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Book Chapter

By Vladimir Segal
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004016
EISBN: 978-1-62708-185-6
... Abstract This article describes the mechanics and processing characteristics of equal-channel angular extrusion (ECAE). Tool design considerations for the ECAE are discussed. During ECAE, severe plastic strains and simple shear deformation mode contribute to strong, sometimes unusual effects...
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Published: 01 January 2005
Fig. 3 Cyclic extrusion-compression (a) and equal-channel angular extrusion (b) More
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Published: 01 January 2005
Fig. 2 Equal-channel-angular extrusion More
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Published: 01 January 2005
Fig. 5 Slip lines for equal-channel angular extrusion with friction More
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Published: 01 January 2005
Fig. 6 Slip lines for equal-channel angular extrusion (a) without friction and (b) with maximum friction, 2θ=90° More
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Published: 01 January 2005
Fig. 7 Slip lines for equal-channel angular extrusion without friction in the first channel and with maximum friction in the second channel, 2θ=90° More
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Published: 01 January 2005
Fig. 8 Slip lines for equal-channel angular extrusion with round corner channels More
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Published: 01 January 2005
Fig. 10 Equal-channel angular extrusion of (a) elongated billets and (b) flat billets More
Book Chapter

By S.L. Semiatin
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003971
EISBN: 978-1-62708-185-6
... Roll forging Cross rolling Surface rolling Shear forming Tube reducing Radial roll forming Extrusion Nonlubricated hot extrusion Lubricated direct hot extrusion Hydrostatic extrusion Co-extrusion Equal channel angular extrusion Drawing Drawing Drawing...
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Published: 01 January 2005
Fig. 13 Die designs. (a) Solid block. (b) Three movable walls in the first channel. (c) Two movable walls in the first channel and movable bottom wall in the second channel. (d) Continuous equal-channel angular extrusion More
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Published: 01 January 2005
Fig. 15 Micrographs of sections of canned samples of cast plus hot isostatically pressed Ti-45.5Al-2Cr-2Nb deformed via equal channel angular extrusion at (a) 1150 °C (2100 °F) or (b) 1250 °C (2280 °F). Source: Ref 87 More
Book Chapter

By David Dye
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
...-called grain co-rotation scheme in Al7554 ( Ref 30 ), which particularly affect the evolution of low-angle misorientations and, overall, act to soften the textures produced by compression testing. Grain subdivision during high shear processing (equal-channel angular extrusion, or ECAE) has also been...
Book Chapter

By S.L. Semiatin
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004001
EISBN: 978-1-62708-185-6
... process Workability-limited process parameter selection Conventional steel tooling Can/decan costs; can design Wide working temperature range Preform/extrusion diameter trade-off Refined microstructure High product yield Large experience base Equal-channel angular extrusion High rate...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004019
EISBN: 978-1-62708-185-6
... are developed, eventually giving rise to an equiaxed structure of high-angle boundaries. Such a mechanism forms the basis for grain refinement in so-called severe-plastic-deformation processes such as equal channel angular extrusion ( Ref 19 , Ref 20 , Ref 21 ). This mechanism of grain refinement is sometimes...
Book Chapter

Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004031
EISBN: 978-1-62708-185-6
.... A mechanism for removing work or stress. material from between the dies. equal channel angular extrusion (ECAE). ber texture. Crystallographic texture in which Metalworking operation comprising the all or a large fraction of the crystals in a ejector rod. A rod used to push out a formed extrusion of a billet...
Book

Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.9781627081856
EISBN: 978-1-62708-185-6
Book Chapter

By S.L. Semiatin
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0009002
EISBN: 978-1-62708-185-6
... to an equiaxed structure of high-angle boundaries. Such a mechanism forms the basis for grain refinement in so-called severe plastic deformation (SPD) processes such as equal channel angular extrusion (ECAE) ( Ref 4 , Ref 5 , Ref 6 ). This mechanism of grain refinement is sometimes called continuous dynamic...
Book

Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.9781627081863
EISBN: 978-1-62708-186-3
Book Chapter

Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005155
EISBN: 978-1-62708-186-3
... reserved. DOI: 10.31399/asm.hb.v14b.a0005155 www.asminternational.org Glossary of Terms A angularity. The conformity to, or deviation B from, speci ed angular dimensions in the abnormal grain growth. Rapid, nonuniform, cross section of a shape or bar. backward extrusion. Same as indirect extru- and usually...
Book Chapter

Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005117
EISBN: 978-1-62708-186-3
... clearance. D, E, and F show similar metal with insufficient clearance. G and H show hard metal with sufficient clearance. I shows the effect of dull cutting edges. Fig. 3 Chart for determining effect of angular shear Fig. 4 Chart for determining energy required in shearing Figure...