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titanium aluminides

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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
... Abstract This article reviews the bulk deformation processes for various aluminide and silicide intermetallic alloys with emphasis on the gamma titanium aluminide alloys. It summarizes the understanding of microstructure evolution and fracture behavior during thermomechanical processing of the...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003140
EISBN: 978-1-62708-199-3
... advanced titanium alloys (titanium-matrix composites and titanium aluminides). physical metallurgy titanium alloys application titanium aluminides titanium-matrix composites TITANIUM is a low-density element (approximately 60% of the density of iron) that can be highly strengthened by...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003164
EISBN: 978-1-62708-199-3
... (Ni3Al and NiAl), iron aluminides (Fe3Al and FeAl) and titanium aluminides (alpha-2 alloys, orthorhombic alloys, and gamma alloys). alloying effects corrosion resistance crystallographic data fabrication iron aluminides mechanical properties nickel aluminides processing of aluminides...
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
..., heat treatment, and inspection. The article presents a discussion on titanium alloy precision forgings and concludes with information on the forging of advanced titanium materials and titanium aluminides. cleaning die heating forgeability forging forging design forging equipment forging...
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
... Abstract This article provides a detailed discussion on heat treatment of titanium alloys such as alpha alloys, alpha-beta alloys, and beta and near-beta alloys. Common processes include stress-relief, annealing, solution treating, aging, quenching, and age hardening. It provides information on...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005337
EISBN: 978-1-62708-187-0
... as 17–4PH. The full density advantage of titanium of about 40% is preferred because strength levels are comparable in both materials. Titanium-aluminide castings are being developed for application in the compressor sections of aircraft gas turbine engines subjected to the highest temperatures...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001311
EISBN: 978-1-62708-170-2
... relatively low temperatures, but for conventional alloys, at around 430 °C (800 °F) and above, depending on exposure time, oxygen is taken up by the substrate, which causes embrittlement. Titanium γ-aluminide alloys have useful mechanical properties up to ∼900 °C (1650 °F), but their oxidation resistance is...
Series: ASM Handbook
Volume: 4E
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.hb.v04e.a0006253
EISBN: 978-1-62708-169-6
... called Ti 3 Al (α 2 ) and ordered TiAl (γ aluminides). As aluminum is added, these atoms replace titanium atoms while still maintaining the hexagonal structure until the solubility limit is reached. For example, at 650 °C (1200 °F), the hexagonal phase can accept only approximately 8 wt% Al. Further...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003221
EISBN: 978-1-62708-199-3
... Abstract This article discusses surface engineering of nonferrous metals including aluminum and aluminum alloys, copper and copper alloys, magnesium alloys, nickel and nickel alloys, titanium and titanium alloys, zirconium and hafnium, zinc alloys, and refractory metals and alloys. It describes...
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
... been most dramatic for aluminide-based materials ( Ref 7 ). Bulk forming on a commercial scale has been used for MMCs with aluminum-alloy and, to a lesser extent, titanium-alloy matrices. Iron-aluminide alloys based on the Fe 3 Al compound are probably the structural intermetallic materials that have...
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...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005302
EISBN: 978-1-62708-187-0
... and 10% Ti. These materials contain numerous crystals of the titanium aluminide compound TiAl 3 . (Pictures of aluminide crystals are given in Ref 7 .) When a master alloy is added, typically a few minutes before casting, millions of these microscopic particles are released into the melt. The...
Series: ASM Handbook
Volume: 13B
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v13b.a0003839
EISBN: 978-1-62708-183-2
... constituents, chemical degradation of interphases and reinforcements, microstructure-influenced corrosion, and processing-induced corrosion. The article elaborates on the corrosion behavior of specific aluminum, magnesium, titanium, copper, stainless steel, lead, depleted uranium, and zinc MMCs systems. It...
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...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0009010
EISBN: 978-1-62708-185-6
... materials include aluminum alloys ( Fig. 27(a) ), conventional titanium alloys ( Fig. 27(b) ), titanium aluminides, copper alloys, lead alloys, and iron alloys ( Ref 36 , Ref 37 , Ref 38 ). Fig. 27 Examples of cavitation. (a) In aluminum (Al-7475) alloy. Courtesy of A.K. Ghosh. (b) In titanium (Ti...
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005421
EISBN: 978-1-62708-196-2
... METALLIC MATERIALS develop internal cavities when subjected to large uniaxial or multiaxial tensile strains at elevated temperatures. These materials include conventional alloys of aluminum, titanium, copper, lead, and iron as well as emerging intermetallic materials such as titanium aluminide alloys ( Ref...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005205
EISBN: 978-1-62708-187-0
... inclusions such as titanium nitride particles have not been found after plasma consolidation of contaminated titanium scrap and subsequent VAR remelting. Plasma consolidation has also been successfully applied to the processing of titanium aluminide (TiAl), a low-density alloy with excellent high-temperature...
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005407
EISBN: 978-1-62708-196-2
.... (d) Mechanical properties of titanium aluminides Fig. 2 Graphical user interfaces of artificial neural-network software for simulation and prediction of various correlations in titanium alloys. (a) Time-temperature transformation (TTT) diagrams. (b) Mechanical properties of conventional...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001283
EISBN: 978-1-62708-170-2
... metals as titanium, titanium aluminide, aluminum, magnesium, and copper. Applications for these fibers are found mostly in advanced aerospace programs and include fan blades, drive shafts, and other components. Thermal-laser CVD ( Ref 12 ), or laser pyrolysis, occurs when the laser thermal energy...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0009002
EISBN: 978-1-62708-185-6
... constants. The relation shows that the growth rate may be high when D is small but decreases as D approaches the stable grain size (= d p / C ′ f v ). The application of Eq 22 to model the growth of alpha grains in the presence of stable second-phase gamma particles in a gamma titanium aluminide...