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gamma alloys

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2012
DOI: 10.31399/asm.tb.lmub.t53550299
EISBN: 978-1-62708-307-2
...-aluminum phase diagram, focusing on the properties, compositions, and microstructures of alpha-2 Ti3Al alloys. It then describes the properties, microstructures, and compositions of orthorhombic, gamma, and near-gamma alloys as well as the processing methods and procedures normally used in their production...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 April 2013
DOI: 10.31399/asm.tb.imub.t53720233
EISBN: 978-1-62708-305-8
... Abstract This chapter discusses radiography methods using x-rays, gamma rays, and neutrons. It begins with a discussion on the applications and principles of radiography followed by sections providing information on the sources of radiation, classifications, and characteristics of x-ray tubes...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2000
DOI: 10.31399/asm.tb.ttg2.t61120131
EISBN: 978-1-62708-269-3
... potential service temperatures for the titanium aluminides currently are expected to range from 600 to 760 °C (1110–1400 °F). The gamma class of aluminides offers more oxidation resistance than alpha-2 alloys. Although alloy developments were tried to further increase the oxidation resistance of gamma...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.tpmpa.t54480113
EISBN: 978-1-62708-318-8
... ductility as well as creep, fatigue strength, and fatigue crack growth rate. It also discusses the influence of other titanium phases and the properties of titanium-based intermetallic compounds, metal-matrix composites, and shape-memory alloys. alloy composition alpha titanium alloys alpha-beta...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.tpmpa.t54480075
EISBN: 978-1-62708-318-8
... composition reaches line BE , gamma begins to precipitate. The decomposition of beta to alpha and gamma continues until the beta phase no longer exists. The time required for the compound gamma to precipitate depends on temperature and alloy composition. If the alloy composition C 1 is close to line...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.tpmpa.t54480141
EISBN: 978-1-62708-318-8
... temperature just below the alpha transus (15 to 30 °C, or 27 to 54 °F), followed by cooling at 10 to 100 °C (18 to 180 °F) per minute. The duplex (DM) microstructure is formed upon annealing at and cooling from an alpha + gamma two-phase field temperature, where the alpha:gamma volume ratio is 0.4 to 0.6. The...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.tpmpa.t54480095
EISBN: 978-1-62708-318-8
... anneal. The advantages of this type of processing treatment are covered in Chapter 4, “Principles of Beta Transformation and Heat Treatment of Titanium Alloys,” in this book. Gamma titanium aluminide (TiAl) is of interest for use in aerospace and high-temperature automotive engine applications...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2001
DOI: 10.31399/asm.tb.aub.t61170540
EISBN: 978-1-62708-297-6
... resistant alloys nevertheless play an important role, by virtue of their excellent resistance to sulfidation, hot corrosion, and their strength at temperatures exceeding those at which the gamma-prime and gamma-double-prime precipitates in the nickel and nickel-iron alloys dissolve. To satisfy the...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2001
DOI: 10.31399/asm.tb.aub.t61170495
EISBN: 978-1-62708-297-6
... elements. For example, aluminum and titanium are usually added together for the age-hardening gamma prime, γ′, precipitate Ni 3 (Al, Ti). This enables the formation of alloys with very high strengths for both low- and high-temperature services. Nickel and nickel alloys are used for a wide variety of...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2006
DOI: 10.31399/asm.tb.pht2.t51440231
EISBN: 978-1-62708-262-4
... of Fig. 5 ). The precipitation process in the copper-beryllium alloy system is complicated by the beta (β) phase changing into gamma (γ). However, for the alloy under discussion the reader is interested only in the left portion of the phase diagram. Note that the primary requirement for...
Series: ASM Technical Books
Publisher: ASM International
Published: 31 December 2020
DOI: 10.31399/asm.tb.phtbp.t59310001
EISBN: 978-1-62708-326-3
... (2541 °F) is reached. This temperature marks the beginning of a transformation of the bcc delta iron into an the fcc austenitic or gamma (γ) iron phase. Again, the temperature stays constant until the transformation is complete, that is, until all of the iron has an austenitic (fcc) phase structure...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2000
DOI: 10.31399/asm.tb.ttg2.t61120139
EISBN: 978-1-62708-269-3
... orthorhombic (O) phase. The O-phase alloys appear to improve fracture toughness and creep resistance. Semicommercial and experimental alloys are under development for possible high-temperature applications. Gamma (Ti-Al) aluminide alloys, UNS: none, Ti-Al intermetallics can be classified generally as...
Series: ASM Technical Books
Publisher: ASM International
Published: 31 December 2020
DOI: 10.31399/asm.tb.phtbp.t59310351
EISBN: 978-1-62708-326-3
... in MP35N alloy during age hardening. The other age-hardenable alloy is a more nickel-rich alloy with a composition of 36% Co, 19% Cr, 7% Mo, and balance nickel. Hardening of MP159 alloy occurs from the precipitation of gamma prime (γ′), Ni 3 (Al, Ti), which also is encouraged by the addition of 3 wt...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2017
DOI: 10.31399/asm.tb.sccmpe2.t55090317
EISBN: 978-1-62708-266-2
.... , and Miglionico C.J. , Influence of Aging Time and Temperature on the Susceptibility of Gamma-Quenched U-5% Nb Alloy to SCC , Corrosion , Vol 28 ( No. 1 ), 1972 , p 35 – 38 10.5006/0010-9312-28.1.35 12.16 Macki J.M. and Kochen R.L. , Stress Corrosion Cracking of Aged U...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060013
EISBN: 978-1-62708-261-7
... temperature of 1394 °C (2541 °F) is reached. This temperature marks the beginning of a transformation of the bcc delta iron into an fcc crystal phase, called austenite or gamma (γ) iron. The temperature stays constant until the transformation is complete, that is, until all of the iron has an austenitic...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060333
EISBN: 978-1-62708-261-7
... boundaries in MP35N alloy during age hardening. The other age-hardenable alloy is a more nickel-rich alloy with a composition of 36% Co, 19% Cr, 7% Mo and balance nickel. Hardening of MP159 alloy occurs from the precipitation of gamma prime (γ′), Ni 3 (Al, Ti), which also is encouraged by the addition of 3...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230199
EISBN: 978-1-62708-298-3
... of the abrasives are satisfactory. Only a short polishing time is needed. Final polishing is accomplished on a high-speed wheel covered with a softer, longer-napped cloth than that used for the initial polish. Fine gamma-alumina powder is the preferred abrasive, but rouge, chromic oxide, or...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2001
DOI: 10.31399/asm.tb.aub.t61170528
EISBN: 978-1-62708-297-6
... important as shielding against x-rays and, in the nuclear industry, gamma rays. In addition, lead is used as an alloying element in steel and in copper alloys to improve machinability and other characteristics, and it is used in fusible (low-melting) alloys for fire sprinkler systems. Tin is a soft...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030074
EISBN: 978-1-62708-282-2
..., contain a large proportion of other alloying elements, these alloys maintain the face-centered cubic lattice structure (fcc or gamma) from the nickel-base element. As a consequence of the fcc structure, nickel-base alloys have excellent ductility, malleability, and formability. Nickel alloys are also...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 April 2013
DOI: 10.31399/asm.tb.imub.t53720393
EISBN: 978-1-62708-305-8
..., computed tomography, gamma-ray density determination, and ultrasonic techniques. density measurements dimensional evaluation hardness testing nondestructive evaluation powder metallurgy parts FABRICATED POWDER METALLURGY (P/M) parts are evaluated and tested at several stages during...