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http://dx.doi.org/10.5228/KSPP.2002.11.3.255

Superplastic Deformation Behavior of ECA dressed 7010 Al Alloy  

김지식 (상주대학교 신소재공학과)
Publication Information
Transactions of Materials Processing / v.11, no.3, 2002 , pp. 255-261 More about this Journal
Abstract
The grain size of 7010 Al alloy was refined to submicrometer level by using equal channel angular pressing (ECAP) and additional warm rolling. The mechanisms of grain refinement in ECAP process were fragmentation of coarse grain to ultra fine subgrains after a few passes and continuous recrystallization of the subgrains with the increase o( passes. Because of ultrafine grain size, essentially low temperature and high strain rate superplasticity was observed after ECAP process and warm rolling to form a sheet metal. The maximum elongation of 700% was obtained for an ECA pressed specimen after IS passes without warm rolling at $450^{\circ}C$ with strain rate of 5x$10^{-3}$/sec.
Keywords
Equal Channel Angular Pressing (ECAP); Ultra Fine Grain; Low Temperature And High Strain Rate Superplasticity; Electron Back Scattered Diffraction (EBSD); Warm Rolling;
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  • Reference
1 Origin of cube texture during hot rolling of commercial Al-Mn-Mg alloys /
[ O. Daaland;E. Nes ] / Acta Materialia   DOI   ScienceOn
2 Influence of magnesium on grain refinement and ductility in a dilute Al-Sc alloy /
[ M.Furukawa;A.Utsunomiya;K.Matsubara;Z.Horita;T.G.Langdon ] / Acta Materialia   DOI   ScienceOn
3 Overview of fatigue properties of fine grain 5056 Al-Mg alloy processed by equal-channel angular pressing /
[ V. Patlan;A. Vinogradov;K. Higashi;K. Kitagawa ] / Materials Science and Engineering A
4 Improving the mechanical properties of magnesium and a magnesium alloy through severe plastic deformation /
[ A. Yamashita;Z. Horita;T. G. Langdon ] / Materials Science and Engineering
5 Effect of grain boundary characters on grain boundary sliding during superplastic deformation /
[ T. Haruna;T. Shibayanagi;S. Hori;N. Furushiro ] / Mater.Trans. JIM   DOI
6 Structural evolution of a etrip-cast Al alloy sheet processed by continuous equal-channel angular pressing /
[ J. C. Lee;H. K. Seok;J. Y. Suh;J. H. Han;Y. H. Chung ] / Metallurgical and Materials Transactions A   DOI   ScienceOn
7 Improvement of mechanical properties for Al alloys using equal-channel angular pressing /
[ Z. Horita;T. Fujinami;M. Nemoto;T. G. Langdon ] / Journal of Materials Processing Technology   DOI   ScienceOn
8 Fatigue properties of 5056 Al-Mg alloy produced by equal-channel angular pressing /
[ A. Vinogradovl;S. Nagasaki;V. Patlan;K. Kitagawa;M. Kawazoe ] / Nanostructured Materials   DOI   ScienceOn
9 An investigation of microstructural evolution during equal channel angular pressing /
[ Y. Iwahashi;Z. Horita;M. Nemoto;T. G. Langdon ] / Acta Materialia   DOI   ScienceOn
10 Cyclic response of fine grain 5056 Al-Mg alloy processed by equal-channel angular pressing /
[ V. Patlan;K. Higashi;K. Kitagawa;A.Vinogradov;M. Kawazoe ] / Materials Science and Engineering
11 Recrystallization texture development in commercial Al-Mn-Mg alloys /
[ O. Daaland;E. Nes ] / Acta Materialia   DOI   ScienceOn
12 Effect of superplastic deformation on the grain size and tensile properties of 7010 alloy sheet /
[ A. J. Shakesheff;P. G. Partridge ] / J. of Mat. Sci.   DOI   ScienceOn
13 Influence of rolling on the superplastic behavior of an Al-Mg-Sc alloy after ECAP /
[ H. Akamatsu;T. Fujinami;Z. Horita;T. G. Langdon ] / Scripta Materialia   DOI   ScienceOn
14 Microstructure of two-phase Al-1.7Cu alloy deformed by equal-channel angular pressing /
[ M. Murayama;Z. Horita;K. Hono ] / Acta Materialia   DOI   ScienceOn
15 Effect of aging treatment on heavily deformed microstructure of a 6061 aluminum alloy after equal channel angular pressing /
[ J. K. Kim;H. G. Jeong;S. I. Hong;Y. S. Kim;W. J. Kim ] / Scripta Materialia   DOI   ScienceOn
16 Developing SPD methods for processing bulk nanostructured materials with enhanced properties /
[ R. Z. Valiev ] / Metals and Materials International   과학기술학회마을   DOI
17 ECAP 강가공에 의한 5083 Al 합금의 결정립 미세화 /
[ 이정국;신동혁(외) ] / 대한금속재료학회지   과학기술학회마을
18 Optimizing the procedure of equal-channel angular pressing for maximum superplasticity /
[ S. Komura;M. Furukawa;Z. Horita;M. Nemoto;T. G. Langdon ] / Materials Science and Engineering A
19 Influence of scandium and zirconium on grain stability and superplastic ductilities in ultrafine-grained Al-Mg alloys /
[ S. Lee;A. Utsunomiya;H. Akamatsu;K. Neishi;M. Furukawa;Z. Horita;T. G. Langdon ] / Acta Materialia   DOI   ScienceOn