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anisotropic grain

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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
... Carlo systems cannot be emphasized enough. A section then deals with how to ate experimental parameters and how to validate the model by comparing the observed behavior quantitatively with theory. Industrial applications of the model are dealt with next, covering anisotropic grain growth, abnormal grain...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003795
EISBN: 978-1-62708-177-1
... 11 illustrates a microstructure characterized by anisotropically grown grains with an average size of 2 to 4 μm. The resulting texture is caused by a preferred orientation of alumina seed crystals during injection molding. The microstructure of a ceramic sealing disk with a typical residual porosity...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0009002
EISBN: 978-1-62708-185-6
... of Grain Growth–IV. Anisotropic Grain Boundary Energies,” Acta Metall. , Vol 33 , 1985 , p 509 35. Ivasishin O.M. , Shevchenko S.V. , Vasiliev N.L. , and Semiatin S.L. , “3D Monte-Carlo Simulation of Texture Evolution and Grain Growth during Annealing,” Metal Physics...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004028
EISBN: 978-1-62708-185-6
... a threshold shear stress is required to activate dislocations, it turns out that the orientation of the crystals will affect the stress required to deform the aggregate. As a consequence, there is a direct connection between texture and anisotropic mechanical response. Anisotropy means that the response...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002418
EISBN: 978-1-62708-193-1
... on the strengthening. Ductile reinforcements, as well as brittle fibers and anisotropic grains, toughen by means of bridging tractions. Process zone toughening may be characterized by the product of the critical stress for activating the inelastic strain mechanism, σ 0 , the associated stress-free strain, ε T...
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005401
EISBN: 978-1-62708-196-2
... the phase equilibria, crystallography, and deformation behavior of titanium and titanium alloys. The article describes the modeling and simulation of recrystallization and grain growth of single-phase beta and single-phase alpha titanium. The deformation- and transformation-texture evolution of two-phase...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003971
EISBN: 978-1-62708-185-6
... case). (b) Case B, initial, single component texture, weakly anisotropic grain-boundary properties. (c) Case C, initial, single component texture, strongly anisotropic grain-boundary properties. Source: Ref 20 More detailed information on phenomenological and mechanism-based models...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003759
EISBN: 978-1-62708-177-1
... or stereology. The objective of quantitative metallography/stereology is to describe the geometric characteristics of the features (for example, grains, voids, precipitates, dislocations) present in the microstructure in quantitative terms, such as amounts (how much?), numbers (how many?), and sizes (how large...
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005418
EISBN: 978-1-62708-196-2
... considering the macroscopic properties of a polycrystalline metal or alloy, the texture ( Ref 1 ), that is, the crystal orientation distribution, is the primary contributor to elastic and plastic anisotropy arising from the anisotropy of single crystals. Of course, the grain morphology and microstructural...
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
... refers to the directional dependence of properties. The value of a given property of an anisotropic material will differ for any randomly chosen direction. Anisotropy of strength is well appreciated in wood, for example, where the strength is greater along the grain of the wood than it is in a direction...
Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005168
EISBN: 978-1-62708-186-3
... – 343 10.1016/j.msea.2004.08.029 31. Hershey A.V. , The Plasticity of an Isotropic Aggregate of Anisotropic Face Centered Cubic Crystals , J. Appl. Mech. , Vol 21 , 1954 , p 241 – 249 32. Hosford W.F. , A Generalized Isotropic Yield Criterion , J. Appl. Mech. (Trans...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003754
EISBN: 978-1-62708-177-1
.... Attack polished, swab etched with 97% methanol and 3% HNO 3 , and heat tinted at 370 °C (700 °F). (a) Under bright-field illumination, the zirconium is brown-blue and shows some grain orientation. The steel is yellow-green. 15×. (b) Note the difference between the anisotropic zirconium (top...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003720
EISBN: 978-1-62708-177-1
... is on the order of 1 mm to 100 μm. It includes microstructural features at the grain level, without resolving the intricacies of the grain structure. For example, uniformity of case depth is an example of a mesoscale feature. Solidification structures at the mesoscale level include features such as cell sizes...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006117
EISBN: 978-1-62708-175-7
.... , Simulation and Theory of Abnormal Grain Growth – Anisotropic Grain Boundary Energies and Mobilities , Acta Metall. , Vol 37 , 1989 , p 1227 – 1240 55. Yang W. , Chen L. , and Messing G.L. , Computer Simulation of Anisotropic Grain Growth , Mater. Sci. Eng. A , Vol 195 , 1995...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001348
EISBN: 978-1-62708-173-3
... based on theoretical analysis. A discussion on the properties affecting adhesion is also provided. adhesion adhesion energy bonding grain boundary energy interfacial characterization interfacial energy mechanical properties metal adhesion metal-to-ceramic adhesion solid-state welding...
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005424
EISBN: 978-1-62708-196-2
..., including anisotropic distributions of the continuity. Commonly employed methods use tesselations, both regular and irregular, to define the grain geometry and direct mapping of three-dimensional images obtained from experimental characterization (for example, by serial sectioning). Comparison...
Series: ASM Handbook
Volume: 24
Publisher: ASM International
Published: 15 June 2020
DOI: 10.31399/asm.hb.v24.a0006573
EISBN: 978-1-62708-290-7
... 16 – 18 ), and substructures for crowns and bridges ( Ref 19 , 20 ) from metallic and ceramic powdered materials. Depending on the AM technology employed, the microstructure and resulting properties of the 3D-printed parts vary: a columnar structure with anisotropic properties or equiaxed grains...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003049
EISBN: 978-1-62708-200-6
..., and the features that provide exceptional damage tolerance (such as large, anisotropic grains) are not the same features that maximize strength (typically small, equiaxed grains). Power generation systems include stationary engines, heat-recovery systems, burners and combustors, waste incineration systems...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003358
EISBN: 978-1-62708-195-5
... Coarse F12 1700 (0.068 in.) Good wear resistance Lowest benefit to resultant properties High ductility and ease of manufacturing Great for armor applications Whisker reinforcements Fine (submicron) … … Highest resultant properties in the fiber direction Highly anisotropic...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003732
EISBN: 978-1-62708-177-1
... to solidification. Materials that are elastically anisotropic form spinodal structures that are developed preferentially along elastically soft directions. Figure 8 illustrates calculated two-dimensional (2-D) and three-dimensional (3-D) time developments for the structure for an iron-molybdenum alloy ( Ref 6...