On fatigue behavior of two spring steels. Part I: Wöhler curves and fractured surfaces

##plugins.themes.bootstrap3.article.sidebar##

PDF
Published Jun 13, 2016
DOI https://doi.org/10.3221/IGF-ESIS.37.33

##plugins.themes.bootstrap3.article.main##

D. Angelova R. Yordanova T. Lazarova S. Yankova

Abstract

Symmetric fatigue in two spring steels is investigated in three groups of specimens. One of the groups (Steel EN10270-1SH/ DIN 17223C – C 0.82%, Mn 0.76%, Si 0.26%) has experienced rotating-bending fatigue in air, and the other two groups (Steel BS250A53/ DIN 55Si7 – C 0.56%, Mn 0.81%, Si 1.85%), torsion fatigue in-air and corrosion environment. Fatigue life-time data are obtained for both spring steels, and their corresponding Wöhler curves plotted and mathematically described. Surface short fatigue cracks are observed from origin to fracture by using acetate-foil replication technique, and their length, a, measured at the corresponding number of fatigue cycles, N. Those data are presented in plots “Crack lengths, a – Cycles, N” and a comparison made between both the steels. The fractured surfaces of all specimens have been studied and analyzed by the scanning-electron microscopy methods

Comments

  1. Latest Oldest Top Comments

    Downloads

    Download data is not yet available.

    ##plugins.themes.bootstrap3.article.details##

    Issue
    Vol. 10 No. 37 (2016): July 2016
    Section
    Miscellanea

    How to Cite

    Angelova, D. (2016) “On fatigue behavior of two spring steels. Part I: Wöhler curves and fractured surfaces”, Frattura ed Integrità Strutturale, 10(37), pp. 249–257. doi: 10.3221/IGF-ESIS.37.33.

    Copyright 
    Authors are allowed to retain both the copyright and the publishing rights of their articles without restrictions.  

    Open Access Statement

    Frattura ed Integrità Strutturale (Fracture and Structural Integrity, F&SI) is an open-access journal which means that all content is freely available without charge to the user or his/her institution. Users are allowed to read, download, copy, distribute, print, search, or link to the full texts of the articles in this journal without asking prior permission from the publisher or the author. This is in accordance with the DOAI definition of open access.

    F&SI operates under the Creative Commons Licence Attribution 4.0 International (CC-BY 4.0). This allows to copy and redistribute the material in any medium or format, to remix, transform and build upon the material for any purpose, even commercially, but giving appropriate credit and providing a link to the license and indicating if changes were made.