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The effect of temperature on the transfer layer of an aluminium alloy on tool steel and the effect of CrN coating
ID Kalin, Mitjan (Author), ID Jerina, Jure (Author), ID Sharma, Sandan Kumar (Author), ID Kovač, Janez (Author)

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Abstract
It is essential to explore temperature's crucial role while unveiling the intricacies of tribological interplay in CrN-coated steel-alloy systems. In the present study, tribological potential of CrN-coated hot-work tool steel was investigated under unidirectional single-pass sliding wear conditions. The sliding wear tests were performed at different temperatures (i.e., 20 °C, 100 °C, 200 °C, 300 °C, 400 °C and 500 °C) for the different sliding distances between 2 mm and 68 mm to explore the effect of temperature on the initiation and evolution of the transfer of an aluminium alloy (EN AW-6060). The effect was studied in terms of the contact area of the aluminium alloy and the volume transferred to the surface of the CrN. In addition, the structure of the wear trace and the equivalent friction coefficient were monitored with respect to the sliding distance and the temperature. The results show the strong dependency of the tribological potential of the CrN coating and the aluminium alloy on the temperature but show insignificant dependency on the sliding distance. When sliding up to 200 °C, the transfer was found to be dependent on the surface roughness of the coating, while strong adhesion led to the aluminium alloy's transfer during sliding at higher temperatures, that is, above 300 °C. At 500 °C, the CrN coating formed a self-protective Cr2O3 oxide that reduced the adhesive transfer of the alloy to the CrN compared to that at 200 °C–300 °C.

Language:English
Keywords:aluminijeve zlitine, CrN prevleke, prenos materiala, trenje, obraba
Work type:Article
Typology:1.01 - Original Scientific Article
Organization:FS - Faculty of Mechanical Engineering
Publication status:Published
Publication version:Version of Record
Year:2024
Number of pages:Str. 11-19
Numbering:Vol. 18, iss. 1
PID:20.500.12556/RUL-156366 This link opens in a new window
UDC:539.92:669.715
ISSN on article:1751-5831
DOI:10.1177/17515831231212633 This link opens in a new window
COBISS.SI-ID:196255747 This link opens in a new window
Publication date in RUL:22.05.2024
Views:81
Downloads:58
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Record is a part of a journal

Title:Tribology : materials surfaces & interfaces
Publisher:Maney Publishing
ISSN:1751-5831
COBISS.SI-ID:11678235 This link opens in a new window

Secondary language

Language:Slovenian
Keywords:aluminium alloys, CrN coatings, material transfer, friction, wear

Projects

Funder:ARIS - Slovenian Research and Innovation Agency
Project number:P2-0231
Name:Tribologija

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