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plastic deformation

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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 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...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smff.t53400033
EISBN: 978-1-62708-316-4
... the development 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...
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...
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 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...
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 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...
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Published: 01 August 2012
Fig. 3.2 Homogeneous plastic deformation of a workpiece More
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Published: 01 August 2012
Fig. 4.13 Some of the flow curve equations used in plastic deformation studies ( Ref 4.3 ) 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 November 2007
Fig. 5.3 Increase of yield stress (ys) after plastic deformation (work hardening) 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 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 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 2004
Fig. 5 Elastic and plastic deformation of a wire with the fingers. With small forces (top), all of the bending is elastic and disappears when the force is released. With greater forces (below), some of the bending is recoverable (elastic), but most of the bending is not recovered (is plastic More
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Published: 01 December 1999
Fig. 8.28 Plastic deformation produced at the (a) case-hardened surface and (b) non-case-hardened surface of shot-peened steels. Both 270× 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 December 1996
Fig. 8-1 Effect of the amount of plastic deformation (as measured by the percent reduction in thickness by rolling) on the tensile mechanical properties of 1016 annealed steel. (Adapted from Metals Handbook , Vol 1, Properties and Selection: Irons and Steels , American Society for Metals More