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polycrystalline metals

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Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003784
EISBN: 978-1-62708-177-1
...Abstract Abstract Pure metals normally solidify into polycrystalline masses, but it is relatively easy to produce single crystals by directional solidification from the melt. This article illustrates the dislocations present in a metal crystal, which is often polygonized into sub-boundaries...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003426
EISBN: 978-1-62708-195-5
... Abstract Good hole-drilling processes are key to joining composite parts with other composite parts or with metal parts. This article discusses the considerations for drilling polymer-matrix composites. It describes the use of power-feed drill motors and automated drilling/fastener installation equipment...
Series: ASM Handbook Archive
Volume: 10
Publisher: ASM International
Published: 01 January 1986
DOI: 10.31399/asm.hb.v10.a0001756
EISBN: 978-1-62708-178-8
... Chemical kinetics State of polycrystalline aggregate Preferred orientation Texture (a) Source: Ref 3 Line profile<xref rid="a0001756-t5-fn1" ref-type="table-fn">(a)</xref> Table 5 Line profile (a) Controlled by: State of crystallite perfection and sample...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003721
EISBN: 978-1-62708-177-1
..., a polycrystalline single-phase metal has a grain structure, and within each grain a substructure may be present, or, in a polycrystalline long-range ordered binary alloy, a substructure of antiphase boundaries may exist within each grain. In a forging, the macroscopic flow lines may coexist with a structure...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003730
EISBN: 978-1-62708-177-1
.... In the broadest sense, substructures comprise all imperfections within the grains of polycrystalline metals or even single-phase alloys. Conventionally, substructure refers to subboundaries (low-angle boundaries), crystal imperfections (dislocations and stacking faults), and substructure impurity (solute...
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
... 10.1016/S0921-5093(01)01393-4 6. Reade R.P. , Berdahl P. , Russo R.E. , and Garrison S.M. , Laser Deposition of Biaxially Textured Yttria-Stabilized Zirconia Buffer Layers on Polycrystalline Metallic Alloys for High Critical Current Y-Ba-Cu-O Thin-Films , Appl. Phys. Lett...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003001
EISBN: 978-1-62708-200-6
...) Chill cast specimen 90.2 by 24.6 by 24.6 mm (3.55 by 0.97 by 0.97 in.). (aaaa) At 23 °C (73 °F). (bbbb) From 25 to 1000 °C (77 to 1830 °F), for iodide thorium. (cccc) At 100 °C (212 °F). (dddd) From 0 to 100 °C (32 to 212 °F), for polycrystalline metal. (eeee) At 0 °C (32 °F...
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: 2
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v02.a0001106
EISBN: 978-1-62708-162-7
..., lapping, and polishing steps. Polycrystalline Diamond With a Metallic Second Phase The microstructure of sintered PCBN is shown in Fig. 8 . The major phase is CBN with a metallic second phase from the liquid sintering process. With respect to chemical composition and chemical reactivity (oxidation...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001285
EISBN: 978-1-62708-170-2
... are noncrystalline materials such as oxides, nitrides, and oxynitrides of silicon ( Ref 1 ), and crystalline materials such as polycrystalline silicon ( Ref 2 , 3 , 4 ), epitaxial silicon ( Ref 5 , 6 , 7 ), and refractory metals and their silicides. All of these materials are extensively used in microelectronic...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.9781627081764
EISBN: 978-1-62708-176-4
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004018
EISBN: 978-1-62708-185-6
..., takes place considerably faster than conventional static recrystallization. In polycrystalline metals, grain-boundary sliding is constrained to small amounts by irregularities in the boundary plane and by adjacent grains that block each end of the shearing boundary. Large accumulated plastic strains...
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005458
EISBN: 978-1-62708-196-2
... are instructive but somewhat oversimplified, because the deformation of metallic alloys is not uniform everywhere. For example Fig. 2 shows the results of finite-element analysis calculations for the strain distribution in polycrystalline metals composed of strain-hardening grains of different orientations...
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
... of the straight line relating the flow stress of a polycrystalline metal to the inverse square root of grain size. For nickel, K HP is 158 MPa · μm 1/2 ( Ref 65 ). Note that D av GNB ( i ) is a slip distance that is related to the perpendicular spacing, D av GNB . Since...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003254
EISBN: 978-1-62708-176-4
... COS λ. Note: plastic flow on a given slip system will initiate when τ R &gt; τ CRSS In polycrystalline metals, plastic flow typically does not occur at a constant stress. In contrast, an increased stress must be applied to produce additional deformation, as shown in Fig. 4 . This trend can...
Series: ASM Handbook
Volume: 10
Publisher: ASM International
Published: 15 December 2019
DOI: 10.31399/asm.hb.v10.a0006670
EISBN: 978-1-62708-213-6
... resistances and band gaps within the semiconducting range. These semiconductors are commonly transition metal oxides that are typically polycrystalline or polyphasic. Some oxides form naturally on metallic surfaces, but fabrication by other methods is typically utilized for commercial quality and processing...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003424
EISBN: 978-1-62708-195-5
..., diamond plated, brazed diamond, diamond coated carbide, and polycrystalline cutting tools. The article also describes cutting tool materials that are used for peripheral milling, face milling, and the trimming of polymer-matrix composites. machining carbon fiber-reinforced epoxy epoxy thermoset...
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
.... , Embedded Polycrystal Plasticity and Adaptive Sampling , Int. J. Plast. , Vol 24 , 2008 , p 242 – 266 18. Dawson P.R. , Boyce D.E. , and Rogge R.B. , Issues in Modeling Heterogeneous Deformations in Polycrystalline Metals Using Multiscale Approaches , Comput. Model. Eng. Sci...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.9781627081771
EISBN: 978-1-62708-177-1
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006306
EISBN: 978-1-62708-179-5
... and hardness of austempered ductile iron metal matrix. Source: Ref 25 Fig. 32 Pearlitic compacted graphite iron tool life in number of bores for different cutting tool materials. PCD, polycrystalline diamond; PCBN, polycrystalline cubic boron nitride. Source: Ref 34 Fig. 31 Cutting tool...