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crystallographic orientation

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Series: ASM Handbook Archive
Volume: 10
Publisher: ASM International
Published: 01 January 1986
DOI: 10.31399/asm.hb.v10.a0001759
EISBN: 978-1-62708-178-8
... measurements and subsequent analysis based on Euler plots (i.e., pole figures), orientation distribution functions, and stereographic projections. Using detailed illustrations and examples, it explains the significance of preferred crystallographic orientations and their influence on properties and material...
Series: ASM Handbook
Volume: 10
Publisher: ASM International
Published: 15 December 2019
DOI: 10.31399/asm.hb.v10.a0006660
EISBN: 978-1-62708-213-6
... Abstract The electron backscatter diffraction (EBSD) technique has proven to be very useful in the measurement of crystallographic textures, orientation relationships between phases, and both plastic and elastic strains. This article focuses on backscatter diffraction in a scanning electron...
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
... Abstract Grain boundaries are interfaces between crystallites of the same phase but different crystallographic orientation. They can be characterized as being low angle or high angle. This article discusses the measurements of grain-boundary energy with a brief summary of different schemes...
Series: ASM Handbook Archive
Volume: 10
Publisher: ASM International
Published: 01 January 1986
DOI: 10.31399/asm.hb.v10.a0001767
EISBN: 978-1-62708-178-8
... of the instrumentation and principles of SEM, broadly explaining its capabilities in resolution and depth of field imaging. It describes three additional functions of SEM, including the use of channeling patterns to evaluate the crystallographic orientation of micron-sized regions; use of backscattered detectors...
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
... in technological applications. The article defines the basic kinematic tensors, reports their relations, and presents expressions for calculating the change in crystallographic orientation associated with plastic deformation. It surveys some of the polycrystal models in terms of the relative strength...
Series: ASM Handbook
Volume: 22B
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.hb.v22b.a0005532
EISBN: 978-1-62708-197-9
... Abstract This article discusses the central aspect of anisotropy modeling, namely, texture measurement and analysis. It provides an overview of the methods available for characterizing crystallographic preferred orientation, or texture, in polycrystalline materials. These methods include pole...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003251
EISBN: 978-1-62708-199-3
..., and chemical vapor deposition, also tend to grow in particular crystallographic directions. The properties of materials exhibiting preferred orientations tend to be anisotropic. For example, the forming behavior of sheet metal varies depending on the nature and degree of the preferred orientation produced...
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
...-centered cubic units. Austenite grains follow the stable equilibrium system under natural cooling conditions; below the eutectoid temperature, they transform to pearlite and/or ferrite. During the eutectoid transformation, the crystallographic orientation is reordered. The basic lattice turns to body...
Series: ASM Handbook
Volume: 4E
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.hb.v04e.a0006277
EISBN: 978-1-62708-169-6
..., such as Ti-6Al-4V, uncontrolled VS could lead to the formation of large regions of α colonies with a common crystallographic feature (such as common basal (0001) α pole, or common orientation) called macrozones or strongly microtextured regions, which significantly reduce the fatigue life of titanium alloy...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003729
EISBN: 978-1-62708-177-1
...: Ref 10 The MC technique is based on the minimization of the interface energy of a grain assembly. The microstructure is first mapped on a discrete lattice. Each lattice site is assigned a grain index, an integer from 1 to some number, that indicates the local crystallographic orientation...
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005400
EISBN: 978-1-62708-196-2
... 50% higher than the isostress yield stress for the [001] orientation calculated earlier and 65% above the Sachs average. It is this dependence of the single-crystal yield stress on crystallographic orientation that provides the basis for texture hardening ( Ref 3 ). Schmid's law for the response...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003252
EISBN: 978-1-62708-199-3
... Qualitative and semi-quantitative elemental analyses on microstructural features as small as ∼2 μm Identifying crystalline compounds and determining crystallographic orientations of microstructural features as small as ∼1 μm (recently developed capability—not currently widely used, but likely to become so...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003165
EISBN: 978-1-62708-199-3
... to 1650 °F). As with other hexagonal close-packed (hcp) metals, beryllium displays anisotropic mechanical properties in wrought forms because of crystallographic texture and grain morphology. The traditional ball-milling method of making powder produces flat, crystallographically oriented powder particles...
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
... crystallographic orientations, the growth velocity of the dendrite tips, v *, depends on their angle of inclination with respect to the temperature gradient, θ, according to the expression v * = v T /cosθ. This implies that misaligned dendrites must grow faster than those that are well aligned in order...
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005412
EISBN: 978-1-62708-196-2
... Abstract This article summarizes a physical model of an interface structure and shows how the model helps in optimizing atomistic modeling studies. It presents the orientation relationship of the interface structure to define the mutual crystallographic position of adjacent crystals...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001819
EISBN: 978-1-62708-180-1
...-chromium-molybdenum alloy screw had an erratic structure ( Fig. 13a ), which can be explained by the large grain size and the tendency of the grains to fracture along crystallographic planes. Figure 13(b) shows such fracture planes of differently oriented grains. These planes exhibited...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003742
EISBN: 978-1-62708-177-1
... , 1980 , p 183 – 188 10.1016/0036-9748(80)90091-5 61. Winther G. , Huang X. , and Hansen N. , Crystallographic and Macroscopic Orientation of Planar Dislocation Boundaries—Correlation with Grain Orientation , Acta Mater. , Vol 48 , 2000 , p 2187 – 2198 10.1016/S1359-6454...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003153
EISBN: 978-1-62708-199-3
... High-permeability oriented steel … … 2.9–3.15 7.65 Low core loss at high operating inductions (a) ASTM A 677 only Grain size is important in silicon steel with regard to core losses and low-flux density permeability. However, for high-flux density permeability, crystallographic...
Book Chapter

Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003736
EISBN: 978-1-62708-177-1
... Abstract Martensite is a metastable structure that forms during athermal (nonisothermal) conditions. This article reviews the crystallographic theory, morphologies, orientation relationships, habit plane, and transformation temperature of ferrous martensite microstructures. It examines...
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
... a random spin of s i ∈ {0, Q }. The Monte Carlo Potts model is a generalization of the Ising model ( Ref 4 , Ref 5 , 6 ). The state of the system is discretized into a regular array of lattice sites and is described in terms of the set of Q crystallographic orientations, which...