Dependance Between Charge Composition and Fatigue Properties of Nodular Cast Irons
Abstract
The contribution deals with comparison of microstructure and fatigue
properties of synthetic nodular cast irons. The basic charge of experimental meltages was
formed by the different ratio of pig iron and steel scrap. The chemical composition of
individual meltages was regulated alternatively by carburizer and ferrosilicon (FeSi) 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.
Collections
- Artykuły / Articles [15057]
Using this material is possible in accordance with the relevant provisions of fair use or other exceptions provided by law. Other use requires the consent of the holder.