1-20 of 471 Search Results for

solid-state phase transformation

Sort by
Image
Published: 01 June 1983
Figure 11.29 The solid-state transformation in the iron-rich portion of the Fe–Ni phase diagram ( Metals Handbook , 1973 ). Austenite is labeled γ , ferrite is labeled α . More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2012
DOI: 10.31399/asm.tb.pdub.t53420015
EISBN: 978-1-62708-310-2
... and solid-state phase transformations, and the allotropic nature of metals. interstitial solid solution phase transformations substitutional solid solution THE CRYSTALLINE STATE is an important mode of aggregation of metal atoms. However, assemblies of metal atoms can also exist in the two...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2006
DOI: 10.31399/asm.tb.cw.t51820013
EISBN: 978-1-62708-339-3
... and heat-affected zone (HAZ), solid-state phase transformations during welding, control of toughness in the HAZ, the effects of preheating and postweld heat treatment, and weld discontinuities. This chapter provides information on the classification of steels and the welding characteristics of each class...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240053
EISBN: 978-1-62708-251-8
... of free energy that governs whether or not a phase transformation is possible, and then the kinetic considerations that determine the rate at which transformations take place. The chapter also describes important solid-state transformations such as spinodal decomposition and martensitic transformation...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2011
DOI: 10.31399/asm.tb.jub.t53290099
EISBN: 978-1-62708-306-5
... Abstract During fusion welding, the thermal cycles produced by the moving heat source causes physical state changes, metallurgical phase transformations, and transient thermal stresses and metal movement. This chapter begins by discussing weld metal solidification behavior and the solid-state...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030074
EISBN: 978-1-62708-282-2
... of alloy composition for heat-resistant alloys, nickel corrosion-resistant alloys, and nickel-base alloys. This chapter also discusses the corrosion implications of changing the alloy microstructure via solid-state transformation, second-phase precipitation, or cold work. It concludes with a comparison...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030062
EISBN: 978-1-62708-282-2
... of alloy composition for heat-resistant alloys, nickel corrosion-resistant alloys, and nickel-base alloys. This chapter also discusses the corrosion implications of changing the alloy microstructure via solid-state transformation, second-phase precipitation, or cold work. It concludes with a comparison...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.smnm.t52140165
EISBN: 978-1-62708-264-8
... the relationship between cooling rate, grain size, grain shape, and phase structures. It explains how the transition from liquid to solid state creates the conditions under which microsegregation occurs, and how it impacts the distribution of alloying elements, carbides, and inclusions. The link between...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2012
DOI: 10.31399/asm.tb.pdub.t53420041
EISBN: 978-1-62708-310-2
... energies and chemical potentials, and shows how the equilibrium state of an alloy can be obtained from free-energy curves. binary solid solutions chemical potential Gibbs free energy interatomic bonds phase diagrams single-component systems thermodynamics THERMODYNAMICS is a branch...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.tpmpa.t54480031
EISBN: 978-1-62708-318-8
... the liquidus and the lower one is the solidus. Liquid and solid phases coexist between these two lines. Many alloy systems have diagrams similar to the one in Fig. 2.8 . A number of titanium binary alloy systems are similar, except they also show solid-state transformations (which is discussed later...
Image
Published: 01 December 2006
Fig. 4.14 Time-temperature transformation (TTE) diagram. (a) Principle [ Ber 83 ]. (b) Continuous TTE diagram for AlMgSi0.5. I, solid-solution α (B dissolved in A) in equilibrium; II, solid-solution α (B still dissolved in A) in unstable state; III, second phase β precipitates to an increasing More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2012
DOI: 10.31399/asm.tb.pdub.t53420143
EISBN: 978-1-62708-310-2
... hypoeutectoid structures invariant transformation peritectoid transformation EUTECTOID AND PERITECTOID transformation are classified as solid-state invariant transformations. Invariant transformations are isothermal reversible reactions that occur at an invariant point on the phase diagram of an alloy...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2012
DOI: 10.31399/asm.tb.pdub.t53420073
EISBN: 978-1-62708-310-2
... are completely miscible in each other in both the liquid and solid states. Calculation methods are shown that allow the prediction of the phases present, the chemical compositions of the phases present, and the amounts of phases present. 4.1 Binary Systems Phase diagrams and the systems they describe...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.spsp2.t54410001
EISBN: 978-1-62708-265-5
... into the matrix of iron crystals to produce unique microstructures. Thus, another view of steels is that they are alloys that consist of crystals of iron and other elements. Non-uniformity in microstructure may be a result of solidification or diffusion-controlled solid-state phase transformations, as described...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 1988
DOI: 10.31399/asm.tb.eihdca.t65220047
EISBN: 978-1-62708-341-6
... illustrating capacitor and impedance-matching adjustments when using (a) an autotransformer for high-impedance induction coils and (b) an isolation transformer for low-impedance induction coils Solid-State Inverters With the development of high-power silicon-controlled rectifiers (SCR’s) having rapid...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.tb.ems.t53730011
EISBN: 978-1-62708-283-9
..., a liquid transforms into two solid phases at the same time. When a liquid containing 62% Sn cools, the a and b phases form a eutectic structure of alternating platelets as sketched schematically in Fig. 2.5. In another system, copper and nickel are completely soluble in each other in the liquid state...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240075
EISBN: 978-1-62708-251-8
.... The major eutectic systems include the aluminum-silicon eutectic system and the lead-tin eutectic system. The chapter discusses the construction of eutectic phase diagrams from free energy curves. It also provides information on peritectic, monotectic, and solid-state reactions in alloy systems...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2012
DOI: 10.31399/asm.tb.pdub.t53420001
EISBN: 978-1-62708-310-2
... and arrangement of elements in a material of a given chemical composition. A phase is a physically homogeneous state of matter with a given chemical composition and structure. The simplest examples are the three states of matter (solid, liquid, or gas) of a pure metal. The three phases of a pure metal have...
Series: ASM Technical Books
Publisher: ASM International
Published: 31 December 2020
DOI: 10.31399/asm.tb.phtbp.t59310001
EISBN: 978-1-62708-326-3
... treatment. Steel is notable, because it is very responsive to hardening and strengthening by heat treatment. Atomic Bonding and Crystal Structure Atoms interact with one another to form different states (or phases) of matter. The four fundamental states of matter are solid, liquid, gas, and plasma...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 1998
DOI: 10.31399/asm.tb.ts5.t65900045
EISBN: 978-1-62708-358-4
... alloys, and ceramic systems ( Ref 22 ). The key to identifying a martensitic phase is the nature of the solid-state phase transformation by which the martensite forms. Martensitic phase transformations are accomplished by shearing and cooperative movement of the atoms of the parent phase into the product...