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miscibility gap

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Series: ASM Handbook
Volume: 3
Publisher: ASM International
Published: 27 April 2016
DOI: 10.31399/asm.hb.v03.a0006234
EISBN: 978-1-62708-163-4
... miscibility gap; Au-Cu-Ni liquidus projection; Au-Cu-Ni miscibility gap at 400 degrees centigrade; Au-Cu-Ni miscibility gap at 700 degrees centigrade; and Au-Sn-Te liquidus projection. ternary alloy phase diagrams miscibility gap liquidus projection gold alloys THIS ARTICLE includes systems where...
Series: ASM Handbook
Volume: 3
Publisher: ASM International
Published: 27 April 2016
DOI: 10.31399/asm.hb.v03.a0006240
EISBN: 978-1-62708-163-4
... includes 42 phase diagrams (liquidus projection, solidus projection, isopleths, isothermal section and vertical section). copper ternary system isopleths liquidus projection miscibility gap solidus projection ternary alloy phase diagrams THIS ARTICLE includes systems where copper is the...
Series: ASM Handbook
Volume: 3
Publisher: ASM International
Published: 27 April 2016
DOI: 10.31399/asm.hb.v03.a0006233
EISBN: 978-1-62708-163-4
... weight percent. The article includes 136 phase diagrams (liquidus projection, solidus projection, isothermal section, vertical section, and solvus projection). aluminum ternary system isothermal section liquidus projection miscibility gap solidus projection solvus projection ternary alloy...
Series: ASM Handbook
Volume: 3
Publisher: ASM International
Published: 27 April 2016
DOI: 10.31399/asm.hb.v03.a0006224
EISBN: 978-1-62708-163-4
... two-phase field, splitting it into two portions as shown in Fig. 4 . It also is possible to have a miscibility gap in a single-phase field; this is shown in Fig. 5 Lines aT c and bT c , called solvus lines, indicate the limits of solubility of component B in A and A in B, respectively. Point...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003732
EISBN: 978-1-62708-177-1
... ( T c ), the binary system is in the region of full solid solubility with a single-phase field (α 0 ) at temperature T 0 . When the temperature goes below the critical temperature, a miscibility gap exists where a single-phase homogenous microstructure is no longer stable and a two-phase (α 1 + α...
Book Chapter

Series: ASM Handbook
Volume: 3
Publisher: ASM International
Published: 27 April 2016
DOI: 10.31399/asm.hb.v03.a0006229
EISBN: 978-1-62708-163-4
... ). If a composition, X 0 , is heated above the critical temperature, T c , the binary system is in the region of full solid solubility with a single-phase field, α 0 , at temperature T 0 . When the temperature goes below the critical temperature, a miscibility gap exists where a single-phase...
Series: ASM Handbook
Volume: 3
Publisher: ASM International
Published: 27 April 2016
DOI: 10.31399/asm.hb.v03.a0006227
EISBN: 978-1-62708-163-4
... phase diagram, alloys containing between 36 and 87 wt% Pb separate into two liquids on further cooling. The two liquids coexist in the miscibility gap, or dome, that is typical of all alloys that undergo a monotectic reaction. During solidification of a copper-lead alloy containing 20 wt% Pb, the copper...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005206
EISBN: 978-1-62708-187-0
... phase, Ω L and Ω S , lens-shaped isomorphous ( Fig. 2 ), eutectic ( Fig. 2 ), or pertitectic ( Fig. 2 ) phase diagrams can be obtained. A positive value of Ω φ results in the formation of a miscibility gap (a region of phase separation) at lower temperature. However, since the contribution of G...
Book Chapter

Series: ASM Handbook
Volume: 3
Publisher: ASM International
Published: 27 April 2016
DOI: 10.31399/asm.hb.v03.a0006225
EISBN: 978-1-62708-163-4
... binary phase diagram with a minimum in the liquidus and a miscibility gap in the solid state. Source: Ref 1 Fig. 2 Schematic binary phase diagrams with invariant points. (a) Hypothetical diagram with miscibility gap in the solid that touches the solidus curve at invariant point P ; an actual...
Series: ASM Handbook Archive
Volume: 10
Publisher: ASM International
Published: 01 January 1986
DOI: 10.31399/asm.hb.v10.a0001763
EISBN: 978-1-62708-178-8
... gap in binary metallic alloys, such as aluminum-silver, aluminum-zinc, and so on, and in ternary systems ( Ref 18 ). It has been observed that the SAXS from cold-worked metals can be explained in terms of double Bragg scattering. That is, the incident beam is diffracted by a crystalline grain, and the...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003085
EISBN: 978-1-62708-199-3
... to have a gap in miscibility in a single-phase field; this is shown in Fig. 5 . Point T c , above which phases α 1 and α 2 become indistinguishable, is a critical point similar to point 4 in Fig. 2 . Lines a-T c and b-T c , called solvus lines, indicate the limits of solubility of...
Series: ASM Handbook
Volume: 4E
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.hb.v04e.a0006277
EISBN: 978-1-62708-169-6
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005402
EISBN: 978-1-62708-196-2
... instead of the stable ones. Occurrence of the metastable equilibria is often a result of multiple minima in the Gibbs energy of a phase involved in the calculation, such as a phase with miscibility gap. Indeed, Chen et al. have found that some of the calculated phase diagrams in the literature are...
Series: ASM Handbook
Volume: 4E
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.hb.v04e.a0006259
EISBN: 978-1-62708-169-6
... miscibility gaps, indicating possible age-hardening capability. The PGM binaries that include ruthenium and some base metals are more complicated, but all have certain compositional ranges that show solubility as well. Palladium-silver alloys are solid solutions over the entire compositional range. There are...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001423
EISBN: 978-1-62708-173-3
... edge of the fusion zone and will include all or part of the mushy zone (a pure metal has no mushy zone). This liquid is almost always found along the grain boundaries ( Fig. 6 ). The few exceptions are alloys that have miscibility gaps, such as leaded brass. These alloys can have liquid from the low...
Series: ASM Handbook
Volume: 5A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v05a.a0005741
EISBN: 978-1-62708-171-9
... structure of α-Al 2 O 3 ( Fig. 7 ). It can be seen that Al 2 O 3 and Cr 2 O 3 can form a solid solution at the entire high-temperature range with a corundum crystal structure. At low temperature, a miscibility gap divides the system into a Cr 2 O 3 -rich phase and an Al 2 O 3 -rich phase. Bulk chromium...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003731
EISBN: 978-1-62708-177-1
... from phase separation or precipitation within a metastable miscibility gap in the alloy system. They may form by homogeneous nucleation and grow at small undercoolings or by spinodal decomposition at large undercoolings or supersaturations (see the article “Spinodal Transformation Structures” in this...
Series: ASM Handbook
Volume: 22B
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.hb.v22b.a0005517
EISBN: 978-1-62708-197-9
... conceptualization of miscibility gaps, invariant reactions, and so on. In multicomponent space, such things are often very difficult to understand, let alone conceptualize. Miscibility gaps can appear in ternary and higher-order systems, even though no miscibility gap exists in the lower-order systems, and the...
Series: ASM Handbook
Volume: 13B
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v13b.a0003824
EISBN: 978-1-62708-183-2
... orthorhombic. At temperatures above 150 °C (300 °F), the miscibility gap disappears. A dehydride exists as an unstable compound and, at low pressures, decomposes by loss of hydrogen into the monohydride. Niobium will oxidize in air above 200 °C (390 °F). The reaction, however, does not become rapid until...
Series: ASM Handbook
Volume: 2
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v02.a0001105
EISBN: 978-1-62708-162-7
... cermets for tool applications. Their enhanced strength, which makes them suitable for high-speed cutting tools, is based on a greatly improved bond between the hard carbide grains and the binder metal. The improved bond is a consequence of a miscibility gap in the quaternary TiC, TiN, MoC, and MoN system...