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cobalt-base superalloys

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Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280079
EISBN: 978-1-62708-267-9
... Abstract This chapter discusses the application of investment casting to nickel- and cobalt-base superalloys. It describes the production of polycrystalline and single crystal castings, the materials normally used, and the part dimensions and tolerances typically achieved. It explains how...
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
... Abstract This article discusses the composition, structure, and properties of iron-nickel-, nickel-, and cobalt-base superalloys and the effect of major alloying and trace elements. It describes the primary and secondary roles of each alloying element, the amounts typically used...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280011
EISBN: 978-1-62708-267-9
... Abstract This chapter provides basic materials selection information for iron-nickel-, nickel-, and cobalt-base superalloys. It discusses mechanical and physical properties, the effect of service temperature, and the comparative strengths of wrought and cast product forms. It includes several...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.sap.t53000139
EISBN: 978-1-62708-313-3
... Abstract This appendix contains detailed micrographs of nickel- and cobalt-base superalloys selected to illustrate the microstructural features described in this book. micrograph microstructure superalloys Comprising the Micrograph Gallery are selected nickel- and cobalt-base...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.sap.t53000009
EISBN: 978-1-62708-313-3
... Abstract This chapter provides a brief overview of nickel-iron-base, cobalt-base, and nickel-base superalloys, discussing their basic metallurgy and defining characteristics. coefficient of thermal expansion superalloys SUPERALLOYS ARE CLASSIFIED according to the main alloying...
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...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.sap.t53000001
EISBN: 978-1-62708-313-3
... Abstract Superalloys, although not strictly defined, are generally regarded as high-performance alloys based on group VIII elements (nickel, cobalt, or iron, with a high percentage of nickel) to which a multiplicity of alloying elements have been added. The defining feature of a superalloy...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280323
EISBN: 978-1-62708-267-9
... degradation may change. In addition, oxidation and surface corrosion may take place at all temperatures for which these alloys are normally specified. This section deals principally with the effects of microstructural changes, melting and corrosion on nickel-base and cobalt-base superalloys...
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
... Abstract This chapter discusses the typical compositional ranges of superalloys, the role of major base metals (iron, cobalt, and nickel), and the effects of common alloying additions. It describes how chromium, aluminum, and titanium as well as refractory elements, grain-boundary elements...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280211
EISBN: 978-1-62708-267-9
... Cobalt-base superalloys are solid-solution strengthened, although a few older alloys were γ′ hardened. Their strength was not sufficient to compete with nickel-base superalloys. Some nickel-base and iron-nickel-base superalloys also are solid-solution strengthened. However, the alloys used for highest...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280001
EISBN: 978-1-62708-267-9
... developed in the first decade of the 20th century) were also available. So, the race was on to make superior metal alloys available for the insatiable thirst of the designer for more high-temperature strength capability. It continues yet! Superalloys are nickel-, iron-nickel-, and cobalt-base alloys...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280091
EISBN: 978-1-62708-267-9
... concerns such as forming speed, rolling direction, rerolling, and heat treating precipitation-hardened alloys. It presents several application examples involving carbide-hardened cobalt-base and other superalloys, and it concludes with a discussion on superplasticity and its adaptation to commercial...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280025
EISBN: 978-1-62708-267-9
... prime gamma prime microstructure superalloys As noted earlier, there are three groups of superalloys (iron-nickel-, nickel-, and cobalt-base), which are further subdivided into cast and wrought (where...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280149
EISBN: 978-1-62708-267-9
... of precipitation-hardened superalloys may eliminate the need to age after joining. In cobalt-base superalloys, a carbide dispersion accounts for much of the hardening. During fusion welding, cobalt-base superalloys are much less at risk for the loss of hardening by solution and/or growth of the carbide phases...
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...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.sap.t53000025
EISBN: 978-1-62708-313-3
... of IN718 Derivative Alloys , Superalloys 1992 , Antolovich S.D. et al. , Ed., TMS , 1992 , p 507 – 516 10.7449/1992/Superalloys_1992_507_516 19. Beltran A.M. , Cobalt-Base Alloys , Superalloys II , Sims C.T. , Stoloff N.S. , and Hagel W.C. , Ed., John Wiley...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280287
EISBN: 978-1-62708-267-9
... hot-corrosion-type degradation processes. As a result of hot corrosion failures and alloy studies, superalloys were created that were/are more resistant to hot corrosion than the initial high-strength cast airfoil superalloys such as IN-100 and B-1900 nickel-base superalloys. Cobalt-base...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280339
EISBN: 978-1-62708-267-9
... to create the cobalt-base alloys, and, although the fundamentals of precipitation hardening were still being discovered, precipitation hardening nickel-base alloys were developed. At that time, the word “superalloys” had not yet been coined. The cobalt-base alloy Vitallium was relatively strong...
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
... • Betteridge W. and Heslop J. , Ed., The Nimonic Alloys , 2nd ed. , Crane, Russak, and Co. , 1974 • Sims C.T. and Hagel W.C. , Ed., The Superalloys , Wiley , 1972 • Sullivan C.P. , Donachie M.J. , and Morral F.R. , Cobalt-Base Superalloys—1970 , Cobalt...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smff.t53400005
EISBN: 978-1-62708-316-4
... a pressure pad and a die while the sheet is forced to yield and bend over the edge of the die. Equipment: mechanical press brakes, hydraulic press brakes Materials: carbon and alloy steels; aluminum alloys; titanium alloys; iron-, nickel-, and cobalt-base superalloys; molybdenum alloys...