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austenite grain growth

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Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004019
EISBN: 978-1-62708-185-6
... Abstract Recovery, recrystallization, and grain growth are microstructural changes that occur during annealing after cold plastic deformation and/or during hot working of metals. This article reviews the structure of the deformed state and describes the changes in the properties and...
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
... Abstract This article discusses the stable and metastable three-phase fields in the binary Fe-C phase diagram. It schematically illustrates that austenite decomposition requires accounting for nucleation and growth of ferrite and then nucleation and growth of pearlite in the remaining...
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
... ferrite plates formed are free from carbides. As growth proceeds, adjacent plates are separated by films of austenite forming arrangements commonly described as sheaves. The carbon rejected after the growth of acicular ferrite accumulates into the remaining austenite, eventually stabilizing it against...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002352
EISBN: 978-1-62708-193-1
..., growth rates, and striation spacings of fatigue crack. The mechanisms of fatigue striation formation are also discussed. The fatigue crack growth in duplex microstructures and cyclic crack growth in polymers are reviewed. The article also describes the mechanisms and models of fatigue crack closure...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003309
EISBN: 978-1-62708-176-4
... environmentally assisted crack growth of polymers is also included. The article details the evaluation of nanoscale environmental effects and indentation-induced cohesive cracking. It also provides information on scanning probe microscopy. hydrogen embrittlement stress-corrosion cracking corrosion fatigue...
Series: ASM Handbook
Volume: 22B
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.hb.v22b.a0005518
EISBN: 978-1-62708-197-9
... approach of equiaxed eutectic solidification ( Ref 30 ). This model was developed to calculate the cooling curves during a casting process of a lamellar cast iron. It was based on a combination of analytical expressions giving the rates of nucleation and growth of equiaxed eutectic grains as a function of...
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
... binary phase diagram. It also describes the effects of austenite grain size, and provides useful information on controlling the austenite grain size using the thermomechanical process. austenite austenitizing grain growth steel References 1. Campbell F.C. , Ed...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006304
EISBN: 978-1-62708-179-5
... Abstract The solidification of hypoeutectic cast iron starts with the nucleation and growth of austenite dendrites, while that of hypereutectic iron starts with the crystallization of primary graphite in the stable system or cementite in the metastable system. This article begins with a...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004020
EISBN: 978-1-62708-185-6
... stress behavior, concurrent grain growth, and high stress behavior. ambient temperature creep mechanisms diffusion creep diffusional flow dislocation creep Nabarro-Herring creep strain hardening CONSTITUTIVE RELATIONS for metalworking include elements of behavior at ambient temperature as...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005213
EISBN: 978-1-62708-187-0
... article also describes the growth of eutectic in cast iron in terms of isothermal solidification, directional solidification, and multidirectional solidification. cast iron directional solidification multidirectional solidification nucleation solidification liquid iron-carbon alloys austenite...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002400
EISBN: 978-1-62708-193-1
... cementite are stable. The cementite particles effectively retard austenite grain growth and reduce the carbon content of the austenite, causing the type of microstructure shown in Fig. 2 to form on quenching. Specimens reheated to above the A cm may show grain refinement, depending on the temperature...
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005609
EISBN: 978-1-62708-174-0
... Abstract This article reviews the fundamental solidification concepts for understanding microstructural evolution in fusion welds. The common concepts, namely, nucleation, competitive grain growth, constitutional supercooling, solute redistribution, and rapid solidification, depend on the...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002410
EISBN: 978-1-62708-193-1
... Temperature Crack Growth in Ni Base Alloys , Metall. Trans. A , Vol 9A ( No. 2 ), Feb 1978 , p 231 – 233 10.1007/BF02646705 49. Bartos J. and Antolovich S.D. , Effect of Grain Size and γ′ Size on FCP in René 95 , Fracture 1977 , Vol 2 , Taplin D.M.R. , Ed., University of...
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005403
EISBN: 978-1-62708-196-2
... dynamic recrystallization (DDRX). The article discusses the assumptions and simplifications for the Avrami analysis. It describes the effects of nucleation and growth rates on recrystallization kinetics and recrystallized grain size based on the Johnson-Mehl-Avrami-Kolmogorov model for static...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003744
EISBN: 978-1-62708-177-1
... Abstract This article describes the mechanisms involved in creating texture for various metal-fabrication processes, namely, solidification, deformation, recrystallization and grain growth, thin-film deposition, and imposition of external magnetic fields. It discusses two experimental and...
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
... growth of austenite grains/dendrites may enrich the carbon level in the remaining liquid phase. In contrast, nucleation of a solid phase in a hypereutectic composition begins with graphite formation followed eventually by some austenite formation during solidification. With a eutectic composition, an...
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
... growth at high temperature and/or alloying to allow special thermomechanical conditioning of the microstructure. For example, to retard the growth of austenite grains during hot working of steels, aluminum is added to allow precipitation of aluminum-nitrogen precipitates that retard grain growth. Other...
Series: ASM Handbook
Volume: 4D
Publisher: ASM International
Published: 01 October 2014
DOI: 10.31399/asm.hb.v04d.a0005982
EISBN: 978-1-62708-168-9
.... , McMahon C.J. Jr. , Modes of Fracture in Temper Embrittled Steels , Acta Metall. , Vol 23 , 1975 , p 337 – 386 10.1016/0001-6160(75)90131-5 38. Ando T. , “Isothermal Growth of Grain Boundary Allotriomorphs of Cementite in Ternary Fe-C-Cr Austenite,” Ph.D. thesis, Colorado School...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003723
EISBN: 978-1-62708-177-1
... which are useful in determining the conditions for proper heat treatment (solid-state transformation) of metals and alloys. The influence of the mechanisms of phase nucleation and growth on the morphology, size, and distribution of grains and second phases is also described. bainite eutectic...
Series: ASM Handbook
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0000610
EISBN: 978-1-62708-181-8
... overheating at 1355 °C (2475 °F) for 45 min after the first blooming-mill pass caused excessive grain growth; the second pass then resulted in intergranular fracture. See also Fig. 615 . 0.67× Fig. 615 Higher-magnification view of fracture surface in Fig. 614 . This bloom fractured during rolling...