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nickel aluminides

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Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003164
EISBN: 978-1-62708-199-3
... melting points, and good high-temperature strength that make them an attractive material for high-temperature structural application. This article discusses the properties, chemical composition, corrosion resistance, processing, fabrication, alloying effects and crystallographic data of nickel aluminides...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004001
EISBN: 978-1-62708-185-6
... aluminide alloys, based on the tetragonal TiAl phase, are under development primarily in monolithic form as a lightweight replacement for nickel-base superalloys in jet engines and several nonaerospace applications such as automobile engine valves. Because of the improved ability to control microstructure...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001314
EISBN: 978-1-62708-170-2
... Abstract Nickel alloys can be divided into four groups: high-nickel alloys, nickel-copper alloys, nickel-chromium alloys, and nickel-iron-chromium alloys. Alloys within each composition group that has similar surface conditions are pickled in the same solutions using the same procedures. This...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003140
EISBN: 978-1-62708-199-3
... result of their specialized usage, alloys for high-performance applications normally are processed to more stringent and costly requirements than “unalloyed” titanium for corrosion service. Historically, titanium alloys have been used instead of iron or nickel alloys in aerospace applications because...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004000
EISBN: 978-1-62708-185-6
... and (2) TiAl or γ. Titanium aluminide alloys have been found to offer elevated-temperature performance characteristics that are competitive with those of nickel/cobalt-base superalloys but with significantly reduced density. Initial α-2 alloys that have been developed and subjected to forging and...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003999
EISBN: 978-1-62708-185-6
...-strengthened nickel alloys and even nickel-aluminide materials have been used for such applications. The molybdenum alloy TZM is used in isothermal forging applications where the tools are heated to the same temperature as the workpiece. Due to the poor oxidation resistance of the molybdenum tooling, this...
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
... (NiAl) outer layer with enhanced oxidation resistance. This outer layer is developed by the reaction of aluminum with the nickel in the base metal (or cobalt in the case of cobalt superalloys). Aluminide diffusion coatings generally are thin, approximately 50 to 75 μm (2 to 3 mils). They consume some...
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, and...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003221
EISBN: 978-1-62708-199-3
... silicide and aluminide diffusion coatings, oxide, nickel-chromium, and chromium carbide coatings deposited by thermal spray techniques, and precious metal coatings. A guide to these coating systems can be found in the Section “Refractory Metals and Alloys” in this Handbook. Most polishing operations...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003971
EISBN: 978-1-62708-185-6
... extrusion, incremental forging, and microforming. The article describes the thermomechanical processing of nickel- and titanium-base alloys and concludes with information on the advancements in process simulation. accuracy incremental forging metal forming metal products metal working...
Series: ASM Handbook
Volume: 13B
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v13b.a0003837
EISBN: 978-1-62708-183-2
... compounds, most of which have not been studied. However, aqueous corrosion research has been conducted on a number of intermetallic compounds for low-temperature structural applications, but most of this research has been conducted on nickel, iron, and titanium aluminides. More detailed reviews of this...
Book Chapter

Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001293
EISBN: 978-1-62708-170-2
...) to the substrate on which the coating is formed. Figure 1 presents schematic diagrams of the diffusion zones in a series of packs used for the production of aluminide coatings on nickel- and cobalt-based superalloys, in which the source is aluminum or an aluminum alloy and the activator an...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001313
EISBN: 978-1-62708-170-2
... Modified aluminide Al + Sn Hot dip Zinc coating Self-healing intermetallic Zn and Zn + Al, Ti, Co, Cu, Cr, Fe, Zr, Cu, Si Vacuum distillation and hot dip Oxide coating Glass-sealed oxide Al 2 O 3 + glass (baria, alumina, silica) Flame spray Al 2 O 3 + glass slurry Nickel...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003151
EISBN: 978-1-62708-199-3
... stainless steel, a nickel-base superalloy (Hastelloy X), and a cobalt base superalloy (HS-188) Molybdenum combines a high melting point (2610 °C, or 4730 °F) with strength retention at high temperatures. Molybdenum also boasts a high specific elastic modulus, which makes it...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003218
EISBN: 978-1-62708-199-3
... microwave plasma, thermal means (hot filament), plasma arc, or laser. An aluminizing pack cementation process is commercially practiced for a range of alloys, including nickel- and cobalt-base superalloys, steels, and stainless steels. Simple aluminide coatings resist high-temperature oxidation by the...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003985
EISBN: 978-1-62708-185-6
... time it takes to manufacture the dies. Die materials like NX188, IN 100, alloy 718, and nickel aluminide provide another manufacturing plus that TZM does not. These alloys can be cast to the near-net die shape so little machining is necessary. As an alternative to casting a complex NNS die, one might...
Series: ASM Handbook
Volume: 4E
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.hb.v04e.a0006283
EISBN: 978-1-62708-169-6
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
... degradation Today (2008), cast cobalt alloys play an important role in aero- and land-based gas turbines. While vacuum cast nickel alloys predominate in the hot sections of modern aero turbine engines, cobalt alloys are routinely specified for particularly demanding applications, such as fuel nozzles and...
Series: ASM Handbook
Volume: 10
Publisher: ASM International
Published: 15 December 2019
DOI: 10.31399/asm.hb.v10.a0006657
EISBN: 978-1-62708-213-6
.... Figure 4(a) shows the intensity of electrons, expressed as EN ( E ), as a function of energy obtained from a nickel specimen. Auger electron peaks are readily visible in the spectrum, but they are relatively small because only ~0.1% of the total current is typically contained in Auger peaks. Low-energy...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003163
EISBN: 978-1-62708-199-3
... compounds, such as the aluminides of titanium, nickel, and iron, are also under development. Reinforcements, characterized as either continuous or discontinuous, may constitute from 10 to 70 vol% of the composite. Continuous fiber or filament (f) reinforcements include graphite, silicon carbide (SiC), boron...