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antiphase boundaries

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Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005438
EISBN: 978-1-62708-196-2
... provides an estimate of yielding stress. Depending on the strengthening mechanisms, submodels may include the elastic moduli of the matrix and precipitates, antiphase-boundary (APB) energies, lattice mismatch, and others. The calibration of a precipitation-strengthening model should start with these...
Book Chapter

Series: ASM Handbook
Volume: 3
Publisher: ASM International
Published: 27 April 2016
DOI: 10.31399/asm.hb.v03.a0006229
EISBN: 978-1-62708-163-4
... throughout the disordered phase, creating ordered domains. As the temperature is decreased further, the ordered domains grow until they impinge on or intersect each other and form antiphase boundaries (APBs). Antiphase boundaries are boundaries between two ordered domains where the periodicity of the ordered...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003084
EISBN: 978-1-62708-199-3
..., as in Fig. 8 . The length of a superperiod formed by long-period ordering depends on the alloy system and the composition within the system. Figure 7 shows an AuCu II structure having a one-dimensional long-range superlattice, with boundaries between the antiphase domains at intervals of...
Series: ASM Handbook
Volume: 1
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v01.9781627081610
EISBN: 978-1-62708-161-0
Book Chapter

Series: ASM Handbook
Volume: 3
Publisher: ASM International
Published: 27 April 2016
DOI: 10.31399/asm.hb.v03.a0006292
EISBN: 978-1-62708-163-4
... of atomic arrangement. A crystal consists of unit cells stacked tightly together, each identical in size, shape, and orientation with all others. The choice of the boundaries of a unit cell is somewhat arbitrary, being conditioned by symmetry considerations and by convenience. Crystallography uses...
Series: ASM Handbook
Volume: 10
Publisher: ASM International
Published: 15 December 2019
DOI: 10.31399/asm.hb.v10.a0006655
EISBN: 978-1-62708-213-6
... irregular domain or antiphase boundaries. To measure a profile, a detector with a narrow slit or a point aperture must be used to minimize the influence of instrumental broadening. Figure 14 shows an example of a two-dimensional angular profile (intensity versus θ x and θ y ) using a surface...
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005455
EISBN: 978-1-62708-196-2
... particularly the case if the particles are ordered intermetallic compounds (such as γ′-Ni 3 Al in nickel, as in γ-nickel-base superalloys), where resistance to dislocation motion arises not only from differences in Peierls stresses but also from formation of antiphase boundaries. The typical age-hardening...
Series: ASM Handbook
Volume: 10
Publisher: ASM International
Published: 15 December 2019
DOI: 10.31399/asm.hb.v10.a0006680
EISBN: 978-1-62708-213-6
... boundaries or high-density dislocation networks are seen as crystallites. The grains in a powder or in a polycrystalline aggregate can be aggregates of crystallites. In a nanocrystalline material or powder, grain and crystallite are commonly the same entity. X-ray powder diffraction is used to...
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005435
EISBN: 978-1-62708-196-2
... LFE with respect to temperature, pressure, and other relevant thermodynamic variables provide information about the specific heat, entropy, susceptibility, and so on. To study domain walls between different orientational variants (i.e., twin boundaries) or different shuffle states (i.e., antiphase...
Series: ASM Handbook
Volume: 4E
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.hb.v04e.a0006266
EISBN: 978-1-62708-169-6
... solidification. In wrought alloys, homogenization of ingots for subsequent wrought processing is important, because solute inhomogeneity can adversely affect the hot workability (from grain-boundary liquation or cracking) and induce formation of undesired phases as a result of segregation (see also the article...
Series: ASM Handbook
Volume: 10
Publisher: ASM International
Published: 15 December 2019
DOI: 10.31399/asm.hb.v10.a0006643
EISBN: 978-1-62708-213-6
... distributions ○ Defects (microstrain effects) ▪ Lattice distortions ▪ Crystal defects type and quantity ▪ Antiphase boundaries ○ Inhomogeneous strain ○ Sample inhomogeneity ○ Crystallinity ▪ Amorphous state Source: Ref 4 In single crystals, imaging of the internal...
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005415
EISBN: 978-1-62708-196-2
... segregation at various structural defects. Stacking faults, twin boundaries, antiphase domain boundaries, grain boundaries, and ferromagnetic and ferroelectric domain walls belong to the category of homophase interface. The length scales at which these variations occur define the length scales of a...
Series: ASM Handbook
Volume: 4E
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.hb.v04e.a0006287
EISBN: 978-1-62708-169-6
... particles have a noncoherent interface with the matrix and are too coarse to interfere with the movement of dislocations or grain boundaries. Consequently, they provide no strength increase. Constituent particles are generally not beneficial; in most applications, they are positively detrimental...
Series: ASM Handbook
Volume: 13B
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v13b.a0003837
EISBN: 978-1-62708-183-2
... slip systems, inability to promote cross slip, and lack of grain-boundary cohesion. The influence of such factors on the corrosion behavior is not insignificant. Stress generation during the scale growth, scale spallation during thermal cycling, stress corrosion and corrosion fatigue, and finally...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003120
EISBN: 978-1-62708-199-3
... the condition of the grain boundaries, particularly as affected by the carbide-phase morphology and distribution, and in the case of nickel-niobium alloys, additionally by the distribution of the δ phase. Satisfactory properties in Ni-Ti/Al alloys are achieved by optimizing the γ′ V f and...
Series: ASM Handbook
Volume: 10
Publisher: ASM International
Published: 15 December 2019
DOI: 10.31399/asm.hb.v10.a0006644
EISBN: 978-1-62708-213-6
... boundaries, twins, and low-angle grain boundaries, as well as other lattice distortions in crystalline materials of a wide range of chemical compositions and physical properties, such as semiconductors, oxides, metals, and organic materials. The complete name x-ray diffraction topography is a little more...
Series: ASM Handbook
Volume: 10
Publisher: ASM International
Published: 15 December 2019
DOI: 10.31399/asm.hb.v10.a0006681
EISBN: 978-1-62708-213-6