Overview of SPD Techniques

Severe Plastic Deformation (SPD) is an approach that refines grains and other structural features through plastically deformig materials to a very large strain.

Batch Processing: ABE, ECAP , HPT, HPTT, MCF, RCS, SSE, TE , CEE
Continuous SPD: ARB, Conshearing, C2S2, ECAP_Conform

ABE

Accumulative Back Extrusion (ABE)

References:

Fatemi and Zarei-Hanzaki, Mater. Sci. Eng. A 504, 104 (2009).
Fatemi and Zarei-Hanzaki, Mater. Sci. Eng. A 528, 1334 (2011).


 


Equal Channel Angular Pressing (ECAP)

Othe names:
Equal Channel Angular Extrusion (ECAE)
Equal Channel Angular (ECA)
Equal Channel Angular Forging

References:
Furukawa et al, J. Mater. Sci. 36, 2835 (2001).
Valiev et al, Prog. Mater. Sci. 45, 103 (2000).
Zhu & Lowe, Mater. Sci. Eng. A291, 46 (2000).




Unonstrained HPT

Constrained HPT

High Pressure Torsion (HPT)

Old Name:
Severe Plastic Torsional Straining (SPTS)

References:
Zhilyaev et al, Acta Mater. 51, 753 (2003).
Valiev et al, J. Mater. Res. 17, 7 (2002).
Jiang et al, Mater. Sci. Eng. A290, 128 (2000).

 

 

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HPTE

HPTE

High Pressure Torsion Extrusion (HPTE)

References:

Ivanisenko et al, Mater. Sci. Eng. A664, 247 (2016).

 

 

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HPTT

High-Pressure Tube Twisting (HPTT)

Reference:
Toth et al, Scripta Mater. 60, 175 (2009).

 

 

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Multipass Coin-Forging (MCF)

Reference:
Ghosh & Huangl, in Investigation and Application of Severe Plastic Deformation, Lowe & Valiev, ed., Kluwer Academic Publishers, Dordrecht. p.29, 2000.

 

 

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Repetitive Corrugation and Straightening (RCS)

Other Names:
Constrained Groove Pressing (CGP)
Repeated Shear Deformation (RSD)

References:
Zhu et al, Metall. Mater. Trans. 32A, 1559 (2001).
Huang et al, Acta Mater. 49, 1497 (2001).
Shin et al, Mater. Sci. Eng. A328, 98 (2002)
Huh et al, Mater. Sci. Forum. 396, 447 (2002).
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sse

Simple Shear Extrusion (SSE)

References:
Pardis andEbrahimi, Mater. Sci. Eng. A527, 355 (2009)


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Twist Extrusion

Twist Extrusion (TE)

Reference:
Beygelzimer, et al; Ultrafine Grained Materials II. (TMS), pp. 297--304 (2002).

V. Varukhin, Y. Beygelzimer, S. Synkov, D. Orlov. Applications of Twist Extrusion, Materials Science Forum, Vol. 503-504, pp. 335--340 (2006).

http://hunch.net/~yan/twist.extrusion.html

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Continuous SPD Techniques




Accumulative Roll Bonding (ARB)

Reference:
Tsuji et al, Scripta Mater. 40, 795 (1999).

 

 

 

 

 

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Conshearing Process

 

Reference:
Saito et al, Scripta Mater. 42, 1139 (2000).

 

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Continuous Confined Strip Shearing (C2S2)

Reference:
Lee et al, Acta Mater. 50, 4005 (2002)

 

 

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ECAP-Conform

Reference:
Raab et al, Mater. Sci. Eng. A328, 30 (2004).

 

 

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CEE
Cyclic Expansion-Extrusion (CEE)

References:
N. Pardis, et al, Mater. Sci. Eng., A628, 423 (2015); A613, 357 (2014); A528, 7537 (2011).

 

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