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Plastic deformation

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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 causes, nature, and impact of these defects in metals. It also describes the mechanisms that cause plastic deformation in metals. crystalline imperfections plastic deformation deformation annealing precipitation diffusion sintering point defects line defects planar defects volume defects...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040017
EISBN: 978-1-62708-300-3
... Abstract This chapter discusses the role of plastic deformation in forging and the effect of strain and strain rate on metal flow. It demonstrates the use of stress tensors and shows how metal flow can be represented qualitatively by the displacement of volume elements and quantitatively...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040051
EISBN: 978-1-62708-300-3
.... It then explains how to determine the onset of yielding, which corresponds to the start of plastic deformation and the flow of metal within the workpiece. The chapter then goes on to present two important yield criteria, one based on shear stress (Tresca criterion), the other on distortion energy (von Mises...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smff.t53400027
EISBN: 978-1-62708-316-4
... Abstract This chapter discusses the fundamentals of plastic deformation and the role of strain and strain rate in sheet metal forming processes. It describes the conditions associated with uniform deformation, the significance of engineering and true strain, the effect of volume constancy...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smff.t53400033
EISBN: 978-1-62708-316-4
... and use of forming limit curves and the extensive amount of information they provide. anisotropy flow stress formability forming limit curves plastic deformation sheet forming tensile test WHEN A MATERIAL is deformed, two types of deformation occur: elastic and plastic. The elastic phase...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smff.t53400053
EISBN: 978-1-62708-316-4
... and how hardening laws are used to predict strain-hardening behaviors. elastic strain levy-mises equations plastic deformation sheet metal forming strain hardening strain rate WHEN A MATERIAL is deformed, two types of deformation occur: elastic and plastic. Elastic deformation is always...
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Published: 30 September 2023
Figure 3.11: Examples of contact at low interface pressures with plastic deformation limited to asperity peaks. (a) Initial contact between tooling and workpieces in upsetting; (b) tooling/flange contact in deep drawing; (c) flank face interaction with workpiece in machining. More
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Published: 30 September 2023
Figure 3.14: Contact between die and rough workpiece with plastic deformation of asperities but an elastic substrate. (a) The real area of contact develops to support the normal load; (b) development of material shear strength at the contacting asperities during sliding; (c) effect More
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Published: 30 September 2023
Figure 3.15: Asperity encounters involving plastic deformation. (a) Plowing of a workpiece by a hard asperity; (b) a traveling wave. More
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Published: 01 August 2018
Fig. 12.20 Two limiting cases of anisotropy in plastic deformation, considering (for simplicity) a single active slip system, characterized by slip planes (SP) and slip directions (SD). When subjected to axial tension (AT) in (a) the material will undergo reduction of the width without any More
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Published: 01 September 2008
Fig. 27 Illustration of the plastic deformation of the surface and resultant stress distribution after shot peening. Source: Ref 61 More
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Published: 01 August 1999
Fig. 10.10 (Part 1) Effects of plastic deformation on tempering. 0.4% C (0.43C-0.18Si-0.75Mn, wt%). This is the same steel as that shown in Fig. 10.3 to 10.5 . (a) to (d) Austenitized at 850 °C, water quenched, indented, tempered at 200 °C for 30 min, sectioned. (a) Nital. 250×. (b More
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Published: 01 August 1999
Fig. 10.10 (Part 2) Effects of plastic deformation on tempering. 0.4% C (0.43C-0.18Si-0.75Mn, wt%). This is the same steel as that shown in Fig. 10.3 to 10.5 . (a) to (d) Austenitized at 850 °C, water quenched, indented, tempered at 200 °C for 30 min, sectioned. (a) Nital. 250×. (b More
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Published: 01 November 2007
Fig. 5.3 Increase of yield stress (ys) after plastic deformation (work hardening) More
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Published: 01 October 2011
Fig. 3.25 The effect of plastic deformation (by rolling at 25 °C, or 77 °F) on hardness of pure copper and two brass (Cu-Zn) solid-solution alloys. Source: Ref 3.8 More
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Published: 01 February 2005
Fig. 21.4 Resistance of die steels to plastic deformation at elevated temperatures (values in parentheses indicate hardness at room temperature). Courtesy of Universal Cyclops Steel Corp. and A. Finkl and Sons Co. More
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Published: 01 July 2000
Fig. 7.118 Model of local plastic deformation by dislocation glide producing surface extrusions and intrusions that initiate fatigue cracks. Source: Ref 162 More
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Published: 01 March 2006
Fig. A.37 Plastic deformation as atoms slide over each other. Source: Ref A.11 More
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Published: 01 December 2006
Fig. 7.75 Plastic deformation of the die aperture of copper section dies resulting from high thermomechanical stresses during extrusion. Source: Kabelmetall, Osnabrück More
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Published: 01 August 2012
Fig. 3.2 Homogeneous plastic deformation of a workpiece More