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Media type:
E-Article
Title:
Correlation between Hardness and Fatigue Properties
Contributor:
Zubko, Pavol;
Pešek, Ladislav
Published:
Trans Tech Publications, Ltd., 2015
Published in:
Key Engineering Materials, 662 (2015), Seite 197-200
Language:
Without Specification
DOI:
10.4028/www.scientific.net/kem.662.197
ISSN:
1662-9795
Origination:
Footnote:
Description:
The contribution deals with estimation of tensile properties and fatigue behavior based on hardness measurement. First of all the database of tensile and fatigue properties vs. hardness data was created for a group of steels, from literature survey and performed experiments. Tensile strength, yield strength, ductility and parameters of Ludwig-Hollomon equation in static and cyclic loading were extracted and fitted in relation to the hardness HB. The experimental materials were API 5 L grade steels – X60 and X70 after different deformation exposition. Measured tensile curve (SC) and cyclic deformation curve (CDC) were compared with predicted curves. Hardness was measured in-situ during cyclic loading. The maximum possible hardness values were experimentally determined. The results give a good agreement between estimated and measured data of both static tensile test and fatigue properties.