Abstract
In this study, advanced surfaces and coatings have been developed using plasma thermochemical treatment, PVD coating, electroless Ni-BN plating and duplex surface engineering to produce low-friction and wear-resistant surfaces for cast iron stamping tools. Their microstructural and nano-mechanical properties were systematically analysed and the tribological behaviour of these new surfaces and coatings were evaluated. The experimental results have shown that under dry sliding condition, the tribological behaviour of aluminium differed great from that of steel regardless of the counterpart material. Highly reactive aluminium had a strong tendency to solder with tool surfaces during dry sliding. However, the lubricity of gray cast irons can be significantly improved by Ni-BN and DLC coatings. The coefficient of friction reduced from about 0.5 for untreated cast irons to about 0.2 sliding against aluminium. Duplex treatment combining plasma nitrocarburising with low-friction coatings showed superior durability than both DLC and Ni-BN coatings.
Original language | English |
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Title of host publication | 4th International Conference on New Forming Technology, ICNFT 2015 |
Publisher | EDP Sciences |
Volume | 21 |
ISBN (Electronic) | 9782759818235 |
DOIs | |
Publication status | Published - 10 Aug 2015 |
Event | 4th International Conference on New Forming Technology, ICNFT 2015 - Glasgow, United Kingdom Duration: 6 Aug 2015 → 9 Aug 2015 |
Conference
Conference | 4th International Conference on New Forming Technology, ICNFT 2015 |
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Country/Territory | United Kingdom |
City | Glasgow |
Period | 6/08/15 → 9/08/15 |
ASJC Scopus subject areas
- General Chemistry
- General Materials Science
- General Engineering