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http://dx.doi.org/10.5139/JKSAS.2005.33.2.060

A Study on the Effect of Shot Peening on the Fatigue Life of Al 7075-T6 under Corrosion Environment  

Cheong, Seong-Kyun (서울산업대학교 기계공학과)
Nam, Ji-Hun (서울산업대학교 산업대학원)
Kou, Dae-Lim (산업자원부 산업표준품질과)
Ro, Seung-Nam (서울산업대학교 기계공학과)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.33, no.2, 2005 , pp. 60-66 More about this Journal
Abstract
Corrosion highly affects the lifetime and performance of machinery metallic components. The effects of shot peening on the fatigue life of Al 7075-T6 under corrosive environment are investigated in this paper. Experimental results show that the fatigue limit of shot peened specimen increases about 52%. That means the fatigue life of metallic components is highly extended by shot peening. The corrosion greatly reduces the fatigue strength depending on the corrosive condition from one week up to one year. In case of shot peened specimen, the corrosion does not reduce the fatigue strength and fatigue life up to six months. It means that the shot peening has superior effectiveness to reduce the influence of corrosion to the metallic materials.
Keywords
Shot Peening; Corrosion; Corrosion Fatigue; Fatigue Life; Arc Height;
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  • Reference
1 Murat Aydin, Temel Savaskan, 2004, 'Fatigue properties of zinc-aluminium alloys in 3.5% NaCl and and 1% HCl solutions', International Journal of Fatigue, Volume 26, Issue 1, pp. 103-110   DOI   ScienceOn
2 B. Huneau, J., Mendez, 2003, 'Fatigue behavior of a high strength steel in vacuum in air and in 3.5% NaCl solution under cathodic protection', Materials Science and Engineering A, Volume 345, Issues 1-2, pp. 14-22   DOI   ScienceOn
3 Lifka B, Sprowls D, 1970, 'Shot Peening - A Stress Corrosion Cracking Preventive for High Strength Aluminium Alloy', Proc. of the 26th annual Conference, NACE, U.5.A., pp. 4-6
4 Sprowls D and Brown R, 1962, 'What Every Engineer should Know about Stress Corrosion of Aluminium', Metal Progress, pp. 1-5
5 Muller, M. P., Verpoort, C. and Gessinger, G. H, 1981, 'The Influence of shot Peening on the Fatigue and Corrosion Fatigue Behavior of an Austentic-Ferritic Stainless Steel', Proc. of the 1st International Conference on Shot Peening, Vol. 1, pp. 479-484
6 D. Y. Lee, 1988, 'Fracture and Fatigue under Corrosion Environmental', Transactions of the KSME, Vol. 28, No. 4, pp. 313-321
7 S. K. Cheong, T. H. Kim, 2003, 'A Study on the Optimum Shot Peening Condition for AI7075-T6', Transactions of the KSAS, Vol. 31, No. 7, pp. 63-68
8 Kirt, D. and Jarrett, M, 1984, 'Influence of Shot Peening on Fatigue and Corrosion -Fatigue Behavior of Structural Steel', Proc. of the 2nd International Conference on Shot Peening, Vol. 1, pp. 133-142
9 Sharma, M. C., 1996, 'Assesment of Over Peening by time on Fatigue behavior of Spring Steel', Proc. of 6th International Fatigue Congress, pp. 1397-1402
10 Denny A. Jones, 1996, 'Principles and Prevention of Corrosion', Prentice Hall, Inc
11 Y. G. Kwon, 1989, 'Corrosion Fatigue', Transactions of the KSME, Vol. 29, No. 2, pp. 138-143
12 W. Koehler, Dr.-Ing, 1984, 'Influence of Shot Peening with Different Peening Materials on the Stress Corrosion and Corrosion Fatigue Behavior of a Welded AIZnMg Alloy', Proc. of the 2nd International Conference on Shot Peening, Vol. 1, pp. 126-132
13 M. O. Speidel, 1981, 'Effect of Shot Peening on Stress Corrosion Cracking and Corrosion Fatigue', Proc. of the 1st International Conference on Shot Peening, Vol. 1, pp. 625-635