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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...
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
...) an interstitial-free steel ( Ref 24 ) Fig. 9 φ 2 =45° sections of controlled-rolled steels containing the following transformation products. (a) Polygonal ferrite-pearlite. (b) Acicular ferrite. (c) Martensite Fig. 17 Taylor factor map for plane-strain rolling. The hatched region represents...
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
... precipitated from 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...
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
... 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 Fig. 11 Schematic illustration of the thermodynamic origin of the T o curve (above), where the free energies of austenite...
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
... Transformation of Copper Particles in Low Alloy Ferritic and Martensitic Steel , Mater. Trans. JIM , Vol 40 , 1999 , p 268 – 277 10.2320/matertrans1989.40.268 102. Osamura K. , Okuda H. , Ochiai S. , Takashima M. , Asano K. , Furusaka M. , Kishida K...
Series: ASM Handbook
Volume: 1
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v01.a0001008
EISBN: 978-1-62708-161-0
... and the phase transformations that change the structure and properties at varying levels of carbon content. Microstructures described include pearlite, bainite, proeutectoid ferrite and cementite, ferrite-pearlite, and martensite. The article depicts some of the primary processing steps that result in ferrite...
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
... at which transformation of ferrite to austenite is completed on heating; T Ar 1 , temperature at which transformation to ferrite or to ferrite plus cementite is completed on cooling; T Ar 3 , temperature at which transformation of austenite to ferrite begins on cooling; T GC , grain-coarsening...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003203
EISBN: 978-1-62708-199-3
... on annealing of different types of stainless steels such as austenitic, ferritic, duplex, martensitic, and precipitation-hardening, and on the heat treatment of superalloys and refractory metals. It discusses the recommended procedures for solution annealing, austenite conditioning, transformation cooling...
Series: ASM Handbook
Volume: 2
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v02.a0001093
EISBN: 978-1-62708-162-7
... motors 100–355 4–14 45 to 50% Ni iron (a) 1008 steel is used in 0.76 mm (0.030 in.) for all applications in this category. (b) Cold rolled, nonoriented Soft magnetic materials used for transformers Table 16 Soft magnetic materials used for transformers Type Material...
Series: ASM Handbook
Volume: 4A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v04a.a0005771
EISBN: 978-1-62708-165-8
..., nitriding, carbonitriding, and austenitic and ferritic nitrocarburizing, as well as selective-hardening methods, such as laser transformation hardening, electron beam hardening, ion implantation, selective carburizing, and surface hardening with arc lamps. The article also discusses the factors affecting...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001341
EISBN: 978-1-62708-173-3
... of °C/min), the transformation start and end temperatures given by the CCT curves, the amount of each transformation product, and the hardness of the final structure are shown. Ac 3 , 788 °C (1450 °F); Ac 1 , 716 °C (1321 °F). F, ferrite; P, pearlite; B, bainite; M, martensite. Source: Ref 1...
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
... Carburized State The addition of boron increases the hardenability of quenched and tempered steels. However, the extent of hardening depends on the transformation characteristics of austenite to ferrite and the presence of other alloying elements. With the recent availability of advanced...
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
...-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 of long needlelike ferrite laths that protrude...
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
... refinement technologies have been investigated. The control of grain size is directly related to the hot forging temperature and forging finish temperature, which influence thermomechanically deformed grains, recrystallization of austenite, and transformation to ferrite during cooling. These processes...
Series: ASM Handbook
Volume: 1
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v01.a0001032
EISBN: 978-1-62708-161-0
... Products Thermomechanical Treatment (Rolling) Transformation to Ferrite Precipitation and Substructural Strengthening High-Strength Low-Alloy (HSLA) Plate Products In contrast to the plate-rolling process, the thermomechanical treatment possible on a modern bar mill ( Fig. 12 ) is somewhat...
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
... diagram ferrite heat treatment iron-carbon phase diagram isothermal transformation martensite pearlite residual stress steel thermal stress Introduction Constitution of Iron Phases of Heat Treated Steel Transformation Diagrams Isothermal Transformation Diagrams Continuous...
Series: ASM Handbook
Volume: 1
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v01.a0001007
EISBN: 978-1-62708-161-0
... thick slab to 2 mm thick hot strip) with relatively small force. Following hot rolling, the steel transforms into its low-temperature α, or ferrite, phase (plus other constituents). The characteristics of this transformation, which has a significant effect on the mechanical properties of the product...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003090
EISBN: 978-1-62708-199-3
... temperature. Source: Ref 20 Fig. 24 Relationship between transformation temperature and tensile strength of ferrite-pearlite, bainitic, and martensitic steels. Source: Ref 5 Fig. 25 Relationship between bainite lath width (grain size) and yield strength. Source: Ref 5 Fig. 26...
Series: ASM Handbook
Volume: 20
Publisher: ASM International
Published: 01 January 1997
DOI: 10.31399/asm.hb.v20.a0002461
EISBN: 978-1-62708-194-8
... of these factors in both theoretical and practical terms, with particular focus on the role of microstructure in various irons. These include bainite, pearlite, ferfite, martensite, austenite, ferrite-pearlite, ferrite-cementite, ferrite-martensite, graphite, and cementite. The article discusses the evolution...
Series: ASM Handbook
Volume: 1
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v01.a0001025
EISBN: 978-1-62708-161-0
...) Longitudinal impact strength at −85 °C (−120 °F) mm in. J ft · lbf J ft · lbf J ft · lbf HY-80 <50 <2 81 60 47 35 68 50 >50 >2 81 60 34 25 40 30 HY-100 <50 <2 75 55 40 30 68 50 >50 >2 75 55 34 25 40 30 Compositions of ferritic...