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Advanced rolling technologies for producing ultra-finegrain/nanostructured alloys

Journal Article


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Abstract


  • Ultrafine-grained materials show high strength at ambient temperature, high-speed superplastic deformation at elevated temperatures, and high corrosion resistance. Such materials have attracted increasing attention in the past twenty years. A number of severe plastic deformation techniques, such as equal-channel angular press, high pressure torsion, groove pressing, twist extrusion, asymmetric rolling, and accumulative roll bonding have been used to develop ultrafine-grained bulk materials. The equal-channel angular press, high pressure torsion, twist extrusion and groove pressing techniques suffer from some drawbacks: firstly, forming machines with large load capacities and expensive dies are indispensable for these processes; secondly, the productivity is relatively very limited; thirdly, the techniques are only suitable for small samples. Compared with equal-channel angular press, high pressure torsion, twist extrusion and groove pressing, the accumulative roll bonding and asymmetric rolling techniques can be used to produce continuous ultrafine-grained sheets in large quantities. In this paper, a survey of relatively recent rolling technologies is presented. The merits and drawbacks of each technique are examined. These techniques are: (1) Asymmetric cryorolling, which has potential for large-scale industrial production of nanostructured materials; (2) Four-layer accumulative roll bonding, which has potential to produce nanostructured materials at room temperature with high bonding quality, used for fabrication of ultrafine material sheets; (3) Asymmetric Rolling of accumulative roll bonding-processed sheets, which has potential for large-scale industrial production of nanocomposite foils.

Publication Date


  • 2014

Citation


  • Yu, H., Tieu, K. & Lu, C. (2014). Advanced rolling technologies for producing ultra-finegrain/nanostructured alloys. Procedia Engineering, 81 (C), 96-101.

Scopus Eid


  • 2-s2.0-84949121497

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=4648&context=eispapers

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/3629

Has Global Citation Frequency


Number Of Pages


  • 5

Start Page


  • 96

End Page


  • 101

Volume


  • 81

Issue


  • C

Place Of Publication


  • Netherlands

Abstract


  • Ultrafine-grained materials show high strength at ambient temperature, high-speed superplastic deformation at elevated temperatures, and high corrosion resistance. Such materials have attracted increasing attention in the past twenty years. A number of severe plastic deformation techniques, such as equal-channel angular press, high pressure torsion, groove pressing, twist extrusion, asymmetric rolling, and accumulative roll bonding have been used to develop ultrafine-grained bulk materials. The equal-channel angular press, high pressure torsion, twist extrusion and groove pressing techniques suffer from some drawbacks: firstly, forming machines with large load capacities and expensive dies are indispensable for these processes; secondly, the productivity is relatively very limited; thirdly, the techniques are only suitable for small samples. Compared with equal-channel angular press, high pressure torsion, twist extrusion and groove pressing, the accumulative roll bonding and asymmetric rolling techniques can be used to produce continuous ultrafine-grained sheets in large quantities. In this paper, a survey of relatively recent rolling technologies is presented. The merits and drawbacks of each technique are examined. These techniques are: (1) Asymmetric cryorolling, which has potential for large-scale industrial production of nanostructured materials; (2) Four-layer accumulative roll bonding, which has potential to produce nanostructured materials at room temperature with high bonding quality, used for fabrication of ultrafine material sheets; (3) Asymmetric Rolling of accumulative roll bonding-processed sheets, which has potential for large-scale industrial production of nanocomposite foils.

Publication Date


  • 2014

Citation


  • Yu, H., Tieu, K. & Lu, C. (2014). Advanced rolling technologies for producing ultra-finegrain/nanostructured alloys. Procedia Engineering, 81 (C), 96-101.

Scopus Eid


  • 2-s2.0-84949121497

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=4648&context=eispapers

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/3629

Has Global Citation Frequency


Number Of Pages


  • 5

Start Page


  • 96

End Page


  • 101

Volume


  • 81

Issue


  • C

Place Of Publication


  • Netherlands