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slip deformation

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2005
DOI: 10.31399/asm.tb.mmfi.t69540357
EISBN: 978-1-62708-309-6
... Abstract Deformation within a crystal lattice is governed principally by the presence of dislocations, which are two-dimensional defects in the lattice structure. Slip from shear stress is the most common deformation mechanism within crystalline lattices of metallic materials, although...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.tpmpa.t54480095
EISBN: 978-1-62708-318-8
... Abstract Titanium, like other metals, can be shaped, formed, and strengthened through deformation processes. This chapter describes the structural changes that occur in titanium during deformation and how they can be controlled. It discusses the role of slip, dislocations, and twinning, the...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240017
EISBN: 978-1-62708-251-8
... on the specified slip plane relative to the material around it. Fig. 2.9 Combination screw and line dislocations When a mechanical shear load is applied to a metal, it deforms under the applied stress, as shown schematically in Fig. 2.10 . If the load is small, the bonds between the...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.spsp2.t54410213
EISBN: 978-1-62708-265-5
... titanium-gettered iron with body-centered cubic ferritic microstructures. Source: Ref 11.6 , 11.12 The decreased ability to plastically deform at low temperatures is attributed to the inability of screw dislocations to cross slip. The screw dislocations therefore are restricted to their slip...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2005
DOI: 10.31399/asm.tb.mmfi.t69540047
EISBN: 978-1-62708-309-6
... rupture includes various types of mechanisms that may be either brittle or ductile. For example, a brittle stress-rupture failure may occur from grain-boundary embrittlement, while a ductile stress-rupture failure may occur from grain-boundary slip (i.e., time-dependent creep deformation in...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smff.t53400027
EISBN: 978-1-62708-316-4
... deficiencies. Plastic deformation is caused microscopically either by the slip or twinning of atomic layers. These operations do not change the volume of the metal, which would require a permanent change of the lattice dimensions. This fact that the volume must remain constant during plastic...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.spsp2.t54410405
EISBN: 978-1-62708-265-5
... dislocations characteristic of as-quenched low-carbon martensite. This observation, together with the measured activation energy, indicates that carbon atoms have diffused to screw dislocations during deformation and that the pinned screw dislocations are no longer able to cross-slip and generate the new...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240279
EISBN: 978-1-62708-251-8
... applications. Tools are often chrome plated to minimize friction and dirt that can damage the part finish. Lubricants for deep drawing must allow the blank to slip readily and uniformly between the blankholder and die. Stretching and galling during drawing must be avoided. During blank preparation, excessive...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2013
DOI: 10.31399/asm.tb.mfub.t53740103
EISBN: 978-1-62708-308-9
... Abstract This chapter discusses bulk deformation processes and how they are used to reshape metals and refine solidification structures. It begins by describing the differences between hot and cold working along with their respective advantages. It then discusses various forging methods...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2012
DOI: 10.31399/asm.tb.pdub.t53420363
EISBN: 978-1-62708-310-2
... Abstract This appendix provides a detailed overview of the crystal structure of metals. It describes primary bonding mechanisms, space lattices and crystal systems, unit cell parameters, slip systems, and crystallographic planes and directions as well as plastic deformation mechanisms...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2017
DOI: 10.31399/asm.tb.sccmpe2.t55090333
EISBN: 978-1-62708-266-2
... characterized by a high toughness and have no specific crystallographic slip planes. Consequently, they are assumed to be insensitive to the selective corrosion attack of slip planes (as occurs in crystalline alloys) that leads to stress-corrosion cracking (SCC). The plastic deformation of amorphous alloys...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 1999
DOI: 10.31399/asm.tb.lmcs.t66560125
EISBN: 978-1-62708-291-4
... proeutectoid ferrite and cementite. It explains how ferrite and pearlite respond to deformation and how related features such as slip lines, dislocations, shear bands, and kinking can be detected as well as what they reveal. It also describes the structure of patented wires, cast steels, and sintered steels...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240003
EISBN: 978-1-62708-251-8
... most important properties related to crystal structure is ductility. Densely packed structures usually allow motion on one or more slip planes, permitting the metal to deform plastically without fracturing. Ductility is vital for easy formability and for fracture toughness, two properties that give...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230151
EISBN: 978-1-62708-298-3
... between the “a” and “c” directions and accounts for the fact that pyramidal (or c/a) slip does not occur at ambient temperatures. Dislocations that have Burgers vectors with c-axis components are not energetically favored and therefore are not found in samples that have been deformed at low temperatures...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2021
DOI: 10.31399/asm.tb.tpsfwea.t59300013
EISBN: 978-1-62708-323-2
... plastic) deformation in a portion of the contact, and deformation means movement or slip occurs. This slip produces the lines of travel that are evident on the raceway of any used ball bearing. Thus, the F d surface deformation component force friction may become important in some rolling contact...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.spsp2.t54410017
EISBN: 978-1-62708-265-5
... decrease the solubility. Fig. 3.14 The peritectic equilibrium in the Iron-Carbon diagram. Source: Ref 3.24 The preceding sections have shown that the phases that make up steel are crystalline. A very important characteristic of crystals is that they are deformable by a process termed slip...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2020
DOI: 10.31399/asm.tb.bpapp.t59290111
EISBN: 978-1-62708-319-5
..., die compaction, extrusion, injection molding, slip casting, slurry processes, and tape casting. Information on equipment setup, requirements, and the various factors influencing these processes are described. In addition, the chapter provides information on novel approaches and processing costs...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.tb.msisep.t59220403
EISBN: 978-1-62708-259-4
... measured with respect to the specimen initial cross section and is not the true stress reached when necking begins. Ferrite deforms mostly by slip ( Fig. 12.7 ). Twinning marks can be observed in ferrite when very high deformation rates (caused by shock or impact) are used, as shown in Fig. 12.8...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.tb.ssde.t52310173
EISBN: 978-1-62708-286-0
... thinner, the strain is distributed, and local failure is prevented. Austenitic materials have the face-centered cubic (fcc) crystal structure with many slip systems and low stacking fault energies. This means that they can generate many complex arrays of tangled dislocations, which cause strain hardening...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060013
EISBN: 978-1-62708-261-7
... the crystallographic slip planes along which atoms can most easily move, and reduces or impedes the motion of dislocations throughout the crystalline structure. This increases the resistance to plastic or permanent deformation and is one of the methods that can be used to increase the inherent...