Fatigue behaviour of calcium-treated and non-calcium-treated AISI 8620 carburizing steel

P. Juvonen, Hannu Hänninen

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Abstract

Fatigue properties of Ca-treated and non-Ca-treated AISI 8620 carburizing steel casts with different inclusion distributions were investigated by rotating bending fatigue testing with stress ratio R = -1. The applicability of Murakami-Endo model in predicting the fatigue strength and the lower bound of fatigue limit was examined. Extreme value statistics approach was used to predict the maximum inclusion size and a comparison was made with cleanliness level estimations by ENV 10247 standard and Stahl-Eisen Prufblatt method. The results of these cleanliness level estimations were inconsistent with the results of the statistics of extreme method. The sizes of the inclusions, which initiated the fatigue cracks were clearly larger than the maximum inclusion sizes predicted by the statistics of extreme method. The reason for this may be that the inclusion distribution of the casts is not exponential or that the largest inclusions follow a distribution of their own.

Original languageEnglish
Title of host publicationADVANCES IN MECHANICAL BEHAVIOUR, PLASTICITY AND DAMAGE, VOLS 1 AND 2, PROCEEDINGS
EditorsD Miannay, P Costa, D Francois, A Pineau
PublisherElsevier Science B.V.
Pages1059-1064
Number of pages6
ISBN (Print)0-08-042815-0
Publication statusPublished - 2000
MoE publication typeA4 Article in a conference publication
EventEuropean Conference on Advances in Mechanical Behaviour, Plasticity and Damage - Tours, France
Duration: 7 Nov 20009 Nov 2000

Conference

ConferenceEuropean Conference on Advances in Mechanical Behaviour, Plasticity and Damage
Abbreviated titleEUROMAT
CountryFrance
CityTours
Period07/11/200009/11/2000

Keywords

  • fatigue
  • fatigue limit
  • non-metallic inclusion
  • statistics of extreme
  • calcium-treatment
  • inclusion rating
  • root area parameter model
  • NON-METALLIC INCLUSIONS
  • HIGH-STRENGTH STEELS
  • QUANTITATIVE-EVALUATION
  • LIMIT
  • SIZE

Cite this

Juvonen, P., & Hänninen, H. (2000). Fatigue behaviour of calcium-treated and non-calcium-treated AISI 8620 carburizing steel. In D. Miannay, P. Costa, D. Francois, & A. Pineau (Eds.), ADVANCES IN MECHANICAL BEHAVIOUR, PLASTICITY AND DAMAGE, VOLS 1 AND 2, PROCEEDINGS (pp. 1059-1064). Elsevier Science B.V..