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discontinuous 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
... abnormal or discontinuous grain growth. It also examines the key mechanisms that control microstructure evolution during hot working and subsequent heat treatment. These include dynamic recovery, dynamic recrystallization, metadynamic recrystallization, static recovery, static recrystallization, and grain...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003743
EISBN: 978-1-62708-177-1
... or discontinuous grain growth. The latter has also been termed exaggerated grain growth, coarsening, or secondary recrystallization. annealing coarsening cold worked metal grain growth recrystallization solidification RECOVERY, RECRYSTALLIZATION, AND GRAIN GROWTH are the stages that a...
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005428
EISBN: 978-1-62708-196-2
... Abstract The misorientation of a boundary of a growing grain is defined not only by its crystallography but also by the crystallography of the grain into which it is growing. This article focuses on the Monte Carlo Potts model that is typically used to model grain growth, Zener-Smith pinning...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001286
EISBN: 978-1-62708-170-2
... depositing atoms on previously deposited material. The film growth, as well as the nucleation mode, determines many film properties, such as density, surface area, surface morphology, and grain size. Important aspects of film growth are: Continual burial of the surface under newly depositing material...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002359
EISBN: 978-1-62708-193-1
... methods for arbitrarily-shaped flaws. arbitrarily-shaped cracks arbitrarily-shaped flaws crack coalescence crack shape failure prediction method fatigue fatigue crack growth fracture grain size residual stress stress-intensity factor surface cracks three-dimensional surface cracks...
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: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002360
EISBN: 978-1-62708-193-1
... Abstract This article describes the fracture mechanics in fatigue. It discusses the fatigue crack growth rate (FCGR) testing that consists of several steps, beginning with selecting the specimen size, geometry, and crack length measurement technique. The two major aspects of FCGR test analysis...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003317
EISBN: 978-1-62708-176-4
... in different directions ( Ref 18 ). If the experimental crack growth rate data are to be used for life estimates, the orientation of the specimen should be selected to represent loading orientations expected in service. In order to eliminate grain size effects, it is usually recommended that the...
Series: ASM Handbook
Volume: 22B
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.hb.v22b.a0005507
EISBN: 978-1-62708-197-9
.... and Humphreys F.J. , Proc. of the Third Int. Conf. on Grain Growth , Carnegie Mellon University , Pittsburgh, PA , 1998 77. Mattissen D. , In-situ Untersuchung des Einflusses der Tripelpunkte auf die Korngrenzebewegung in Aluminium , Shaker Verlag , Aachen , 2004 78...
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: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002367
EISBN: 978-1-62708-193-1
..., which is employed to investigate the behavior of two hypothetical weldments, namely, a discontinuity-containing weldment and a discontinuity-free weldment. computer model crack growth crack nucleation discontinuity-containing weldment discontinuity-free weldment fatigue resistance weldment...
Series: ASM Handbook
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0001831
EISBN: 978-1-62708-181-8
... materials. The distribution of the microvoids nucleation sites can significantly influence the fracture surface appearance. In some alloys, the nonuniform distribution of nucleating particles and the nucleation and growth of isolated microvoids early in the loading cycle produce a fracture surface that...
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...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003054
EISBN: 978-1-62708-200-6
... reaction sintering and self-propagating, high-temperature synthesis. It also describes several pressure densification methods, including hot isostatic pressing, gas pressure sintering, molten particle deposition, and sol-gel processing. The article concludes with a section on grain growth that discusses...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003731
EISBN: 978-1-62708-177-1
... sufficient driving force for growth is provided by either a fast cooling rate or large undercooling ( Ref 8 ). As Ref 8 describes, The development of the side plate morphology normally starts from a grain boundary allotriomorph (as in the case of steels) and growth occurs into the grain. As cooling rates...
Book Chapter

Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003544
EISBN: 978-1-62708-180-1
... produce, within the grains, striations that are parallel to the crack front. The process of fatigue consists of three stages: Stage I: Initial fatigue damage leading to crack nucleation and crack initiation Stage II: Progressive cyclic growth of a crack (crack propagation) until 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: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003399
EISBN: 978-1-62708-195-5
... composite systems. The third form of damage is microvoid nucleation inside the matrix, followed by their growth and coalescence, leading to matrix rupture. The general sequence of damage is as follows: Damage initiated as interface crack or fiber crack Intense plasticity of the ductile metal matrix...
Series: ASM Handbook
Volume: 2A
Publisher: ASM International
Published: 30 November 2018
DOI: 10.31399/asm.hb.v02a.a0006488
EISBN: 978-1-62708-207-5
... been developed further ( Ref 18 , 19 ). A feature of much MMC material produced by the Osprey route is a tendency toward inhomogeneous distribution of the ceramic particles. It is common to observe ceramic-rich layers approximately normal to the overall growth direction. Among the other notable...