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mixture homogeneity

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Published: 01 December 2009
Fig. 1 Sketch of the free energy of a binary mixture quenched in a two-phase region. The bold line is the free energy per atom G ( x ) of the homogeneous system. The compositions x e and y e of the equilibrium phases are given by the common tangent construction. The spinodal limits x s More
Image
Published: 30 September 2015
Fig. 3 Ball milling (left) and attritor milling (right) are used to homogenize the powder mixture and reduce particle size. More
Image
Published: 01 December 2004
Fig. 32 Start of the peritectic transformation in the same directionally solidified Cu-20Sn alloy shown in Fig. 30 , but at higher magnification. Note the homogeneous thickness of the β layers (gray) around the primary α (white). The matrix (dark) is a mixture of tin-rich phases. Mechanically More
Image
Published: 01 December 2008
Fig. 7 Start of the peritectic transformation in the same directionally solidified Cu-20Sn alloy shown in Fig. 5 , but at higher magnification. Note the homogeneous thickness of the β-layers (gray) around the primary α (white). The matrix (dark) is a mixture of tin-rich phases. Mechanically More
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
... ). The result is homogenous decomposition of a supersaturated single phase into two phases that have essentially the same crystal structure (but different composition) as the parent phase. Spinodal structures are characterized by what has been described as a woven or “tweedy” structure ( Ref 3...
Series: ASM Handbook
Volume: 4E
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.hb.v04e.a0006257
EISBN: 978-1-62708-169-6
...Abstract Abstract Homogenization heat treatment can be useful for improving the performance and life of an alloy while in service or for improving the processability during fabrication and hot working. This article describes the identification of incipient melt point, slowest-diffusing elements...
Series: ASM Handbook
Volume: 4E
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.hb.v04e.a0006276
EISBN: 978-1-62708-169-6
...Abstract Abstract This article provides information on the Unified Numbering System designations and temper designations of copper and copper alloys. It discusses the basic types of heat treating processes of copper and copper alloys, namely, homogenizing, annealing, and stress relieving...
Book Chapter

By Erhard Klar
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003185
EISBN: 978-1-62708-199-3
... to sintering hot isostatic pressing A process combining temperature and high pressure gas to densify a material into a net-shape component using a pressure-tight outer envelope metal injecting molding A process in which a mixture of a metal powder and plastic binder is injection molded...
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
... and begin to grow into ordered domains. These ordered domains can also form by a continuous ordering mechanism, where local atomic rearrangements occur homogeneously throughout the disordered phase, creating ordered domains. As the temperature is decreased further, the ordered domains grow until...
Series: ASM Handbook
Volume: 4B
Publisher: ASM International
Published: 30 September 2014
DOI: 10.31399/asm.hb.v04b.a0005983
EISBN: 978-1-62708-166-5
... Copper–Nickel Alloys Anneal X X X … 800–1400 (427–760) Exogas (e) Silicon–Copper Alloys Anneal X X X … 1200–1400 (649–760) Exogas (c) , (d) Aluminum Alloys Anneal & Homogenize X X X … 700–1100 (371–593) Exogas (c) , (d) , (e) Low Carbon & Silicon Steels...
Series: ASM Handbook
Volume: 3
Publisher: ASM International
Published: 27 April 2016
DOI: 10.31399/asm.hb.v03.a0006223
EISBN: 978-1-62708-163-4
... mixture (α + β). Adapted from Ref 1 Consider now alloy X 0 in Fig. 21(a) . If the atoms are arranged as a homogeneous phase, the free energy will be lowest as α; that is, G 0α per mole. However, from the above it is clear that the system can lower its free energy if the atoms separate...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003085
EISBN: 978-1-62708-199-3
...”), depending on the conditions of state. State variables include composition, temperature, pressure, magnetic field, electrostatic field, gravitational field, and so forth. The term “phase” refers to that region of space occupied by a physically homogeneous material. However, there are two uses of the term...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001299
EISBN: 978-1-62708-170-2
.... This may occur as oxidation of the bond coat, phase transformation stress deterioration of the zirconia layer, or chemical destabilization of the oxide layer. The severity of these effects depends on the oxidation resistance of the bond coat, the initial crystalline phase mixture of the zirconia coating...