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multicomponent alloys

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Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005439
EISBN: 978-1-62708-196-2
... that illustrate how various diffusional processes can be modeled. single-phase modeling multiphase modeling diffusion modeling binary alloys multicomponent alloys MODELING DIFFUSION in alloys can be divided into two activities. One activity is to model the changes in composition and phases...
Image
Published: 01 December 2008
Fig. 11 Hydrogen solubility in liquid multicomponent aluminum alloys at 1 atm hydrogen partial pressure More
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
... Abstract Thermodynamic descriptions have become available for a large number of alloy systems and allow the calculation of the phase diagrams of multicomponent alloys. This article begins with a discussion on three laws of thermodynamics: the Law of Conservation of Energy, the Second Law...
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
.... It informs that one of the aims of CALPHAD methods has been to calculate phase equilibria in the complex, multicomponent alloys that are used regularly by industry. The article discusses the application of CALPHAD calculations to industrial alloys. Modeling of general material properties...
Series: ASM Handbook
Volume: 22B
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.hb.v22b.a0005511
EISBN: 978-1-62708-197-9
... diagrams, it is less efficient for the complicated ternaries and becomes practically impossible for higher-order systems over a wide range of compositions and temperatures. On the other hand, commercial alloys are multicomponents in nature; a more efficient approach is therefore needed in the determination...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005237
EISBN: 978-1-62708-187-0
.... ( Ref 8 ). As an example of the utility of the analytical model, calculated values of C S as a function of f S after complete solidification can be generated in a multicomponent alloy and compared to empirically measured microsegregation profiles. Equations 3 and 4 cannot be used...
Series: ASM Handbook
Volume: 22B
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.hb.v22b.a0005544
EISBN: 978-1-62708-197-9
... for multiphase, multicomponent equilibria. Thermfact and GTT-Technologies http://www.factsage.com Gemini Gibbs Energy MINImizer. Thermodynamic software Thermodata www.gmini.org JMat Pro JMatPro is aimed at multicomponent alloys used in industrial practice. It makes calculations for stable...
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
... 270 1.5 280 1105 160 20 Pt-5%Ru 200 895 130 1.5 130 480 70 25 Pt-10%Ni 380 1585 230 2 220 825 120 30 Pt-8%W 300 1240 180 1.5 180 895 130 25 Pd-40%Ag 220 690 100 1 90 480 70 30 Multicomponent Precious Metal Alloys Multicomponent precious metal...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005215
EISBN: 978-1-62708-187-0
..., as an example, solute (zinc) distribution curves measured for the binary alloy Cu-33%Zn ( Ref 33 ). Figure 5 is an example of solute (copper and silicon) distribution curves for multicomponent and multiphase Al-Si-Cu-Mg, where the solute concentrations in the primary α-phase dendrites were computed...
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
... system. This method has been successfully applied to many multicomponent systems and a number of commercial alloy systems. Phase Diagrams Multicomponent phase diagrams are usually two-dimensional maps of phase stability regions for ranges of temperature and composition. Phase boundaries identify...
Series: ASM Handbook
Volume: 22B
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.hb.v22b.a0005501
EISBN: 978-1-62708-197-9
... are not homogeneous throughout the casting. The solidification path determines the solidification behavior of an alloy. For complex multicomponent alloys, the solidification path is very complicated. Hence, the equilibrium of each phase at different temperatures must be calculated. The thermodynamic and the kinetic...
Series: ASM Handbook
Volume: 22B
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.hb.v22b.a0005525
EISBN: 978-1-62708-197-9
... problem because h ¯ , unlike T , varies continuously with heat extraction. On the other hand, the temperature formulation is much easier to relate to the equilibrium phase diagram to obtain the fraction solid, an advantage even more important in multicomponent alloys with complicated relations...
Series: ASM Handbook
Volume: 22B
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.hb.v22b.a0005536
EISBN: 978-1-62708-197-9
... the article “Modeling Diffusion in Binary and Multicomponent Alloys” in Fundamentals of Modeling for Metals Processing , Volume 22A of ASM Handbook ), diffusion can play an important role in both materials processing and materials degradation during the service life of a part. For example, most heat...
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005430
EISBN: 978-1-62708-196-2
... ∗ is the tracer diffusion coefficient, t is the diffusion time, and M i is the atomic mobility of the i atoms or the movement of atoms in response to a given force, in this case, the result of continuous random movement. (Note that for a multicomponent alloy, the mobility is a function of each component...
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
... equilibria. The article summarizes a rapid method to obtain a thermodynamic description of a multicomponent system. It also provides information on thermodynamically calculated phase diagrams. phase diagram binary stable phase equilibria partition coefficients phase diagram modeling A PHASE...
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
..., and transformation texture development during heat treatment of multicomponent alpha/beta and beta titanium alloys. It includes quantitative description of Burgers orientation relationship and path, discussion of lattice correspondence between the alpha and beta phases, and determination of the total number...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006295
EISBN: 978-1-62708-179-5
... components. It discusses the role of alloying elements in terms of their influence on the activity of carbon, which provides information on the stability of the main carbon-rich phases of iron-carbon alloys, that is, graphite and cementite. The article reviews the carbon solubility in multicomponent systems...
Series: ASM Handbook
Volume: 3
Publisher: ASM International
Published: 27 April 2016
DOI: 10.31399/asm.hb.v03.a0006226
EISBN: 978-1-62708-163-4
... the melt. It provides a discussion on the peritectic structures in iron-base alloys and concludes with information on multicomponent systems. direct precipitation equilibrium freezing iron-base alloys nonequilibrium freezing peritectic alloys peritectic structure peritectic transformation...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005190
EISBN: 978-1-62708-187-0
... determined for the ternary Fe-C- X system, can be extended to multicomponent systems (in this case, the effect of alloying elements on the solubility of carbon can be considered to be additive, as shown in Eq 40 , at least in the region of low concentrations), the saturation concentration of carbon...
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005438
EISBN: 978-1-62708-196-2
... kinetics in multicomponent steels is valuable for alloy design of high-performance steels ( Ref 5 ). Conventional empirical models are limited to composition ranges within a range of known experimental experience. Ghosh and Olson ( Ref 6 ) established a foundation of mechanistic martensitic kinetics, later...