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solid-state transformation

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2012
DOI: 10.31399/asm.tb.pdub.t53420143
EISBN: 978-1-62708-310-2
... Abstract This chapter discusses the characteristics of eutectoid transformations, a type of solid-state transformation associated with invariant reactions, focusing on the iron-carbon system of steel. It describes the compositions, characteristics, and properties of ferrite, eutectoid...
Image
Published: 01 June 2008
Fig. 4.6 Solid-state transformation rate as a function of temperature. Source: Ref 1 More
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 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.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...
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 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 January 2015
DOI: 10.31399/asm.tb.tpmpa.t54480031
EISBN: 978-1-62708-318-8
... transformations occur can vary greatly with alloy content. Grains (crystals) and grain boundaries contain a large number of defects in the form of atom vacancies and dislocations. Such defects have very important effects on the deformation, strength, and solid-state diffusion of metals. Alloying...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 1997
DOI: 10.31399/asm.tb.wip.t65930003
EISBN: 978-1-62708-359-1
...-in.-thick steel plate in 50 passes with the SMAW process will produce a much finer grain size in both the weld and HAZ than a similar weld deposited in 1 pass with the ESW process, which is an extremely high heat input welding process. Influence of Solidification Structure on Solid-State Transformations...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 1999
DOI: 10.31399/asm.tb.lmcs.t66560309
EISBN: 978-1-62708-291-4
... Abstract This chapter examines the effects of welding on the structure of metal, particularly the changes induced in the isothermal regions adjacent to the weld. It presents more than 150 images identifying structures and features associated with fusion and solid-state welding processes...
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 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 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...
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 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...
Series: ASM Technical Books
Publisher: ASM International
Published: 31 December 2020
DOI: 10.31399/asm.tb.phtbp.t59310001
EISBN: 978-1-62708-326-3
..., normalizing, homogenizing, hardening, austempering, quenching, solution treating, and precipitation hardening. Still other heat treatment processes may involve the solid-state addition of other elements into the atomic structure by diffusion processes such as carburizing, carbonitriding, and nitriding...
Image
Published: 01 March 2012
Fig. 6.6 Mechanisms of peritectic reaction and transformation. (a) Lateral growth of a β layer along the α-liquid interface during peritectic reaction by liquid diffusion. (b) Thickening of a β layer by solid-state diffusion during peritectic transformation. The solid arrows indicate growth More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430027
EISBN: 978-1-62708-253-2
... 3.5 shows the cooling curve for pure iron. As shown in this figure, the pure iron isothermally transforms from the liquid to solid state at 1539 °C (2802 °F). From 1539 to 1400 °C (2802 to 2550 °F) δ-iron is present and has a bcc structure. At 1400 °C, the lattice changes from a bcc to an fcc type...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2015
DOI: 10.31399/asm.tb.piht2.t55050001
EISBN: 978-1-62708-311-9
... oscillators more efficient through replacement of the tube rectifiers by solid-state diodes. Development of better transformers for load matching will increase the potential use of solid-state RF power supplies. If the past is used as a basis for projection into the future, the probability is that transistors...