Original scientific paper

The effect of high-frequencies loading on the fatigue cracking of nodular cast iron

R. Ulewicz ; Czestochowa University of Technology, Czestochowa, Poland
P. Tomski ; Czestochowa University of Technology, Czestochowa, Poland

Abstract

The article presents the results of fatigue tests using high-frequency loading of nodular cast iron. Nodular cast iron GJS-500-7, GJS-600-3 and cast iron ADI with a tensile strength of R_m = 1 125 MPa were used for the tests. The fatigue tests were conducted on a resonance testing machine. For the cast iron grades under investigation, fatigue characteristics in high and ultra-high-cycle regions were experimentally determined. After the completion of the tests, the fractographic analysis of fatigue fractures was made with the aim of determining the fatigue crack initiation location and the fracture mechanism.

Keywords

nodular cast iron; fatigue failure; high frequency fatigue testing; fractography

Hrčak ID:

168847

URI

https://hrcak.srce.hr/168847

Publication date:

2.1.2017.

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