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austenite transformation

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 1999
DOI: 10.31399/asm.tb.lmcs.t66560221
EISBN: 978-1-62708-291-4
... Abstract This chapter discusses the isothermal transformation of austenite to pearlite, bainite, martensite, proeutectoid ferrite, and proeutectoid cementite. It describes the transformation mechanisms in eutectoid, hypoeutectoid, and hypereutectoid steels, the factors that influence nucleation...
Series: ASM Technical Books
Publisher: ASM International
Published: 31 December 2020
DOI: 10.31399/asm.tb.phtbp.t59310055
EISBN: 978-1-62708-326-3
... Abstract The decomposition of austenite, during controlled cooling or quenching, produces a wide variety of microstructures in response to such factors as steel composition, temperature of transformation, and cooling rate. This chapter provides a detailed discussion on the isothermal...
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Published: 01 September 2008
Fig. 17 Influence of heating rate and carbon content on austenitic transformation temperature. Source: Ref 38 More
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Published: 01 November 2007
Fig. 4.10 Sketch of advancing interface as austenite transforms to ferrite More
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Published: 01 January 2015
Fig. 4.6 Calculated fraction austenite transformed to pearlite as a function of time for the parameters shown. Source: Ref 4.2 More
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Published: 01 May 2018
FIG. 4.5 Martensite microstructure. The transformation of austenite to martensite was not understood until much additional research was performed. More
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Published: 01 August 1999
Fig. 12.22 (Part 4) (j) The progression of transformation of austenite to martensite in case-carburized bar during quench hardening. A, case in which there is a uniform carbon gradient; B, case in which the carbon content reaches a maximum slightly beneath the surface. After Ref 20 . More
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Published: 01 August 2013
Fig. 2.5 Isothermal transformation of austenite to pearlite in eutectoid carbon steel. Source: Ref 2.1 More
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Published: 01 August 2013
Fig. 2.6 Isothermal transformation of eutectoid steel from austenite to pearlite ( A - P ) and austenite to bainite ( A - B ). Source: Ref 2.1 More
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Published: 01 August 2018
Fig. 7.31 Schematic presentation of the transformation of austenite in pro-eutectoid cementite and pearlite (P) in conditions close to equilibrium. Steel has hyper-eutectoid composition. Adapted from: Ref 10 More
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Published: 01 December 2018
Fig. 3.13 Transformation of fcc austenite to bct martensite, known as the bain model More
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Published: 01 September 2008
Fig. 31 Dilatometric curves for the transformation of austenite in 20KhGR and 12KhN3A steels. Curves (a) and (b) were after carburizing, and curves (c) and (d) were before carburizing. (a,c) 20KhGR. (b,d) 12KhN3A. The cooling rates are: 1, 0.79; 2, 1.46; 3, 4.6; 4, 5.0; 5, 70; 6, 175 °C/min More
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Published: 01 March 2012
Fig. 15.8 Transformation from austenite to martensite. bct, body-centered tetragonal. Source: Ref 15.2 More
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Published: 01 January 2015
Fig. 12.24 Retained austenite as a function of transformation temperature and time in microstructures produced by isothermal holding of a 0.14% C-1.21% Si-1.57% Mn steel intercritically annealed at 770 °C (1420 °F). Source: Ref 12.61 More
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Published: 01 January 2015
Fig. 17.16 Transformation of retained austenite in an Fe-1.22C alloy as a function of time at three tempering temperatures. Source: Ref 17.29 More
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Published: 01 January 2015
Fig. 21.30 Strain-induced transformation of retained austenite to martensite as a function of strain. As-quenched tempered martensite is dark, retained austenite is white, and strain-induced martensite is orange. Sodium metabisulfite etch, 1000×, light micrographs. Courtesy of Marc Zaccone More
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Published: 01 March 2002
Fig. 2.8 An isothermal transformation diagram for AISI/SAE 1080 steel. A, austenite; F, ferrite; C, cementite; M s , martensite start temperature More
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Published: 01 March 2002
Fig. 2.54 Plate martensite transformation in the primary austenite dendrites of an alloy (Ni-Hard) white cast iron (2.95% C, 0.63% Mn, 0.73% Si, 3.08% Ni, and 2.17% Cr). 4% picral etch. 500× More
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Published: 01 August 2018
Fig. 7.2 Schematic presentation of the transformation of austenite in ferrite in conditions close to equilibrium. Adapted from: Ref 10 More
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Published: 01 August 2018
Fig. 7.13 Schematic presentation of the transformation of austenite in pearlite in conditions close to equilibrium. Steel has a eutectoid composition. P = pearlite. Source: Ref 10 More