Abrasive Wear Resistance of Ultrafine Ausferritic Ductile Iron Intended for the Manufacture of Gears for Mining Machinery

Dawid Myszka; Andrzej N Wieczorek; Emilia Skołek; Tomasz Borowski; Krzysztof Kotwica; Marek Kalita; Radosław Kruk; Paweł M Nuckowski

doi:10.3390/ma16124311

Abrasive Wear Resistance of Ultrafine Ausferritic Ductile Iron Intended for the Manufacture of Gears for Mining Machinery

Materials (Basel). 2023 Jun 11;16(12):4311. doi: 10.3390/ma16124311.

Authors

Dawid Myszka¹, Andrzej N Wieczorek², Emilia Skołek³, Tomasz Borowski³, Krzysztof Kotwica⁴, Marek Kalita⁵, Radosław Kruk⁶, Paweł M Nuckowski⁷

Affiliations

¹ Faculty of Mechanical and Industrial Engineering, Warsaw University of Technology, Narbutta 85 Street, 02-524 Warsaw, Poland.
² Faculty of Mining, Safety Engineering and Industrial Automation, Silesian University of Technology, Akademicka 2 Street, 44-100 Gliwice, Poland.
³ Faculty of Materials Engineering, Warsaw University of Technology, Wołoska 147 Street, 02-507 Warsaw, Poland.
⁴ Faculty of Mechanical Engineering and Robotics, AGH University of Science and Technology, 30-059 Cracow, Poland.
⁵ Division of Machines and Equipment, KOMAG Institute of Mining Technology, Pszczyńska 37 Street, 44-101 Gliwice, Poland.
⁶ Institute of Mechanical Engineering, Clausthal University of Technology, Robert-Koch-Straße 32, D-38678 Clausthal-Zellerfeld, Germany.
⁷ Materials Research Laboratory, Faculty of Mechanical Engineering, Silesian University of Technology, Konarskiego 18A Street, 44-100 Gliwice, Poland.

Abstract

The purpose of this study was to experimentally determine the abrasion wear properties of ausferritic ductile iron austempered at 250 °C in order to obtain cast iron of class EN-GJS-1400-1. It has been found that such a cast iron grade makes it possible to create structures for material conveyors used for short-distance transport purposes, required to perform in terms of abrasion resistance under extreme conditions. The wear tests addressed in the paper were conducted at a ring-on-ring type of test rig. The test samples were examined under the conditions of slide mating, where the main destructive process was surface microcutting via loose corundum grains. The mass loss of the examined samples was measured as a parameter characteristic of the wear. The volume loss values thus obtained were plotted as a function of initial hardness. Based on these results, it has been found that prolonged heat treatment (of more than 6 h) causes only an insignificant increase in the resistance to abrasive wear.

Keywords: abrasion wear; ausferritic ductile iron; austempering temperature; gears.

Grants and funding

PBS3/B5/45/2015/National Centre for Research and Development