a0001073
EISBN: 978-1-62708-162-7
... is also used as an alloying element in many nickel-base high-temperature alloys. The various types of iron-base, nickel-base, and cobalt-base alloys for high-temperature application are discussed in the article “Wrought and P/M Superalloys” in Properties and Selection: Irons, Steels, and High...
Series: ASM Handbook
Volume: 4E
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.hb.v04e.a0006266
EISBN: 978-1-62708-169-6
...-base superalloys are an extension of stainless steel technology and generally are wrought. The cobalt-base and nickel-base superalloys may be wrought or cast, depending on the application/composition involved. High temperature can be considered to be approximately 815 °C (1500 °F) and up...
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...
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.a0001050
EISBN: 978-1-62708-161-0
... 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 strength...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006094
EISBN: 978-1-62708-175-7
... Abstract Superalloys are predominantly nickel-base alloys that are strengthened by solid-solution elements including molybdenum, tungsten, cobalt, and by precipitation of a Ni 3 (Al, Ti) type compound designated as gamma prime and/or a metastable Ni 3 Nb precipitate designated as gamma double...
Series: ASM Handbook
Volume: 23
Publisher: ASM International
Published: 01 June 2012
DOI: 10.31399/asm.hb.v23.a0005669
EISBN: 978-1-62708-198-6
... microstructure orthopaedic applications solidification strengthening wear wrought cobalt alloys wrought cobalt-chromium-molybdenum alloys COBALT-BASE ALLOYS with significant refractory metal element additions as well as small amounts of nickel, carbon, and other minor constituents were developed...
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: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001430
EISBN: 978-1-62708-173-3
... the ductility of a welded structure. A postweld heat treatment is recommended, especially if the cold forming of a weldment after welding is a required part of the fabrication sequence. Tensile properties of welded cobalt-base corrosion-resistant alloy UNS R31233 relative to wrought and cast products at room...
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
... 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 compositions...
Series: ASM Handbook
Volume: 4E
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.hb.v04e.a0006274
EISBN: 978-1-62708-169-6
..., cobalt alloys, zinc alloys, and heat treatable silver alloys, gold alloys, lead alloys, and tin alloys. It also provides a detailed discussion on the effects due to precipitation and transformation processes in these non-ferrous alloys. aluminum alloys copper copper alloys heat treatment...