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single-phase microstructure

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.tb.ahsssta.t53700135
EISBN: 978-1-62708-279-2
... 10.1002/srin.201000132 Twins Stacking Faults Twinning-induced plasticity steels consist of a fully austenitic single-phase microstructure that is retained at room temperature by means of a high percentage of alloying elements, such as manganese, aluminum, and silicon. Manganese...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.tb.ahsssta.t53700199
EISBN: 978-1-62708-279-2
... stacking fault energy (SFE). The high strength and ductility result from the complex combination of deformation mechanisms including dislocation glide, martensitic phase transformation (TRIP effect), and mechanical twinning (TWIP effect). Alloy Fe-30Mn possesses an austenite single-phase microstructure...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.tb.ahsssta.t53700023
EISBN: 978-1-62708-279-2
... have two phases (ferrite and iron carbide). Austenitizing steel produces a single phasephase) and this is used as the starting point to control microstructure by heat treating procedures. For carbon steels, cooling transforms the single phase to two phases of widely different compositions...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 1999
DOI: 10.31399/asm.tb.lmcs.t66560005
EISBN: 978-1-62708-291-4
...Abstract Abstract This chapter discusses the development of the nomenclature used to describe the constitution and structure of metals and alloys, particularly the phases observed in the microstructure of steel. It also points out some of the problems with current nomenclature and provides...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.spsp2.t54410579
EISBN: 978-1-62708-265-5
... toughness and ductility and to prevent austenite formation related to the expansion of the gamma loop by carbon. Figure 23.18 shows the polycrystalline, single-phase microstructure of an annealed ferritic stainless steel. Annealing for recrystallization of cold-worked structures is performed...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.sap.t53000025
EISBN: 978-1-62708-313-3
...Abstract Abstract The microstructure of superalloys is highly complex, with a large number of dispersed intermetallics and other phases that modify alloy behavior through their composition, morphology, and distribution. This chapter provides an overview of the most notable phases, including...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1984
DOI: 10.31399/asm.tb.mpp.t67850410
EISBN: 978-1-62708-260-0
... of useful microstructural parameters. Basic measurements include the following: P P = total number of test points in the phase of interest divided by the total number of test points P L = number of point intersections of a test line with features divided by the test-line length N L...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2012
DOI: 10.31399/asm.tb.pdub.t53420087
EISBN: 978-1-62708-310-2
... precipitation structures IF THE TWO-PHASE FIELD in the solid region of Fig. 5.1 is expanded so that it touches the solidus at some point, as shown in Fig. 5.2(a) , complete miscibility of the components is lost. Instead of a single solid phase, the diagram now shows two separate solid terminal phases...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280025
EISBN: 978-1-62708-267-9
... gamma double prime gamma prime microstructure superalloys Groups, Crystal Structures, and Phases Introduction to the Alloy Groups Alloy Elements and Microstructural Effects in Superalloys Microstructure Superalloy Strengthening Function of Processing in Microstructure Development...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2012
DOI: 10.31399/asm.tb.lmub.t53550299
EISBN: 978-1-62708-307-2
... control. Three distinctly different types of microstructures can be obtained by annealing. These are shown in Fig. 6.6 and consist of equiaxed, duplex, and lamellar. Fig. 6.6 Idealized wrought microstructures of (a) single-phase γ, (b) duplex of γ and lamellar, and (c) fully lamellar...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.tb.ahsssta.t53700059
EISBN: 978-1-62708-279-2
.... Microstructure and strength ranges for steel grades of the second generation of AHSS Table 3.3 Microstructure and strength ranges for steel grades of the second generation of AHSS Second-generation AHSS Microstructure Strength range, MPa (ksi) TWIP Single-phase retained austenite 1100–1650...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.tb.msisep.t59220025
EISBN: 978-1-62708-259-4
... Processing, Microstructure and Properties , Int. J. Mat. Res. , Vol 100 , ( No. 8 ), 2009 , p 1031 – 7 The structures observed in steel products are directly dependent on the phase transformations that occur during processing, starting with solidification—in which the liquid phase transforms...
Series: ASM Technical Books
Publisher: ASM International
Published: 31 December 2020
DOI: 10.31399/asm.tb.phtbp.t59310029
EISBN: 978-1-62708-326-3
... dominates the iron-carbon diagram at high temperatures. In all low-alloy steels, therefore, it is possible to produce a single-phase austenite microstructure. This characteristic is important during heat treatment, as cooling from the single-phase austenite field makes possible a wide variety of heat...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.mgppis.t60400023
EISBN: 978-1-62708-258-7
...× Fig. 2.1(d) A microstructure consisting of pearlite (dark), bainite (gray), and martensite (white). 4% picral and 2% nitral etch. 500× Fig. 2.2 The iron-carbon phase diagram. Solid lines indicate Fe-Fe 3 C diagram; dashed lines indicate iron-graphite diagram. Source: Ref 5 Fig...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.tb.cub.t66910021
EISBN: 978-1-62708-250-1
.... The microstructure resulting from the mixture of two elements can vary widely. In some cases the two elements are completely soluble and a homogeneous, single-phase structure is exhibited. Other metals have only limited solubility, and mixtures of these elements result in multiphase materials. One of the most...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2012
DOI: 10.31399/asm.tb.pdub.t53420171
EISBN: 978-1-62708-310-2
... with a single-phase field, α 0 , at temperature T 0 . When the temperature goes below the critical temperature, a miscibility gap exists where a single-phase homogenous microstructure is no longer stable and a two-phase, α 1 + α 2 , structure forms. The phase boundary on the phase diagram at temperature T...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.spsp2.t54410017
EISBN: 978-1-62708-265-5
... microstructure solid solutions steel STEEL CAN BE processed to produce a great variety of microstructures and properties. Desired results are accomplished by heating in temperature ranges where a phase or combination of phases is stable (thus producing changes in the microstructure or distribution...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.sap.t53000059
EISBN: 978-1-62708-313-3
... a significant positive influence on the creep life. Ruthenium has been added to the new generation of single-crystal alloys to suppress dendritic segregation and inhibit topologically close-packed phase (tcp) formation. Lastly, carbon is added for carbide formation, which strengthens grain boundaries...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2012
DOI: 10.31399/asm.tb.pdub.t53420073
EISBN: 978-1-62708-310-2
... and cooling rates are used to generate data for their construction. Because industrial practices almost never approach equilibrium, phase diagrams should be used with some degree of caution. Nevertheless, they are very useful in predicting phase transformations and their resulting microstructures. External...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1984
DOI: 10.31399/asm.tb.mpp.t67850165
EISBN: 978-1-62708-260-0
... in preparing etchants. With pure metals and single-phase alloys, a potential is produced between differently oriented grains, between grain boundaries and grain interiors, between impurity phases and the matrix, or at concentration gradients in the single-phase alloys. With two-phase or multiphased alloys...