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http://dx.doi.org/10.5228/KSPP.2008.17.2.102

Enhancement of Mechanical Properties of 5052 Al Alloy by Cryogenic and Warm rolling  

Gang, U.G. (국민대학교 신소재공학과)
Lee, S.H. (국민대학교 신소재공학과)
Lee, J.C. (국민대학교 신소재공학과)
Nam, W.J. (국민대학교 신소재공학과)
Publication Information
Transactions of Materials Processing / v.17, no.2, 2008 , pp. 102-106 More about this Journal
Abstract
Cryogenic rolling combined with warm rolling has been found more effective than a single cryogenic rolling process in improving the strength of a 5052 Al alloy. In this study, cryo-rolled 5052 Al alloys were warm-rolled at $175^{\circ}C$. A notable increase of tensile strength was achieved by the precipitation during warm rolling process. Mechanical behavior of this alloy was investigated using hardness and tensile tests. It was found that the cryogenic rolling process combined with warm rolling process was very effective in improving tensile strength.
Keywords
Cryogenic Rolling; Warm Rolling; Aging; Precipitation; Recovery;
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1 W. J. Nam, 2004, Effect of annealing temperature on microstructures and mechanical properties of a 5083 Al alloy deformed at cryogenic temperature, Scripta Mater., Vol. 51, pp. 355-359   DOI   ScienceOn
2 T. G. Langdon, 2001, Deformation heating and its effect on grain size evolution during Equal Channel Angular Extrusion, Scripta Mater., Vol. 44, pp. 135-140   DOI   ScienceOn
3 E. Ma, 2003, Instabilities and ductility of nanocrystalline and ultrafine-grained metals, Scripta Mater., Vol. 49, pp. 663-668   DOI   ScienceOn
4 M. H. Lee, H. Y. Kim, H. J. Kim, H. K Kim, S. I Oh, 2007, Forming Analysis for Warm Deep Drawing Process of Magnesium Alloy Sheet, Trans. Mater. Proc., Vol. 16, pp. 401-405
5 M. W. Chen, 2002 Enhanced tensile ductility in nanostructured Cu, Appl. Phys. Lett., Vol. 80, pp. 2395-2397   DOI   ScienceOn
6 E. Ma, 2002, High tensile ductility in a nanostuctured metal, Nature, Vol. 419, pp. 912-915   DOI   ScienceOn
7 D. J. Yoon, E. Z. Kim, Y. S. Lee, 2007, Finite Element Study on Deformation Characteristics and Damage Evolution in Warm Backward Extrusion of AZ31 Mg Alloys, Trans. Mater. Proc., Vol. 16, pp. 614-620
8 H. K. Yi, Y. H. Moon, J. H. Lee, Y. S. Lee, 2007, Prediction for Forming Limit of Tube Warm Hydroforming Based on the Ductile Fracture Criteria, Trans. Mater. Proc., Vol. 16, pp. 426-431
9 S. D. Kim, Y. N, Kwon, J. H Lee, S. H Kang, 2007, A Study on Warm Forging of Magnesium Alloy Impeller, Trans. Mater. Proc., Vol. 16, pp. 288-292
10 G. D. Kim, H. K. Kim, 2007, Evaluation of Formability Sensitivity to Die Design in Warm Square Cup Deep Drawing of AZ31 Sheet, Trans. Mater. Proc., Vol. 16, pp. 120-125
11 H. K. Kim, W. R. Lee, S. K. Hong, J. D. Kim, B. K. Han, 2006, Finite-Element Analysis of Warm Square Cup Deep Drawing Process of Magnesium Alloy AZ31 Sheet, Trans. Mater. Proc., Vol. 15, pp. 232-240
12 M-S. Rhee, D-M. Kang, 2006, Improvement of Formability of AZ31 Magnesium Alloy Sheet during Warm Deep Drawing, Trans. Mater. Proc., Vol. 15, pp. 148-152
13 D. J. Yoon, S. J. Lim, E. J. Kim, C. Cho, 2006, Plastic Forming Characteristics of AZ3l Mg Alloy in Warm Backward Extrusion, Trans. Mater. Proc., Vol. 15, pp. 597-602
14 H. G. Kim, J. W Bae, D. K. Choo, C. G. Kang, 2006, A Study on the Deep Drawing of AZ31B Magnesium Sheet at Warm and Hot Temperature, Trans. Mater. Proc., Vol. 15, pp. 504-511
15 E. J. Lavernia, 2002, Grain growth behavior of cryomilled INCONEL 625 powder during isothermal heat treatment, Metall. Mater. Trans., Vol. 33A, pp. 125-134
16 H. K. Kim, J. D Kim, 2006, Evaluation of Warm Deep Drawability of Magnesium Alloy AZ31 Sheet Using Solid-Type Lubricants, Trans. Mater. Proc., Vol. 15, pp. 453-458
17 E. J. Lavernia, 2001, Grain growth of nanocrystalline Ni powders prepared by cryomilling, Int. Metall. Mater. Trans., Vol. 32A, pp. 3109-3115