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Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003148
EISBN: 978-1-62708-199-3
... be generally described as wear resistant, corrosion resistant, and heat resistant (strong even at high temperatures). The single largest use for cobalt-base alloys is in the area of wear-resistant components/applications. In heat-resistant applications, cobalt is more widely used as an alloying element...
Book Chapter

By Paul Crook
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
... Abstract This article provides a general overview of physical and mechanical properties, alloy compositions, applications, and product forms of cobalt-base alloys as wear-resistant, corrosion-resistant, and/or heat-resistant materials. The discussion is largely focused on cobalt-base alloys...
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...
Book Chapter

By D.L. Klarstrom
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
..., heat-resistant cobalt alloys, and cobalt-base corrosion-resistant alloys. The article also describes the heat treatments such as annealing and aging, for these alloys. cobalt-base alloys cobalt-base corrosion-resistant alloys heat treatment thermal resistance wear-resistant cobalt alloys...
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...
Book Chapter

By Steve Sikkenga
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
... coatings continuous casting gas turbines heat treatment hot isostatic pressing microstructure orthopedic implants phases physical metallurgy crystallography foundry methods argon-oxygen decarburization cobalt alloy castings wear-resistant alloys corrosion-resistant alloys COBALT-BASE...
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
... are registered trademarks of Deloro Stellite, Inc.; Tantung is a registered trademark of Asteg Sales Pty Ltd. Compositions of various heat-resistant cobalt-base alloys Table 1b Compositions of various heat-resistant cobalt-base alloys Alloy tradename (a) UNS No. Nominal composition, wt...
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
... Abstract This article focuses primarily on the various steps involved in the brazing of heat-resistant alloys (nickel- and cobalt-base alloys). The major steps include the selection of brazing filler metals, surface cleaning and preparation, brazing processes and their corresponding atmospheres...
Book Chapter

By Joseph R. Stephens
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
... was to increase the high-temperature strength of the nickel-base alloy. By the 1930s there were two iron-baseheat-resisting alloys” containing either tungsten or molybdenum additions, and the use of these two metals was widely accepted in cobalt-base alloys. In the early 1950s, alloys containing about 5 wt% Mo...
Book Chapter

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
... ) 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 coatings have been...
Book Chapter

By S. Alec Watson
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001258
EISBN: 978-1-62708-170-2
... of the alloy after the heat treatment is 223 HV, compared with 55 HV for similarly treated plain nickel ( Ref 21 , 25 ). Alloys containing 19% Co or 20% Fe in addition to chromium are produced by codepositing chromium carbide from nickel-cobalt or nickel-iron base solutions and heat treating ( Ref 21...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001422
EISBN: 978-1-62708-173-3
... 38.0 15.0 41.0 0.1 1.4 … 3.0 0.7 0.04 … Incoloy 909 38 … 13 42 … 1.5 … 4.7 0.03 0.01 0.4 Si Incoloy 925 44 21 … 28 3 2.1 … … 0.3 0.01 1.8 Cu Solid-solution cobalt-base alloys Haynes 25 (-605) 10.0 20.0 50.0 3.0 … … 15.0 … … 0.10 1.5 Mn Haynes...
Book Chapter

By Alan M. Bayer, Bruce A. Becherer
Book: Machining
Series: ASM Handbook
Volume: 16
Publisher: ASM International
Published: 01 January 1989
DOI: 10.31399/asm.hb.v16.a0002121
EISBN: 978-1-62708-188-7
... steels, see Fig. 1 in the article “Cast Cobalt Alloys” in this Volume. Fig. 1 Comparison of the hot hardness of cobalt-base (M33, M36, M4, and T15) type versus noncobalt-base (M1, M2, M4, M7, and T1) type high-speed tool steels Wear Resistance The third component of cutting ability...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003152
EISBN: 978-1-62708-199-3
... 5170 750 558 81 13 5.8 6.8 50 (a) Based on a value of 100 for the most abrasion-resistant material The commercially significant alloys contain cobalt in the range of 3 to 25 wt%. For machining purposes, alloys with 3 to 12% Co and carbide grain sizes from 0.5 to more than 5 μm...
Series: ASM Handbook
Volume: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.a0006390
EISBN: 978-1-62708-192-4
...-temperature (heat-resistant) cobalt-base alloys Alloy 4 R30404 bal 30 14 ≤1 0.6 ≤3 ≤3 ≤2 ≤1 … Alloy 4 is a machinable casting alloy with good high-temperature strength. It is used for hot pressing dies and hot extrusion dies, especially for Cu and Al alloys. Alloy 25 (L605) R30605 bal 20...
Book Chapter

By Matthew J. Donachie, Stephen J. Donachie
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 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...
Book Chapter

By Robert Pilliar, Scott D. Ramsay
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
... in the 1930s to their preferred use over stainless steel for making removable partial denture frameworks in dentistry as low-cost alternatives to gold-base alloys ( Ref 2 ). This represented one of the earliest uses of a cobalt-chromium alloy as a biomaterial. The excellent corrosion resistance displayed...
Book Chapter

By N.S. Stoloff
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
... processes wrought nickel alloys SUPERALLOYS are heat-resisting alloys based on nickel, nickel-iron, or cobalt that exhibit a combination of mechanical strength and resistance to surface degradation. Superalloys are primarily used in gas turbines, coal conversion plants, and chemical process industries...
Book Chapter

By Phillip D. Stapleton
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001267
EISBN: 978-1-62708-170-2
... of magnetic and wear applications. These coatings are produced from sodium hypophosphite-based solutions at a slightly alkaline pH range at elevated temperatures. Table 4 lists property and application information for a hypophosphite-reduced cobalt-phosphorus coating. Electroless cobalt alloy plating...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006079
EISBN: 978-1-62708-175-7
..., the base metal to be hardfaced, and material cost. Other influential properties are impact strength, corrosion, oxidation, and thermal behavior. Figure 2 presents the ability of hardfacing powders made from different alloying compositions in resisting abrasion, impact, and heat ( Ref 3 ). Fig. 2...