Fatigue Strength and Fracture Mechanisms of IF28 Steels

Article Preview

Abstract:

Interstitial free (IF) steels are widely used as thin sheet in the automobile industries because of their many favorable properties. Although, fatigue properties of IF steels do not have significant importance to auto body makers, however, they are very concerned about the tensile and fatigue strength of the steels used for structural purposes to ensure safety of passengers. So, fatigue results of this steel might help researchers to understand the behaviors of high strength steels. In this study cyclic and static properties have been studied at room temperature in the air. Initiative has also been taken to observe the fatigue fracture morphology of this steel. Experimental results show that the fatigue limit is corresponding to about 40% of tensile strength and 80% of the yield strength of this steel. Fractographic observations reveal a mixed type of fracture mode (intergranular and transgranular cracking) fractures.

You might also be interested in these eBooks

Info:

Periodical:

Advanced Materials Research (Volumes 15-17)

Pages:

804-809

Citation:

Online since:

February 2006

Authors:

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2007 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

[1] M.T. Milan, D. Spinelli and W.W.B. Filho: Inter. J. Fat., Vol. 23 (2001), p.129.

Google Scholar

[2] M.P. Renavikar: Ph.D. Thesis, University of Pittsburgh, Canada (2003).

Google Scholar

[3] J.K. Fekete, D.C. Strugala and Z. Yao: J. Metals, Vol. 44, (1992) p.17.

Google Scholar

[4] P. Stiaszny, A. Pichler, W. Bleck, G. Hessling, A. Spalek, E. Werner and K. Spiradek-Hahn: Proc. of International Forum for the properties and application of IF steels, edited by H. Takechi (2003) p.178.

Google Scholar

[5] B. Engl, C. Reip, T. Gerber, G. Steinbeck and P. Stiaszny: Proc. of International Forum for the properties and application of IF steels, edited by H. Takechi (2003) p.192.

Google Scholar

[6] J.H. Park and Y. Tomota,: Inter. J. of Mat. Res. and Adv. Tech., Vol. 94 (2003) p.53.

Google Scholar

[7] Y. Tomota, N. Tsuchida and J.H. Park: Proc. of International Forum for the properties and application of IF steels, edited by H. Takechi (2003) p.148.

Google Scholar

[8] P. White, L. Molent and S. Barter: Inter. J. Fatigue, Vol. 27 (2005) p.752.

Google Scholar

[9] W. Bleck and P. Larour: Proc. of International Forum for the properties and application of IF steels, edited by H. Takechi (2003) p.138.

Google Scholar

[10] M.A. Islam, P. Bowen and J.F. Knott: J. Mat. Eng. and Perf. ASM Inter. Vol. 14-1 (2005) p.28.

Google Scholar

[11] K. Nishioka and J.F. Knott: Mech. Engr. Publications, London (1990), p.241.

Google Scholar

[12] M.A. Islam: Ph.D. Thesis, The University of Birmingham, UK (2001).

Google Scholar