Fatigue Behavior and Damage Mechanism of a Cast Aluminum Alloy in Very High Cycle Regime

Hong Qian Xue; E. Bayraktar; Claude Bathias

doi:10.4028/www.scientific.net/AMR.264-265.706

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 264-265Fatigue Behavior and Damage Mechanism of a Cast...

Fatigue Behavior and Damage Mechanism of a Cast Aluminum Alloy in Very High Cycle Regime

Abstract:

An improved understanding of fatigue behavior of a cast aluminum alloy (2-AS5U3G-Y35) in very high cycle regime was developed through ultrasonic fatigue test in axial and torsion loading, cyclic loading in axial and torsion at 35 Hz and 20kHz with R=-1 was used respectively to demonstrate the effect of loading condition. S-N curves obtained show that fatigue failure occurred in range of 105 -1010 cycles in axial or torsion loading, the asymptote of S-N curve is inclined gently, but no fatigue limit under torsion and axial loading condition. Fatigue fracture surface shows fatigue crack essentially initiated from the surface of the specimens subjected to cyclic torsion load, it is different from the fatigue fracture characteristic in axial loading which fatigue crack initiate from subsurface defect in very high cycle regime. Fatigue initiation is on the maximum shear plane, the overall crack orientation is observed on a typical spiral 45° to the fracture plane, which is the maximum principle stress plane, however, shear strip are very clear in the torsion fatigue fracture surface, the torsion fracture is actually in shear fracture.

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Periodical:

Advanced Materials Research (Volumes 264-265)

Pages:

706-711

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.264-265.706

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Online since:

June 2011

Authors:

Hong Qian Xue, E. Bayraktar, Claude Bathias

Keywords:

20kHz, Cast Aluminum, Torsion Fatigue, VHCF

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References

[1] Wang Q.Y., Berand J.Y., Bathias C., Gigacycle fatigue of ferrous alloys. Fatigue Fract Engng Master Struct, 1999, 22(8): 667～672.

DOI: 10.1046/j.1460-2695.1999.00185.x

Google Scholar

[2] Mayer H., Papakyriacou M., Zettl B., Stanzl-Tschegg S.E., Influence of porosity on the fatigue limit of die cast magnesium and aluminium alloys. International journal of fatigue, 2003(25): 245-256.

DOI: 10.1016/s0142-1123(02)00054-3

Google Scholar

[3] Sun Z.D., Bathias C., Baudry G., Fretting fatigue of 42CrMo4 steel at ultrasonic frequency. International Journal of Fatigue, 2001, 23: 449-453.

DOI: 10.1016/s0142-1123(00)00097-9

Google Scholar

[4] Murakami Y, Nomoto T and ueda T, Factors influencing the mechanism of superlong fatigue failure in steels. Fat. Fract. Engng Mat. Struct. 1999(22): 581-590.

DOI: 10.1046/j.1460-2695.1999.00187.x

Google Scholar

[5] Emin Bayraktar, Claude Bathias, Xue Hongqian and Tao Hua. On the giga cycle fatigue behaviour of two-phase (2+) TiAl alloy. International Journal of Fatigue, No. 12, (2005).

DOI: 10.1016/j.ijfatigue.2004.05.002

Google Scholar

[6] H.Q. Xue, H. Tao, C. Bathias The Analysis of Specimen Design for Fatigue Test at Ultrasonic Frequency. The 3rd International Conference on Very High Cycle Fatigue, Tokyo, Japan, Sept. (2004).

Google Scholar

[7] P. Davoli, A. Bernasconi, M. Filippini and et al. Independence of the torsional fatigue limit upon a mean shear stress. International Journal of Fatigue, 2003. 6: 471-480.

DOI: 10.1016/s0142-1123(02)00174-3

Google Scholar

[8] Murakami Y.; Takahashi K. Torsional fatigue of a medium carbon steel containing an initial small surface crack introduced by tension-compression fatigue: Crack branching, non-propagation andfatigue limit: Fatigue & Fracture of Engineering Materials & Structures, 1998. 21: 1473-1484.

DOI: 10.1046/j.1460-2695.1998.00128.x

Google Scholar

[9] Standard Practice for Conducting Constant Amplitude Axial Fatigue Tests of Metallic Materials. ASTM 1995, (E466).

Google Scholar

[10] D. McClaflin, A. Fatemi. Torsional deformation and fatigue of hardened steel including mean stress and stress gradient effects. International Journal of Fatigue, 2004. 2: 773-784.

DOI: 10.1016/j.ijfatigue.2003.10.019

Google Scholar