Work

The Effects of Certain Processing Technologies on the Cavitation Erosion of Lamellar Graphite Pearlitic Grey Cast Iron

Year: 2025

Type: article

Abstract: Lamellar graphite pearlitic grey cast irons are frequently used in the manufacturing of components that operate under cavitation erosion conditions. Their poor performance regarding cavitation erosion limits their use in intense cavitation environments. The physical modification of the surface layer offers a flexible and cost-effective way to combat cavitation attacks without altering the core properties. This paper comparatively analyzes the effects of four technological processing methods on the cavitation erosion resistance of grey cast irons. Cavitation erosion tests were conducted on a vibrating device with piezoceramic crystals in accordance with the ASTM G32-2016 standard. Surface hardness tests were carried out using a Vickers hardness tester, while roughness measurements were performed using a Mitutoyo device. The microstructures generated by the applied technologies and the surface wear mechanisms were analyzed using optical microscopy and scanning electron microscopy (SEM). The results indicated that the TIG local surface remelting process provides the most significant improvement in cavitation erosion resistance.

Source: Materials

DOI: 10.3390/ma18061358

Authors: Eduard Riemschneider, Ion Mitelea, Ilare Bordeașu, Corneliu Marius Crăciunescu, Ion Dragoș Uțu

Institution: Politehnica University of Timisoara

Language: English

Topic: Metal Alloys Wear and Properties

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

SDG: Industry, innovation and infrastructure

Open Access status: gold

Estimated APC paid: $3,137