This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Effect of Strengthening Mechanism on Fatigue Properties of Hot-Rolled Sheet Steels
Technical Paper
2002-01-0042
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
The influence of tensile strength on fatigue strength and the effect of strengthening mechanism on fatigue notch factor were investigated into conventional mild steels, HSLA steels, DP steels and TRIP steels.
The grade of studied steels was altered from 440MPa to 780MPa. Not only smooth fatigue specimens with side surface ground and smooth fatigue specimens with laser-cut side surface but also fatigue specimens with a pierced hole were prepared for each of steel sheets. Fatigue tests were conducted in an axial load method.
These experiments made it clear that the fatigue limits of smooth specimen increase along the tensile strength approximately independent of strengthening mechanism but those of notched specimen do not necessarily increase along the tensile strength. Namely, fatigue limits of DP steels and TRIP steels with notch increase in proportion to tensile strength although those of HSLA steels with notch do not increase. Laser cut makes the side surface of specimen very rough compared to mechanical cut hereby fatigue limits of these steels decrease.
Recommended Content
Authors
Topic
Citation
Yokoi, T., Takahashi, M., and Ikenaga, N., "Effect of Strengthening Mechanism on Fatigue Properties of Hot-Rolled Sheet Steels," SAE Technical Paper 2002-01-0042, 2002, https://doi.org/10.4271/2002-01-0042.Also In
References
- Shirasawa H. ISIJ International 34 3 285 1994
- Tatsumi, T. Hara, K. Nakagome K. Matsui T. JSAE paper 9839173 1998
- Nakaya, M. Shiogama, T. Soshiroda T. Okano Y. Proc. IDDRG2000 2000
- Tomita, K. Shiozaki, T. Urabe T. Yoshitake A. Proc. 2000FISITA 2000
- Matsumura, O. Sakuma Y. Takechi H. Trans. ISIJ 27 570 1987
- Rashid M. S. SAE paper 760206 1976
- Embury J. D. Duncan J. L. Proc. TMS-AIME Sympo. On “Fundamentals of Dual-Phase Steels” 333 1981
- Furukawa, T. Morikawa, H. Takechi H. Koyama K. Proc. TMS-AIME Sympo. On “Structure and Properties of Dual-Phase Steels” 281 1979
- Koo, J. Y. Young M. J. Thomas G. Met. Trans. A 11A 852 1980
- Furukawa, T. Morikawa, H. Endo, M. Takechi, H. Koyama, K. Akisue O. Yamada T. Trans. ISIJ 21 812 1981
- JIS, B0601
- Kunio T. Yamada K. ASTM STP 675 342 1979
- Dutta, V. D. Suresh S. Ritche R. O. Metall. Trans. 15A 1193 1984
- Nakajima, K. Kamiishi, S. Yokoe, M Miyata T. ISIJ International 39 5 486 1999
- Yokoi, T. Kawasaki, K. Takahashi M. Koyama K. Mizui M. JSAE Review 17 210 1996