0

Full Content is available to subscribers

Subscribe/Learn More  >

Effects of Microvoids, Oxide Inclusions, and Sulfide Inclusions of the Fatigue Strength of Wheel Steels

[+] Author Affiliations
Daniel H. Stone

Hunter Holiday Consulting, Pueblo, CO

Francisco Robles

Transportation Technology Center, Inc., Pueblo, CO

Geoffrey Dahlman

Burlington Northern Santa Fe Railroad, Topeka, KS

Paper No. JRC/ICE2007-40011, pp. 7-11; 5 pages
doi:10.1115/JRC/ICE2007-40011
From:
  • ASME/IEEE 2007 Joint Rail Conference and Internal Combustion Engine Division Spring Technical Conference
  • ASME/IEEE 2007 Joint Rail Conference and Internal Combustion Engine Division Spring Technical Conference
  • Pueblo, Colorado, USA, March 13–16, 2007
  • Conference Sponsors: Rail Transportation Division and Internal Combustion Engine Division
  • ISBN: 0-7918-4787-X | eISBN: 0-7918-3795-5
  • Copyright © 2007 by Transportation Technology Center, Inc.

abstract

The effects of microscopic discontinuities on reducing the fatigue strength of steels are well known. This paper will attempt to quantify the reduction of fatigue strength due to measured quantities of microvoids, oxide inclusions, and sulfide inclusions of the fatigue strength of wheel steels. Murikami and Endo have derived a model that relates the effects of void and inclusion area and hardness on the fatigue endurance limit. In the present work is presented a unique analysis where the effect of microcleanliness is investigated. The Murikami model was used for simplicity and because the goal in this publications is to demonstrate that inclusions play an important role on wheel performance. This work summarizes the microcleanliness analysis of 113 wheels; most of such wheels were removed from revenue service due to failure. The nature of the failure indicates that the wheels failed due to a fatigue related problem. For these reason, it is of paramount interest to determine the effects of defects (i.e. voids or inclusions) on wheel performance. For this reason a simple model (Murikami) was employed to quantify the effect of defects that were measured using the microanalysis.

Copyright © 2007 by Transportation Technology Center, Inc.

Figures

Tables

Interactive Graphics

Video

Country-Specific Mortality and Growth Failure in Infancy and Yound Children and Association With Material Stature

Use interactive graphics and maps to view and sort country-specific infant and early dhildhood mortality and growth failure data and their association with maternal

NOTE:
Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

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.

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