Influence of Charge Composition on the Structure and Fatigue Properties of Nodular Cast Irons

Alan Vaško; Libor Trško; Mária Chalupová

doi:10.4028/www.scientific.net/MSF.782.295

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Cyclic Oxidation Behaviour of Heat Resistance Cast Steel
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Influence of Charge Composition on the Structure and Fatigue Properties of Nodular Cast Irons
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HomeMaterials Science ForumMaterials Science Forum Vol. 782Influence of Charge Composition on the Structure...

Influence of Charge Composition on the Structure and Fatigue Properties of Nodular Cast Irons

Abstract:

The contribution deals with comparison of microstructure and fatigue properties of synthetic nodular cast irons with a different ratio of steel scrap in a charge. Chemical composition of individual meltages was regulated alternatively by ferrosilicon (FeSi) and carburizer or metallurgical silicon carbide (SiC). The fatigue tests were run at high-frequency sinusoidal cyclic push-pull loading (frequency f 20 kHz, load ratio R = 1, temperature T = 20 ± 5 °C) using the ultrasonic testing equipment KAUP-ZU. The paper shows the influence of charge composition on microstructure, fatigue properties and micromechanisms of failure.

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Periodical:

Materials Science Forum (Volume 782)

Pages:

295-300

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.782.295

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Online since:

April 2014

Authors:

Alan Vaško*, Libor Trško, Mária Chalupová

Keywords:

Fatigue, Microstructure, Nodular Cast Iron, Silicon Carbide (SiC), Steel Scrap

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