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ferrite transformation

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Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006300
EISBN: 978-1-62708-179-5
... untransformed volume. The article describes the austenite decomposition to ferrite and pearlite in spheroidal graphite irons and lamellar graphite irons. It provides a discussion on modeling austenite decomposition to ferrite and pearlite. austenite decomposition austenite-to-pearlite transformation...
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Published: 01 October 2014
Fig. 19 Effect of boron on ferrite transformation in isothermal diagrams of (a) 1036 steel and (b) 10B36 steel. Source: Ref 11 More
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Published: 01 August 2013
Fig. 10 Effect of heating rate on the temperature at which ferrite transforms to austenite (Ac 3 ) in pure iron. The Curie temperature is also shown (Ac 2 ). Reprinted from Ref 18 More
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Published: 01 December 2008
Fig. 28 Transformation of δ-ferrite to austenite and σ-phase upon exposure of a solution-treated CF8 casting to elevated temperature More
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Published: 31 August 2017
Fig. 7 Effect of silicon on the ferrite α-to-austenite γ transformation temperature of unalloyed steel and cast iron More
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Published: 30 August 2021
Fig. 21 Effect of silicon on the ferrite (α) to austenite (γ) transformation temperature of unalloyed steel and cast iron More
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Published: 01 January 1996
Fig. 20 SEM metallographic/fractographic interface for type 308 shielded-metal arc welds. (a) In the unaged condition, microvoids are nucleated by δ-ferrite and silicon-rich inclusions. (b) After aging δ-ferrite transformation products, σ-phase (white phase) and M 23 C 6 carbides (on prior More
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Published: 01 October 2014
Fig. 20 Investigation of MnS and VN precipitates and relation with ferrite transformation. Source: Ref 30 More
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Published: 09 June 2014
Fig. 4 Ferrite core encapsulated transformer. Courtesy of Jackson Transformer Company More
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Published: 01 December 2004
Fig. 2 Austenite grains (transformed to pearlite) outlined by ferrite network in the as-cast structure. 40×. Source: Ref 2 More
Series: ASM Handbook
Volume: 4D
Publisher: ASM International
Published: 01 October 2014
DOI: 10.31399/asm.hb.v04d.a0005962
EISBN: 978-1-62708-168-9
..., granular, and bainitic ferrite, which form at different transformation temperatures. Gamma-Iron (γ-Fe) The γ-Fe or austenite phase forms at elevated temperatures. It has a face-centered cubic (fcc) crystal structure. Ferrite undergoes a polymorphic transformation to austenite at temperatures...
Series: ASM Handbook
Volume: 4A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v04a.a0005786
EISBN: 978-1-62708-165-8
... carbon concentration prior to quenching and enhances wear resistance in ball-bearing applications. Austenitizing may involve plain carbon or low-alloy steels, where the transformations that occur upon heating primarily involve ferrite transformation and dissolution of cementite, or higher alloy...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003995
EISBN: 978-1-62708-185-6
... that the austenite transforms to a fine-grain ferrite in the final as-rolled product. Similar concepts also apply to steel bar and forgings, although TMP applications for these types of microalloying steel products have lagged behind that of flat-rolled steels products. The basic objective of TMP, regardless of form...
Series: ASM Handbook
Volume: 4A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v04a.a0005819
EISBN: 978-1-62708-165-8
... ferrite heat treatment iron-carbon phase diagram isothermal transformation martensite pearlite residual stress steel thermal stress Introduction Heat treatment is roughly defined as controlled heating and cooling of a solid material, so as to change the microstructure and obtain specific...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004029
EISBN: 978-1-62708-185-6
... Abstract The processing of steel involves five distinct sets of texture development mechanisms, namely, austenite deformation, austenite recrystallization, gamma-to-alpha transformation, ferrite deformation, and static recrystallization during annealing after cold rolling. This article provides...
Series: ASM Handbook
Volume: 4D
Publisher: ASM International
Published: 01 October 2014
DOI: 10.31399/asm.hb.v04d.a0005963
EISBN: 978-1-62708-168-9
... be encountered in areas where an unprotected boron addition is made to modify other properties, for example, ductility or formability in low-carbon steels. Boron Hardenability Mechanism Boron increases hardenability by retarding the transformations to bainite, ferrite, and pearlite (each of which...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006343
EISBN: 978-1-62708-179-5
... the liquid melt. The article describes the macrostructure and dendrite morphology of primary austenite. Eutectoid transformation in the solid state causes the transformation of austenite to pearlite and/or ferrite, producing the as-cast structure. The article discusses the observations of the graphite...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006319
EISBN: 978-1-62708-179-5
... precipitated, the transformation stops and a relatively constant proportion of ferrite and reacted austenite is found over a period. This cessation of ferrite formation is an incomplete reaction phenomenon that prevents the equilibrium phases from reaching minimum energies. The explanation of this phenomenon...
Series: ASM Handbook
Volume: 4D
Publisher: ASM International
Published: 01 October 2014
DOI: 10.31399/asm.hb.v04d.a0005994
EISBN: 978-1-62708-168-9
... of austenite, and transformation to ferrite during cooling. These processes are influenced by alloying elements and their carbide and nitride precipitates. Therefore, all aspects of the process—alloy design, thermal processing, forming, and cooling—should be otally controlled in order to achieve the optimal...
Series: ASM Handbook
Volume: 1
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v01.a0001034
EISBN: 978-1-62708-161-0
..., and subsequent cooling will lead to the formation of α-ferrite. During the austenite-to-ferrite transformation, proeutectoid ferrite forms first along the austenite grain boundaries; this is known as grain-boundary ferrite. Subsequent to grain-boundary ferrite formation, ferrite sideplates develop in the form...