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phase transformation

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 1999
DOI: 10.31399/asm.tb.lmcs.t66560029
EISBN: 978-1-62708-291-4
... isothermal transformation and continuous-cooling diagrams and how to recognize the effect of various alloying elements. alloying elements constitutional diagram continuous-cooling diagram isothermal transformation diagram phase transformations It has been established that a microscopical...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240053
EISBN: 978-1-62708-251-8
... Abstract This chapter provides a short introduction to phase transformations, namely, the liquid-to-solid phase transformations that occur during solidification and the solid-to-solid transformations that are important in processing, such as heat treatment. It also introduces the concept...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 1983
DOI: 10.31399/asm.tb.mlt.t62860295
EISBN: 978-1-62708-348-5
.... and h.c.p. phase stability, experimentally determined, of Ar–N 2 and Ar–O 2 mixtures ( Barrett and Meyer, 1965 ; Barrett, Meyer, and Wasserman, 1966 ). Figure 9.22 Cooling rate vs. transformation temperature for a series of Ti–Nb binary alloys ( Jepson et al., 1970 ). Figure 9.26...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2012
DOI: 10.31399/asm.tb.pdub.t53420015
EISBN: 978-1-62708-310-2
... atoms. It discusses the difference between interstitial and substitutional solid solutions and the factors that determine the type of solution that two metals are likely to form. It also addresses the development of intermediate phases, the role of free energy, transformation kinetics, liquid-to-solid...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1996
DOI: 10.31399/asm.tb.phtpclas.t64560003
EISBN: 978-1-62708-353-9
.... 2-25 ) Fig. 2-29 Continuous cooling TTT diagram for an alloy steel, with microstructure shown for four cooling rates. (Adapted from W.W. Cias, Phase Transformation, Kinetics and Hardenability of Medium-Carbon Steels , Climax Molybdenum Co., Greenwich, Conn. (1972), Ref 21 ) Fig...
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Published: 01 August 2018
Fig. 11.46 Hot working with phase transformation on cooling. (a) Conventional: while the structure is controlled during hot working following adequate combinations of temperature and deformation, the final properties of the part are defined in a heat treatment performed afterward. (b More
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Published: 01 December 2003
Fig. 7 Schematic illustration of the phase transformation taking place when hardening steel with sufficient carbon present. Crystal lattice: bcc, body-centered cubic; fcc, face-centered cubic; bct, body-centered tetragonal More
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Published: 01 June 1983
Figure 9.1 Free-energy-vs.-temperature schematic for phase transformation. The equilibrium temperature is T 0 ; the martensite start temperature is T ms . More
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Published: 01 August 2018
Fig. 1.3 The Fe-C phase equilibrium diagram at 1 atm. The phase transformations of Fe are indicated on the vertical axis (0% C), corresponding to pure Fe. The range of temperatures in which FCC (called γ, or austenite) is stable increases with the addition of C up to around 0.8 More
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Published: 01 January 2015
Fig. 4.3 Beta transformation in a eutectoid system. Phase relationships can be predicted by extrapolating the beta phase boundaries below the eutectoid temperature. The beta phase transforms into alpha and an intermetallic phase, gamma. More
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Published: 01 October 2012
Fig. 5.15 Phase transformations on heating through alpha + beta region. Source: Ref 5.3 More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.mgppis.t60400023
EISBN: 978-1-62708-258-7
... Abstract This chapter introduces the basic ferrous physical metallurgy principles that need to be understood by the metallographer. The discussion focuses on the variations in microstructures that are generated as a result of the phase transformations that occur during both heat treatment...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240153
EISBN: 978-1-62708-251-8
... Abstract This chapter examines the isothermal phase transformations of the iron-carbide system. The discussion includes the formation of ferritic, eutectoid, hypoeutectoid, hypereutectoid, bainitic, and martensitic microstructures as well as their properties, composition, and metallurgy...
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Published: 01 January 2015
Fig. 10.1 Hypothetical phase diagrams. Curves originate at the transformation temperature 885 °C (1625 °F) and show the effects of alpha- and beta-stabilizing elements on the α and β transus. More
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Published: 01 May 2018
FIG. 10.14 Edgar C. Bain’s work on isothermal transformation showed a new phase, which was named bainite in his honor. More
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Published: 01 September 2008
Fig. 28 Variation of the specific phase volume of different steel transformation phases as a function of temperature. Source: Ref 69 More
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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 January 2015
DOI: 10.31399/asm.tb.tpmpa.t54480075
EISBN: 978-1-62708-318-8
... Abstract Titanium alloys respond well to heat treatment be it to increase strength (age hardening), reduce residual stresses, or minimize tradeoffs in ductility, machinability, and dimensional and structural stability (annealing). This chapter describes the phase transformations associated...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 1998
DOI: 10.31399/asm.tb.ts5.t65900067
EISBN: 978-1-62708-358-4
... of austenite. The role that diffusion-controlled phase transformations play relative to the hardenability of high-carbon and alloy tool steels is then emphasized. It presents general considerations of transformation diagrams, Jominy curves, and the hardenability of tool steels. The factors related...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.spsp2.t54410197
EISBN: 978-1-62708-265-5
... Isothermal and continuous cooling transformation (CT) diagrams help users map out diffusion-controlled phase transformations of austenite to various mixtures of ferrite and cementite. This chapter discusses the application as well as limitations of these engineering tools in the context of heat...