Title of article
Estimation of Maximum Inclusion Size and Fatigue Limit in HSLA-100 Steel
Author/Authors
Abyazi, A Azarbaijan Shahid Madani University , Ebrahimi, A.R Department of Materials and Metallurgical engineering - Amirkabir University of Technology - Tehran, Iran
Pages
5
From page
16
To page
20
Abstract
The objective of the current study is to determine the fatigue limit of a clean and high performance material named as
HSLA-100 steel, and to compare the obtained fatigue limit with that of theoretically predicted fatigue limit by statistics
of extreme value (SEV) method. Also the size of inclusions located at the site of fatigue crack nucleation on the fracture
surface of the fatigue test specimens was compared with the results of extreme value distribution of the inclusions as
well as with that of analysis of inclusions found on polished specimen. The fatigue cracks were initiated from spherical
inclusions in all fatigue test specimens. Analyzing the fatigue results showed that the SEV method can conservatively
predict the planar fatigue limit of HSLA-100 steel. Also the largest inclusion size predicted by (SEV) method was larger
than that of observed at fatigue crack initiation site as well as metallographic studies of polished specimens.
Keywords
Non-metallic inclusion size , HSLA-100 steel , Fatigue limit , Statics of Extreme Values SEV
Journal title
International Journal of Iron and Steel Society of Iran
Serial Year
2019
Record number
2523985
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