| Title: | Wear resistance of coke-crushing hammers |
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| Authors: | ID Zupanič, Franc (Author) |
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| Files: |  http://www.maneyonline.com/doi/abs/10.1179/1879139513Y.0000000103
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| Language: | English |
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| Work type: | Not categorized |
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| Typology: | 1.01 - Original Scientific Article |
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| Organization: | FS - Faculty of Mechanical Engineering
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| Abstract: | This work investigated several methods for improving the wear resistance of the 42CrMo4 tool steel used for coke-crushing hammers. The methods embraced heat treatment for obtaining different combinations of strength and ductility of the bulk steel, and surface-engineering processes comprising TiN thin-film deposition using magnetron-sputtering, nitriding and WC/Ni weld deposit surfaced by gas metal arc (GMA) method. The wear-resistance was tested under industrial conditions. Oil quenching and tempering significantly increased the wear resistance in comparison to the as-received condition. Conversely, nitriding and TiN-hard coating did not show any significant improvement. WC/Ni weld deposit provided the best protection against wear, which was caused predominantly by hard abrasive particles present in the coke. |
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| Keywords: | zvarni spoj, mikrostrukture, obrabna odpornost, toplotna obdelava, obraba, kladivo, weld deposition, microstructure, impact coke crusher, heat treatment, wear, hammer |
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| Year of publishing: | 2013 |
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| Number of pages: | str. 458-464 |
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| Numbering: | Vol. 52, iss. 4 |
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| PID: | 20.500.12556/DKUM-50460  |
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| UDC: | 621.7 |
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| ISSN on article: | 0008-4433 |
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| COBISS.SI-ID: | 17093142 |
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| NUK URN: | URN:SI:UM:DK:LOCRDUNB |
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| Publication date in DKUM: | 10.07.2015 |
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| Views: | 2340 |
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| Downloads: | 84 |
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| Metadata: |    |
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| Categories: | Misc.
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