Paper Titles

Influence of Coarsening Treatment on Fatigue Strength and Fracture Toughness of Al-Si-Mg Alloy Casting
p.1263

Roller Working Effect on Fatigue Strength of Ti-6Al-4V Alloy
p.1269

On Characteristics of Weibull Distribution Parameters of Fatigue Crack Growth Lives
p.1275

Probabilistic Estimation of the Fatigue Life of an Electric Car Bogie Frame
p.1281

Super-Long Life Fatigue Behavior of Structural Aluminum Alloys
p.1287

Fatigue Design of Leaf Spring Based on Proving Ground
p.1295

Fatigue Studies of FRP Composite Decks at Extreme Environmental Conditions
p.1301

Development of Flaw Evaluation System for Creep-Fatigue Crack Propagation of High-Temperature
p.1307

Development of Fatigue Detecting Sensor
p.1313

HomeKey Engineering MaterialsKey Engineering Materials Vols. 261-263Super-Long Life Fatigue Behavior of Structural...

Super-Long Life Fatigue Behavior of Structural Aluminum Alloys

Article Preview

Abstract:

The objective of this study is to determine very long life fatigue and near threshold fatigue crack growth behaviors of 7075/T6 and 6061/T6 Al-alloys using piezoelectric accelerated fatigue at 19.5KHz. The experimental results show the fatigue failure can occur beyond 107, even 109 cycles, and endurance limits could not be obtained in the Al-alloys until 109 cycles. Fatigue voids are noticed on fatigue fracture in both alloys. By using scanning electron microscopy (SEM), the crack initiation and propagation behaviors have been examined. Fatigue crack growth rates of small cracks in the Al-alloys are found to be greater than those of large cracks at the same stress intensity factor range.

You might also be interested in these eBooks

Advances in Fracture and Failure Prevention

Info:

Periodical:

Key Engineering Materials (Volumes 261-263)

Pages:

1287-1294

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.261-263.1287

Citation:

Cite this paper

Online since:

April 2004

Authors:

Qing Yuan Wang, Norio Kawagoishi, Nu Yan, Q. Chen

Keywords:

Crack Initiation, Fatigue Voids, Near Threshold Crack Growth, Structural Aluminum Alloys, Super-Long Life Fatigue

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

© 2004 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

[1] P. Heuler and O. Birk: Fatigue Fract. Engng. Mater. Struct. Vol. 25 (2002), p.1135.

[2] Q.Y. Wang, J.Y. Berard, A. Dubarre, S. Rathery and C. Bathias: Fatigue Fract. Engng. Mater. Struct. Vol. 22 (1999), p.667.

DOI: 10.1046/j.1460-2695.1999.00185.x

[3] Q.Y. Wang, J.Y. Berard, S. Rathery and C. Bathias: Fatigue Fract. Engng. Mater. Struct. Vol. 22 (1999), p.673.

[4] Q.Y. Wang, C. Bathias, N. Kawagoishi and Q. Chen: Int. J. of Fatigue Vol. 24 (2002), p.1269.

[5] N. Yan, N. Kawagoishi, Q. Chen and Q.Y. Wang: Key Engng. Mater. Vol. 243-244 (2003), p.321.

[6] K. Shiozawa and L. Lu: Fatigue Fract. Engng. Mater. Struct. Vol. 25 (2002), p.813.

[7] Y. Murakami, M. Takada and T. Toriyama: Int. J. of Fatigue Vol. 20 (1998), p.661.

[8] C. Bathias: Fatigue Fract. Engng. Mater. Struct. Vol. 22 (1999), p.559.

[9] H. Mayer: Int. Mater. Reviews Vol. 44 (1999), p.1.

[10] T. Pardoen and J.W. Hutchinson: Acta Mater. Vol. 51 (2003), p.133.

[11] H. Agarwal, A. M. Gokhale, S. Graham and M.F. Horatemeter: Mater. Sci. Engng. Vol. A341 (2003), p.35.

[12] V. Tvergaard and J.W. Hutchinson: Int. J. Solids Struct. Vol. 39 (2002), p.3581.

[13] J.P. Bandstra and D.A. Koss: Mater. Sci. Engng. Vol. A319-321 (2001), p.490.

[14] R. Sunder, W.J. Porter and N.E. Ashbaugh: Fatigue Fract. Engng. Mater. Struct. Vol. 25 (2002), p.1015.

[15] Q.Y. Wang, R.M. Pidaparti and M.J. Palakal: AIAA J. Vol. 39 (2001), p.325.

[16] S.A. Barter, P.K. Sharp, G. Holden and G. Clark: Fatigue Fract. Engng. Mater. Struct. Vol. 25 (2002), p.111.

[17] Q.Y. Wang: Ph. D Thesis, Ecole Centrale Paris, France (1998).