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wrought superalloys

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Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 May 2018
DOI: 10.31399/asm.tb.hma.t59250073
EISBN: 978-1-62708-287-7
... structure made up of hundreds or even thousands of layers. Thus, the original thin layer of surface steel plus the new layers added with each reheating eventually produced a tool with carbon distributed throughout. The earliest record of making steel by melting wrought iron...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.9781627083003
EISBN: 978-1-62708-300-3
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
... corresponding effect on properties and microstructure. It also covers mechanical alloying and weldability and includes nominal composition data on many wrought and cast superalloys. superalloys mechanical alloying Cast superalloys Composition High-temperature alloys Wrought superalloys...
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 March 2002
DOI: 10.31399/asm.tb.stg2.t61280091
EISBN: 978-1-62708-267-9
... Abstract This chapter discusses the similarities and differences of forging and forming processes used in the production of wrought superalloy parts. Although forming is rarely concerned with microstructure, forging processes are often designed with microstructure in mind. Besides shaping, the...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280149
EISBN: 978-1-62708-267-9
... decisions. It discusses the basic concepts of fusion welding and the differences between solid-solution-hardened and precipitation-hardened wrought superalloys. It addresses joint integrity, design, weld-related cracking, and the effect of grain size, precipitates, and contaminants. It covers common fusion...
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-strength, 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...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280001
EISBN: 978-1-62708-267-9
... alloys generally used at temperatures above about 1000 °F (540 °C). The iron-nickel-base superalloys such as the popular alloy IN-718 are an extension of stainless steel technology and generally are wrought. Cobalt-base and nickel-base superalloys may be wrought or cast, depending on the application...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280287
EISBN: 978-1-62708-267-9
... from a hot corrosion test, are shown in Fig. 13.3 . Fig. 13.3 Uncoated nickel-base superalloy erosion test bars after 899 °C (1650 °F) isothermal hot corrosion test. Left to right: cast Udimet 700, wrought Udimet 700, Waspaloy, IN-100, B-1900, MAR-M-246, INCO 728, and MC 102 Weight...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280135
EISBN: 978-1-62708-267-9
... considerations, including heating and cooling rates for wrought and cast superalloys and combined treatments such as solution annealing and vacuum brazing. annealing precipitation hardening stress relieving superalloys...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280117
EISBN: 978-1-62708-267-9
... and consolidation processes were adapted so as to produce the kinds of wrought powder disk components now in use in the aircraft gas turbine field. Many compositions of the best-known P/M superalloys are basically similar to the cast alloys but are manufactured similarly to wrought alloys. The...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280211
EISBN: 978-1-62708-267-9
... cast single-crystal nickel-base superalloys, so carbides and borides may be minimal in the microstructure. As noted previously, γ′ precipitate particles can be found in spherical or cuboidal shapes in the grains of superalloys. In cast alloys, eutectic γ′ is possible. In early wrought γ′-hardened...
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...
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
... total tool wear even for the carbide tools. Many data sets are available for typical carbide tool lives relative to cutting speeds during the turning of various superalloys. For example, A-286 (wrought iron-nickel-base superalloy) is the easiest of the superalloys to machine, with a tool life of 25...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280357
EISBN: 978-1-62708-267-9
... extent not only on tcp phase ductility shortcomings but also on: Phase morphology Volume fraction of tcp phase The extent to which the tcp phase may deplete the γ matrix of alloy elements required for γ or γ′ strengthening In early studies of cast and wrought nickelbase superalloys...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280041
EISBN: 978-1-62708-267-9
... transverse direction, the channels are seen as dark, etching round spots, thus the common name of freckles. For most commercially useful wrought superalloys, the solidification conditions of static casting will produce freckles. Thus, these alloys are normally static cast as electrodes, which are consumably...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280203
EISBN: 978-1-62708-267-9
... are often used. Abrasive blasting with dry aluminum oxide can be used to remove oxide and scale from all types of wrought and cast heat-resistant alloys. Silicon carbide is more expensive than aluminum oxide and is seldom used. Silica (silicon dioxide, or sand) has a limited application because of...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280323
EISBN: 978-1-62708-267-9
... of time. “Excessive” is a relative word. For some alloys, exceeding 1200 °F (649 °C) can be considered excessive temperature. Allowable metal temperatures for wrought superalloys in structural applications generally do not exceed about 1400 °F (760 °C) for gas turbine disks but may be higher for less...
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
... for investment casting is produced by vacuum induction melting (VIM). Vacuum induction melted heats of superalloys intended for the investment casting process are much smaller in mass than the VIM heats used to produce stock for wrought alloy processing. Heat sizes are more likely to be in the 4000 to...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2012
DOI: 10.31399/asm.tb.pdub.t53420339
EISBN: 978-1-62708-310-2
...-hardened nickel-base superalloy. Source: Ref 16.3 Wrought precipitation-strengthened nickel-base superalloys are solution heat treated and then aged to produce the desired properties. Solution-treating temperatures range from approximately 980 to 1230 °C (1800 to 2250 °F), or even up to 1315 °C...