Browse > Article

Fatigue Properties of Fine Grained Magnesium Alloys after Severe Plastic Deformation  

Chung Chin-Sung (Bowon Light Metal Co.)
Chun Duk-Kyu (Department of Automotive Engineering, Seoul National University of Technology)
Kim Ho-Kyung (Department of Automotive Engineering, Seoul National University of Technology)
Publication Information
Journal of Mechanical Science and Technology / v.19, no.7, 2005 , pp. 1441-1448 More about this Journal
Abstract
Fine grained AZ31 and AZ61 magnesium alloys produced by equal channel angular pressing (ECAP) were tested for investigating tensile and fatigue properties, including microstructure, monotonic tensile flow, fatigue life and crack growth rate. For the two alloys, the yield stress of the ECAPed sample was lower than that of the unECAPed (=as received) sample, because of the fact that the softening effect due to texture anisotropy overwhelmed the strengthening effect due to grain refinement. Grain refinement of the AZ31 and AZ61 alloys through ECAP was found not to be significantly effective in increasing fatigue strength.
Keywords
Magnesium Alloys; Equal Channel Angular Pressing (ECAP); Fine Grained Microstructures; Fatigue Crack Growth Rate; Fatigue Strength;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
Times Cited By Web Of Science : 2  (Related Records In Web of Science)
Times Cited By SCOPUS : 4
연도 인용수 순위
1 Vinogradov, A., Nagasaki, S., Parian, V., Kitagawa, K. and Kawazoe, N., 1999, 'Fatigue Properties of Fine Grain 5056 Al-Mg Alloy Processed by Equal-Channel Angular Pressing,' NanoStructured Mater., Vol. 11, pp. 925-934   DOI   ScienceOn
2 Iwahashi, Y., Furukawa, M., Horita, Z., Nemoto, M. and Langdon, T. G., 1998, 'Microstructural Characteristics of Ultrafine-Grained Aluminum Processed Using Equal-Channel Angular Pressing,' Metal Mat. Trans., Vol. 29A, pp. 2245-2252   DOI
3 Rabinovich, M. K. H. and Markushev M. V., 1995, 'Influence of Fine Grained Structure and Superplastic Deformation on the Strength of Aluminum Alloys,' J. Mater. Sci., Vol. 30, pp. 4692-4702   DOI
4 Suresh, S. and Ritchie, R. O., 1984, 'Propagation of Short Fatigue Cracks,' Int. Metal Rev., Vol. 29, pp. 445-476
5 Agnew, S. R., Vinogradov, A. Y., Hashimoto, S. and Weertman, J. R., 1999, 'Overview of Fatigue Performance of Cu Processed by Severe Plastic Deformation,' J. Electronic Mater., Vol. 28, No. 9, pp. 1038-1044   DOI
6 Kim, H. K., Choi, M. I., Chung, C. S. and Shin, D. H., 2002, 'Fatigue Crack Growth Behavior in Ultrafine Grained Low Carbon Steel,' KSME Int. J., Vol. 16, No. 10, pp. 1246-1252   과학기술학회마을
7 Kim, W. J., An, C. W., Kim, Y. S. and Hong, S. I., 2002, 'Mechanical Properties and Microstructures of an AZ61 Mg Alloy Produced by Equal Channel Angular Pressing,' Scripta Mater., Vol. 47, pp. 39-44   DOI   ScienceOn
8 Patlan, V., Vinogradov, A., Higashi, K. and Kitagawa, K., 2001, 'Overview of Fatigue Properties of Fine Grain 5056 Al-Mg Alloy Processed by Equal-Channel Angular Pressing,' Mater. Sci. & Eng., Vol. A300, pp.171-182   DOI   ScienceOn
9 Friedrich, H. and Schumann, S., 2001, 'Research for a New Age of Magnesium in the Automotive Industry,' J. Mat. Processing Tech., Vol. 117, pp. 276-281   DOI   ScienceOn
10 Iwahashi, Y., Horita, Z., Nemoto, M. and Langdon, T.G, 1998, 'The Process of Grain Refinement in Equal-Channel Angular Pressing,' Acta Mater., Vol. 46, pp. 3317-3331   DOI   ScienceOn
11 Berbon P. B., Nikolai, K. T., Valiev, R. Z., Furukawa, M., Horita, Z., Nemoto, M. and Langdon, T. G., 1998, 'Fabrication of Bulk Ultrafine-Grained Materials Through Intense Plastic Straining,' Metal Mat. Trans., Vol. 30A, pp. 1998-2237
12 Dugdale, D. S., 1960, 'Yielding of Steel Sheets Containing Slits,' J. Mechanics and Physics of Solid, Vol. 8, pp. 100-104   DOI   ScienceOn