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oxide-dispersion-strengthened alloys

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2001
DOI: 10.31399/asm.tb.aub.t61170308
EISBN: 978-1-62708-297-6
... strength and creep resistance of molybdenum. An example is the zirconia-dispersion-strengthened alloy Z-6 (0.5% ZrO 2 ). A fine, initial oxide dispersion is critical to alloy performance, because the “pinching-off” mechanism of doped alloys is not operative. The improvement in steady-state creep rate...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2001
DOI: 10.31399/asm.tb.aub.t61170550
EISBN: 978-1-62708-297-6
... through any metal. This fact has made it feasible to internally oxidize certain alloying elements, such as cadmium, in order to dispersion strengthen silver for use in electrical contacts. Gold is a metal with a bright, pleasing yellow color that can be substantially modified by alloy...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2001
DOI: 10.31399/asm.tb.aub.t61170540
EISBN: 978-1-62708-297-6
.... Table 4 Effects of alloying elements in cobalt-base heat resistant alloys Element Effect (a) Chromium Oxidation and sulfidation resistance, carbide former (M 7 C 3 and M 23 C 6 ) Molybdenum, tungsten Solid-solution strengtheners, carbide former (M 6 C), intermetallic compound (Co 3 M...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2001
DOI: 10.31399/asm.tb.aub.t61170417
EISBN: 978-1-62708-297-6
... ~2 β-stabilizer Zirconium 2–5 α- and β-strengthener Silicon 0.05–0.5 Improves creep resistance Table 2 lists some commercial and semicommercial titanium grades and alloys currently available, which are subdivided into four groups: unalloyed...
Series: ASM Technical Books
Publisher: ASM International
Published: 31 December 2020
DOI: 10.31399/asm.tb.phtbp.t59310351
EISBN: 978-1-62708-326-3
... and nonferrous alloys, although the exact practices and intended purpose of annealing may vary from alloy to alloy. Heat treatment also is used to strengthen some nonferrous alloys. Strengthening of many nonferrous alloys by heat treatment typically involves one of two metallurgical principles...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2001
DOI: 10.31399/asm.tb.aub.t61170351
EISBN: 978-1-62708-297-6
... ranges, nominal compositions, and applications for wrought aluminum alloys are listed in Tables 2 , 4 , and 6 , respectively. Aluminum casting alloys are based on the same alloy systems as those of wrought aluminum alloys, are strengthened by the same mechanisms (with the...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2001
DOI: 10.31399/asm.tb.aub.t61170457
EISBN: 978-1-62708-297-6
... screw machining. Coppers C15715 through C15760 are dispersion-strengthened with aluminum oxide to inhibit softening at elevated temperatures ( Fig. 1 ). The combination of thermal stability and high electrical conductivity is useful in applications such as heavy-duty electrical connectors, vacuum...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2006
DOI: 10.31399/asm.tb.pht2.t51440231
EISBN: 978-1-62708-262-4
... for hardening or strengthening, namely solution treating and aging. Examples are presented for heat treating of two commercially important nonferrous alloys, one from the aluminum-copper system and one from the copper-beryllium system. aging annealing cold working nonferrous alloys solution...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2012
DOI: 10.31399/asm.tb.lmub.t53550223
EISBN: 978-1-62708-307-2
... (approximately 60% of the density of iron) that can be highly strengthened by alloying and deformation processing. Titanium is nonmagnetic and has good heat-transfer properties. Its coefficient of thermal expansion is somewhat lower than that of steels and less than half that of aluminum. Titanium and its alloys...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2012
DOI: 10.31399/asm.tb.lmub.t53550033
EISBN: 978-1-62708-307-2
... achievable strengths. It explains how some alloys are hardened through solution strengthening and cold working, while others are strengthened by precipitation hardening. It also describes production and fabrication processes such as melting, casting, rolling, forging, forming, extruding, heat treating, and...
Series: ASM Technical Books
Publisher: ASM International
Published: 31 December 2020
DOI: 10.31399/asm.tb.phtbp.t59310001
EISBN: 978-1-62708-326-3
.... Almost all metals and alloys respond to some form of heat treatment in the broadest sense of this definition, but individual metals and alloys may respond differently. Almost any metal can be softened by annealing after cold working, while fewer alloy systems can be strengthened or hardened by heat...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2001
DOI: 10.31399/asm.tb.aub.t61170123
EISBN: 978-1-62708-297-6
... quantities to very precise specifications. Carbon, microalloyed, and alloy steels are used for components requiring critical and stringent levels of ductility, strength, toughness, fatigue resistance, high-temperature creep resistance, fracture resistance, oxidation resistance, and wear resistance. These...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2001
DOI: 10.31399/asm.tb.aub.t61170003
EISBN: 978-1-62708-297-6
..., such as martensite in steel or alumina (Al 2 O 3 ) in aluminum, the alloy is strengthened by dispersion hardening . Another example of dispersion hardening is dispersion-strengthened copper produced by internal oxidation. These alloys, which feature a fine, uniform dispersion of aluminum oxide...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2011
DOI: 10.31399/asm.tb.jub.t53290099
EISBN: 978-1-62708-306-5
... and niobium carbides. The heat of welding really has no effect on pure metals, single-phase solid-solution-strengthened alloys, or dispersion-strengthened alloys. Solid-solution-strengthened alloys might experience some grain growth, which could lower ductility more than strength. However, this...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2001
DOI: 10.31399/asm.tb.aub.t61170193
EISBN: 978-1-62708-297-6
... improved atmospheric corrosion resistance and solid-solution strengthening (see the article “ Carbon and Alloy Steels ”). Microalloyed ferrite-pearlite steels , which contain very small (generally, less than 0.10%) additions of strong carbide or carbonitride-forming elements such as niobium, vanadium...
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
... important alloying additions that increased temperature capability. Fig. 2 Temperature capability of superalloys with approximate year of introduction. DS, directionally solidified; SC, single-crystal; P/M, powder metallurgy; ODS, oxide-dispersion-strengthened Superalloys have been used in...
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
... microstructure. After forging, optimal properties generally are achieved by precipitation hardening. Solidsolution strengthening and work hardening often contribute to strengthening, dependent on the alloy base and type. Cleaner, less-segregated heats of the most precise chemistry are always desired. The less...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280117
EISBN: 978-1-62708-267-9
... are principally for high-strength gas turbine disk alloy compositions, such as IN-100 or Rene 95, which are difficult or impractical to forge by conventional methods. A limited use exists for oxide-dispersion-strengthened (ODS) alloys in airfoils. Powder metallurgy of conventional γ′-hardened...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2012
DOI: 10.31399/asm.tb.lmub.t53550299
EISBN: 978-1-62708-307-2
... such as niobium or tantalum that promote strengthening and further enhance oxidation resistance. Third alloying elements in two-phase alloys can raise ductility (vanadium, chromium, and manganese), increase oxidation resistance (niobium and tantalum), or enhance combined properties. Gamma alloys...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280025
EISBN: 978-1-62708-267-9
... is typified by such alloys as Hastelloy X and IN-625. The solid-solution-strengthened nickel-base alloys may derive some additional strengthening from carbide and/or intermetallic compound precipitation. A third class of nickel-base superalloys includes oxide-dispersion-strengthened (ODS) alloys...