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Comparative Studies on the Wear of ADI Alloy Cast Irons as Well as Selected Steels and Surface-Hardened Alloy Cast Steels in the Presence of Abrasive

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EN
Abstrakty
EN
The paper presents the results of wear tests obtained for 4 groups of materials: surface-hardened alloy steels and alloy cast steels for structural applications, hard-wearing surface-hardened alloy cast steels, and austempered alloy cast irons. The wear tests have been performed on a specially designed test rig that allows reproducing the real operating conditions of chain wheels, including the rolling and sliding form of contact between elements. The chain wheels subjected to tests were operated with the use of loose quartz abrasive. This study presents results of measurements of material parameters, micro-structure of a surface subject to wear, as well as the linear wear determined for the materials considered. Based on the results, the following was found: the best wear properties were obtained for surface-hardened alloy steels and wear surface; strengthening of the ADI surface took place - most probably as a result of transformation of austenite into martensite; the uniformity of the structure of the materials affects the surface wear process. The study also indicated a significant degree of graphite deformation in ADI characterized by the upper ausferritic structure and its oblique orientation in relation to the surface, which resulted in a facilitated degradation of the surface caused by the quartz abrasive.
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Twórcy
  • Silesian University of Technology, Faculty of Mining and Geology, 2a Akademicka Str., 44-100 Gliwice, Poland
Bibliografia
  • [1] M. Dolipski, P. Cheluszka, E. Remiorz, P. Sobota, Arch. Mining Sci. 60, 1, 25-38 (2015).
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  • [18] Norm EN 1564:1997 - Founding. Austempered ductile cast irons.
  • [19] Technical Information OSMANIL E2.
  • [20] A. Wieczorek, Tribologia 1, 135-148 (2013).
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Uwagi
PL
Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017).
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Bibliografia
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bwmeta1.element.baztech-ab0af4dd-50fc-4d50-8fad-60117ad90c64
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