Mechanical Properties of MaterialsNo Access

FATIGUE PROPERTIES OF ALUMINUM ALLOY (A6061-T6) WITH ULTRASONIC NANO-CRYSTAL SURFACE MODIFICATION

CHAN JOO LEE

Department of Mechanical Engineering, The University of Tokushima, 2-1 Minami-josanjima-cho, Tokushima 770-8506, Japan

Corresponding author.

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RI-ICHI MURAKAMI

Department of Mechanical Engineering, The University of Tokushima, 2-1 Minami-josanjima-cho, Tokushima 770-8506, Japan

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, and

CHANG MIN SUH

School of Mechanical Engineering, Kyungpook National University 1370 Sankyuk-dong, Buk-gu, Daegu 702-701, Korea

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https://doi.org/10.1142/S0217979210065180Cited by:14 (Source: Crossref)

Abstract

The corrosion resistance of aluminum can be improved by adding alloy elements or using a surface heat treatment process. The machine quality can be confirmed by analyzing the surface roughness, the surface hardness and the residual stress. In this paper, the fatigue characteristics of A6061-T6 aluminum specimens were obtained and compared with those of the treated specimens with the UNSM (Ultrasonic Nano-Crystal Surface Modification) technology and the untreated ones by using a multi-spindle rotating bending fatigue testing machine.

The fatigue crack initiation and fatigue lives of the treated specimens with the UNSM technology was delayed and extended by the UNSM effects that are the increase of surface hardness, and the reduction of the surface roughness.

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References

T. Sakaiet al., Proc. 7th Int. Fatigue Cong.; FA-TIGUE '99 pp. 573–578. Google Scholar
N. Oguma and T. Sakai, J. Soc. Mater. Sci., Jpn. 50, 516 (2001). Web of Science, Google Scholar
A. Otsuka, K. Tohgo and H. Matsutama, Journal of the Society of Materials Science, Japan 36(405), 38 (1987). Google Scholar
Y. Pyounet al., Development of D2 Tool Steel Trimming Knives with Nano scale Microstructure, AISTech 2005 Proceedings2 (2005) pp. 465–473. Google Scholar
c. Suhet al., I. J. of Modem Physics B 2(27), 4541 (2006). Google Scholar
c. Suh, G. Song and Y. Pyoun, 1. Mat. Sci. Eng. A 443, 101 (2007), DOI: 10.1016/j.msea.2006.08.066. Web of Science, Google Scholar
Y. Watanabe, N. Hasegawa and 1. M. Duchazeaubeneix, Effect of Ultrasonic Shot Peening on Fatigue Strength of High Strength Steel, Proc. 8th Int. Conf. on Shot Peening (Wiley-VCH, Germany, 2003) pp. 306–310. Google Scholar
Waterhouse, (1981). Fretting fatigue. Applied Science . Google Scholar
H. J. Rack, Dispersion Strengthened Aluminum Alloys, eds. Y. W. Kim and W. M. Griffith (TMS, 1988) p. 64~l. Google Scholar
S. R. Nut and R. W. Carpenter, Mater. Sci. Eng. 75, 169 (1985). Web of Science, Google Scholar