Structural evolution of a strip-cast al alloy sheet processed by continuous equal-channel angular pressing

Ultra-fine grained and high hardened Al sheet was obtained by Equal Channel Angular Pressing (ECAP). During this process the microstructure, the hardness and the texture of AA 1050 Al alloy sheet are changed by a severe shear deformation. The plastic strain ratio after the ECAP and subsequent heat-treatment condition was investigated in this study. It was found that the average r-value of the equal channel angular pressed and subsequent heat-treated specimen was 1.7 times higher than that of the initial Al sheet. This could be attributed to the various texture formations through the ECAP and subsequent heat-treatment of AA 1050 Aluminum alloy sheets.

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Effect of Equal-Channel Angular Pressing on the Pitting Corrosion Resistance of Al Alloy

Materials Science Forum - Nanomaterials by Severe Plastic Deformation ◽

10.4028/0-87849-985-7.487 ◽

2006 ◽

pp. 487-492

Author(s):

In-Joon Son ◽

Hiroaki Nakano ◽

Satoshi Oue ◽

Shigeo Kobayashi ◽

Hisaaki Fukushima ◽

...

Keyword(s):

Corrosion Resistance ◽

Equal Channel Angular Pressing ◽

Pitting Corrosion ◽

Al Alloy ◽

Angular Pressing ◽

Pitting Corrosion Resistance

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High-formability Al alloy sheet produced by asymmetric rolling of strip-cast sheet

Materials Science and Engineering A ◽

10.1016/j.msea.2013.02.068 ◽

2013 ◽

Vol 574 ◽

pp. 31-36 ◽

Cited By ~ 16

Author(s):

Hong-Kyu Kim ◽

Hyung-Wook Kim ◽

Jae-Hyung Cho ◽

Jae-Chul Lee

Keyword(s):

Alloy Sheet ◽

Al Alloy ◽

Asymmetric Rolling ◽

Strip Cast

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Enhancement of strength and superplasticity in a 6061 Al alloy processed by equal-channel-angular-pressing

Metallurgical and Materials Transactions A ◽

10.1007/s11661-002-0301-4 ◽

2002 ◽

Vol 33 (10) ◽

pp. 3155-3164 ◽

Cited By ~ 145

Author(s):

W. J. Kim ◽

J. K. Kim ◽

T. Y. Park ◽

S. I. Hong ◽

D. I. Kim ◽

...

Keyword(s):

Equal Channel Angular Pressing ◽

Al Alloy ◽

Angular Pressing ◽

6061 Al Alloy

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Different Die Designs for Processing of Al Alloy Using Equal Channel Angular Pressing: A FEM Study

Proceedings of the Indian National Science Academy ◽

10.16943/ptinsa/2013/v79i4/48011 ◽

2013 ◽

Vol 79 (4) ◽

pp. 829 ◽

Cited By ~ 5

Author(s):

K. Hans Raj ◽

R. S. Sharma ◽

A. Sahai ◽

N. K. Gupta

Keyword(s):

Equal Channel Angular Pressing ◽

Al Alloy ◽

Angular Pressing

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Influence of stacking-fault energy on the accommodation of severe shear strain in Cu-Al alloys during equal-channel angular pressing

Journal of Materials Research ◽

10.1557/jmr.2009.0426 ◽

2009 ◽

Vol 24 (12) ◽

pp. 3636-3646 ◽

Cited By ~ 46

Author(s):

Xianghai An ◽

Qingyun Lin ◽

Shen Qu ◽

Gang Yang ◽

Shiding Wu ◽

...

Keyword(s):

Shear Strain ◽

Equal Channel Angular Pressing ◽

Shear Bands ◽

Al Alloys ◽

Stacking Fault ◽

Stacking Fault Energy ◽

Dislocation Slip ◽

Al Alloy ◽

Angular Pressing ◽

Inherent Deformation

X-ray diffraction (XRD) and transmission electron microscope (TEM) investigations have been carried out to decode the influence of stacking-fault energy (SFE) on the accommodation of large shear deformation in Cu-Al alloys subjected to one-pass equal-channel angular pressing. XRD results exhibit that the microstrain and density of dislocations initially increased with the reduction in the SFE, whereas they sharply decreased with a further decrease in SFE. By systematic TEM observations, we noticed that the accommodation mechanism of intense shear strain was gradually transformed from dislocation slip to deformation twin when SFE was lowered. Meanwhile, twin intersections and internal twins were also observed in the Cu-Al alloy with extremely low SFE. Due to the large external plastic deformation, microscale shear bands, as an inherent deformation mechanism, are increasingly significant to help carry the high local plasticity because low SFE facilitates the formation of shear bands.

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