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cobalt-base heat-resistant casting

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.htcma.t52080445
EISBN: 978-1-62708-304-1
... Abstract This appendix is a collection of tables listing the chemical compositions of wrought ferritic steels; wrought stainless steels; cast corrosion- and heat-resistant alloys; wrought iron-, nickel-, and cobalt-base alloys; cast nickel- and cobalt-base alloys; oxide-dispersion-strengthened...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2001
DOI: 10.31399/asm.tb.aub.t61170540
EISBN: 978-1-62708-297-6
.... Table 5 Nominal compositions of cast cobalt-base heat resistant alloys Alloy designation Nominal composition, % C Ni Cr Co Mo Fe Al B Ti Ta W Zr Other AiResist 13 0.45 … 21 62 … … 3.4 … … 2 11 … 0.1Y AiResist 213 0.20 0.5 20 64 … 0.5 3.5 … … 6.5 4.5...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240563
EISBN: 978-1-62708-251-8
... Abstract Superalloys are nickel, iron-nickel, and cobalt-base alloys designed for high-temperature applications, generally above 540 deg C. This chapter covers the metallurgy, composition, and properties of cast and wrought superalloys. It provides information on melting, heat treating...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280025
EISBN: 978-1-62708-267-9
... the same degree of utility as the γ′ precipitate in nickel- or iron-nickel-base superalloys has been found to be operative over a wide range in cobalt-base systems. Properties in superalloys usually are developed (for a given composition) by a combination of cast/wrought processing followed by heat...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240547
EISBN: 978-1-62708-251-8
..., and resistance to abrasive wear. Cobalt-base alloys may be grouped as wear-resistant, corrosion-resistant, or heat-resistant alloys. The single largest application of cobalt-base alloys is for wear resistance. In heat-resistant applications, cobalt is more widely used as an alloying element in nickel-base...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060315
EISBN: 978-1-62708-261-7
... types of commercial alloys are outlined in Chapter 5, “Modern Alloy Production,” in this book. Heat treatment of aluminum, cobalt, copper, magnesium, nickel-base superalloys, and titanium alloys is discussed in Chapter 14, “Nonferrous Heat Treatment.” High-strength...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280211
EISBN: 978-1-62708-267-9
... temperatures are substantially less than those of the γ′-hardened alloys. Consequently, cast cobalt-base alloys generally are not heat treated, except in a secondary sense through the coating diffusion heat treatment of 4 h at 1950 to 2050 °F (1065 to 1120 °C), which may be applied if a coating is required...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280189
EISBN: 978-1-62708-267-9
... superalloys, which have descended from stainless steels, usually machine more easily than the nickel-base and cobalt-base superalloys under similar conditions of heat treatment. However, the iron-base alloys do present chip-breaking problems, which often require special tool geometries. The nickel-base...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2001
DOI: 10.31399/asm.tb.aub.t61170290
EISBN: 978-1-62708-297-6
... the limiting fracture mechanics criteria for modern wrought superalloy application. Carbides may provide some degree of matrix strengthening, particularly in cobalt-base alloys, and are necessary for grain-size control in some wrought alloys. Some carbides are virtually unaffected by heat treatment, while...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2021
DOI: 10.31399/asm.tb.tpsfwea.t59300227
EISBN: 978-1-62708-323-2
... they are subjected to liquid, droplet, and solid particle erosion. It also discusses the tribology of nickel- and cobalt-base alloys as well as titanium, zinc, tin, aluminum, magnesium, beryllium, graphite, and different types of wood. alloy composition cobalt-base alloys corrosion-resistant metals friction...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2001
DOI: 10.31399/asm.tb.aub.t61170614
EISBN: 978-1-62708-297-6
... 1340 Y, A Cobalt rare earth 3 SmCo 5 725 1340 Y, A Cobalt rare earth 4 Sm 2 Co 17 800 1475 Y, A Bonded Co rare earth … … … Y, P, E (a) Y, yes; H, orientation developed during heat treatment; C, columnar crystal structure developed; P or E, some orientation developed...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.sap.t53000025
EISBN: 978-1-62708-313-3
.... , and Hu Z.Q. , Secondary M 6 C Precipitation in a Cobalt-Base Superalloy , J. Mater. Sci. Lett. , Vol 18 , 1999 , p 303 – 305 23. Microstructure of Wrought Heat-Resisting Alloys , Atlas of Microstructures of Industrial Alloys , Vol 7 , Metals Handbook , 8th ed. , American Society...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280323
EISBN: 978-1-62708-267-9
... to repair weld cobalt-base and solution-hardened nickel-base superalloys for nonrotating components. IN-738LC precipitation-hardened nickel-base superalloy has been welded successfully for land-based gas turbine applications but requires postweld heat treatment to recover properties. Welding of high...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.sap.t53000009
EISBN: 978-1-62708-313-3
... and S-816 are also available in cast form.) Typical applications for cobalt-base superalloys in GTEs are vanes and other stationary components, due to their superior stress-rupture properties and hot corrosion resistance. Cobalt-base superalloys can also be used to fabricate GTE blades but must...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280365
EISBN: 978-1-62708-267-9
... International , 1999 , p 394 – 414 10.31399/asm.hb.mhde2.a0003120 • Furrer D. and Fecht H. , Ni-Base Superalloys for Turbine Disks , J. Met. , Vol 51 ( No. 1 ), 1999 , p 14 – 17 10.1007/s11837-999-0005-y • Davis J.R. , Ed., Heat-Resistant Materials , ASM International...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.htcma.t52080423
EISBN: 978-1-62708-304-1
... of the alloy that is under welding can cause LME in the heat-affected zone of cobalt-base alloys ( Ref 43 , 44 ). Savage and Mushala ( Ref 44 ) believed that copper and cobalt are essentially insoluble in each other and thus form a classic LME couple. Korb ( Ref 45 ) summarized some of the LME issues...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.sap.t53000059
EISBN: 978-1-62708-313-3
... alloying elements in superalloys Element Nickel-iron base Cobalt base Nickel base Cr Improves hot corrosion and oxidation resistance Solid-solution hardening M 23 C 6 and M 7 C 3 carbide precipitation Improves hot corrosion and oxidation resistance Promotes topologically...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280001
EISBN: 978-1-62708-267-9
... procedures, forging and working processes, casting techniques, and, above all, to heat treatment following forming, forging or casting. Iron-nickel-base (sometimes designated nickel-iron-base) superalloys such as IN-718 are less expensive than nickel-base or cobalt-base superalloys. Most wrought...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280339
EISBN: 978-1-62708-267-9
..., high-temperature-resistant superalloys soared with the introduction of the gas turbine engine for aircraft applications. Iron-nickel-base superalloys were developed further as wrought materials, new cobalt-base superalloys were invented and brought to market, while both wrought and cast nickel-base...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060333
EISBN: 978-1-62708-261-7
...-hardenable nickel alloy compositions, and they never became commercially viable. In terms of heat treatment, cobalt-base superalloys are “solution treated” at high temperature for more uniform dissolution of constituents. A common solid-solution cobalt superalloy is Haynes 188. The heat treatment...