Ductile fracture behavior of 5052 aluminum alloy sheet under cyclic plastic deformation at room temperature

Yagami, T.; Manabe, Katsushi; Miyamoto, Tomoki

doi:10.1016/j.jmatprotec.2008.03.045

Cited by 11 publications

(2 citation statements)

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“…Allwood and Shouler (2009) have done similar work and included thickness stress as well, and observed that thickness stress can also raise the formability. Yagami et al (2009) have carried out tests on cyclic straining, albeit with some bending, and also concluded that this can raise the formability. That bending can raise the formability has been known for quite some time, but it has gained recent renewed interest by observations that formability in material tests is affected by the tool radius.…”

Section: Introductionmentioning

confidence: 99%

Cyclic stretch-bending: Mechanics, stability and formability

Emmens

Boogaard

2011

Journal of Materials Processing Technology

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Section: Introductionmentioning

confidence: 99%

Cyclic stretch-bending: Mechanics, stability and formability

Emmens

Boogaard

2011

Journal of Materials Processing Technology

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“…In addition, an analytical model was proposed based on the fully plastic contact theory to anticipate the corresponding surface roughness and finally provide the essential knowledge for optimization of the process to minimize the surface roughness [37]. The ductile fracture behavior of the Al5052 sheet after cyclic plastic deformation is studied by Yagami et al to determine the deformation consequence on formability enhancement in incremental stretch sheet forming at room temperature [38]. The results indicated that the deformability increases due to the cyclic bending-unbending deformation because of strain distribution and accumulation effects.…”

Section: Introductionmentioning

confidence: 99%

Improving Mechanical and Corrosion Behavior of 5052 Aluminum Alloy Processed by Cyclic Extrusion Compression

Djavanroodi

Shamsborhan

et al. 2022

Metals

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Background The severe plastic deformation approach and its well-known cyclic extrusion compression (CEC) method have been established as a powerful tool for fabricating bulk ultrafine-grained metals and alloys with improved properties. Objective This study focused on the microstructure evolution, hardness behavior, and corrosion properties of the CEC-processed Al5052 up to four passes compared to the initial annealed state. Methods The initial and CEC-processed Al5052 samples at different pass numbers were examined experimentally by EBSD analyses, hardness measurements, and corrosion resistance. Results Substantial grain refinement was attained from 23 µm for the annealed sample to 0.8 µm in the four passes sample. In addition, the hardness values considerably increased up to 75.7% after four passes from the initial value of 80 HV. In addition, the increment of pass numbers led to a more uniform dispersion of hardness values. Furthermore, the production of more stable protective oxide layers on the UFG structure of the CEC-processed sample led to the improvement in electrochemical response with a corrosion rate reduction from 1.49 to 1.02 mpy, respectively, in the annealed and final pass CEC-processed samples. In fact, the annealed sample manifested more large-sized and deeper pits than the CECed samples due to the increment of potential values and electrochemical attack of chlorine ions that finally deteriorates the corrosion performance. Conclusions CEC is an efficient method to improve the mechanical properties of materials due to substantial microstructural changes along with enhancement of electrochemical behavior because of the presence of small-sized and shallow pits.

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Non-Straight Strain Path

Emmens

2011

Formability

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Ductile fracture behavior of 5052 aluminum alloy sheet under cyclic plastic deformation at room temperature

Cited by 11 publications

References 6 publications

Cyclic stretch-bending: Mechanics, stability and formability

Cyclic stretch-bending: Mechanics, stability and formability

Improving Mechanical and Corrosion Behavior of 5052 Aluminum Alloy Processed by Cyclic Extrusion Compression

Non-Straight Strain Path

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