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Media type:
E-Article
Title:
Tribological performance of plasma nitrided H13 mould steel at elevated temperatures
Contributor:
Peng, Li;
Dejun, Kong
Published:
SAGE Publications, 2023
Published in:
Materials Science and Technology, 39 (2023) 7, Seite 795-802
Language:
English
DOI:
10.1080/02670836.2022.2142740
ISSN:
0267-0836;
1743-2847
Origination:
Footnote:
Description:
A nitrided layer was prepared on H13 mould steel by plasma nitriding. The characteristics of obtained nitrided layer were analysed using an ultra-depth of field microscope, atomic force microscope and X-ray diffraction, and the effect of elevated temperature on the wear performance was investigated using a ball-on-disk wear tester. The results show that the nitrided layer is composed of ϵ-Fe2-3N and γ′-Fe4N phases, which increases the substrate hardness by 111%. The nitrided layer at 800° exhibits superior friction reduction and wear resistance, and the wear mechanism is oxidative wear, which is contributed to the wear-resistant protective layer on the worn track.