0
RESEARCH PAPERS

On the Decrease of Fatigue Limit Due to Small Prestrain

[+] Author and Article Information
Y. Nagase

Department of Mechanical Engineering, Shizuoka University, Johoku, Hamamatsu, 432 Japan

S. Suzuki

Toyoda Automatic Loom Works, LTD., Kyowa-cho, Ohbu, 474 Japan

J. Eng. Mater. Technol 114(3), 317-322 (Jul 01, 1992) (6 pages) doi:10.1115/1.2904179 History: Received October 27, 1989; Revised January 16, 1992; Online April 29, 2008

Abstract

Fatigue behavior of plain specimens of low carbon steel subjected to small tensile prestrain is investigated through rotating bending tests and the mechanism of the decrease of fatigue limit due to the prestrain is discussed. It is found that 3 percent prestraining causes the acceleration of both slip and crack initiations, and increases the growth rate of a small surface crack of less than 0.3 mm. It also decreases the fatigue limit. If prestrained material is aged, the fatigue limit increases. These effects of the small prestrain are explained based on the unpinning of locked dislocations due to the prestrain.

Copyright © 1992 by The American Society of Mechanical Engineers
Your Session has timed out. Please sign back in to continue.

References

Figures

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In