<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>Despite the tendency of the current industry, especially the automotive industry, it is to use modern, light and super-strong materials based on Al or HSLA steels, the application of classic materials such as cast iron still makes sense, especially concerning price and excellent castability. The article presents one of the possible ways of using the ultrasonic non-destructive method in quality control and simplification of the identification of the type of cast iron concerning the change of parameters of ultrasound propagation in materials. The main criteria for assessing the quality and determining the type of graphite cast iron were considered to be the rate of propagation of ultrasound - c<sub>L</sub> and the value of attenuation - α, which vary depending on the shape of the graphite and matrix. Graphitic cast irons with different graphite shapes (lamellar, vermicular, and globular shapes) and a matrix with different ferrite/perlite ratios were used as experimental material. Along with the ultrasonic tests, a metallographic analysis was also performed to quantify the microstructure of cast irons.</p>
</abstract>

Despite the tendency of the current industry, especially the automotive industry, it is to use modern, light and super-strong materials based on Al or HSLA steels, the application of classic materials such as cast iron still makes sense, especially concerning price and excellent castability. The article presents one of the possible ways of using the ultrasonic non-destructive method in quality control and simplification of the identification of the type of cast iron concerning the change of parameters of ultrasound propagation in materials. The main criteria for assessing the quality and determining the type of graphite cast iron were considered to be the rate of propagation of ultrasound - cL and the value of attenuation - α, which vary depending on the shape of the graphite and matrix. Graphitic cast irons with different graphite shapes (lamellar, vermicular, and globular shapes) and a matrix with different ferrite/perlite ratios were used as experimental material. Along with the ultrasonic tests, a metallographic analysis was also performed to quantify the microstructure of cast irons.

Influence of Structural Parameters - the Shape of Graphite and Matrix on Change of Ultrasonic Wave Propagation Rate and Value of Attenuation in Graphitic Cast Irons

Production Engineering Archives

This work is licensed under the Creative Commons Attribution 4.0 International License.

Despite the tendency of the current industry, especially the automotive industry, it is to use modern, light and super-strong materials based on Al or HSLA...

Influence of Structural Parameters - the Shape of Graphite and Matrix on Change of Ultrasonic Wave Propagation Rate and Value of Attenuation in Graphitic Cast Irons

Published Online: Feb 15, 2023

Page range: 23 - 27

Received: May 31, 2022

Accepted: Oct 21, 2022

DOI: https://doi.org/10.30657/pea.2023.29.4

Keywords
ultrasonic investigation, quality assurance of cast iron, graphite shape, pearlite and ferrite ratio, quantitative evaluation of graphite and matrix

© 2023 Juraj Belan et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Influence of Structural Parameters - the Shape of Graphite and Matrix on Change of Ultrasonic Wave Propagation Rate and Value of Attenuation in Graphitic Cast Irons

Published Online: Feb 15, 2023

Page range: 23 - 27

Received: May 31, 2022

Accepted: Oct 21, 2022

DOI: https://doi.org/10.30657/pea.2023.29.4

Keywordsultrasonic investigation, quality assurance of cast iron, graphite shape, pearlite and ferrite ratio, quantitative evaluation of graphite and matrix

© 2023 Juraj Belan et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Keywords
ultrasonic investigation, quality assurance of cast iron, graphite shape, pearlite and ferrite ratio, quantitative evaluation of graphite and matrix