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On the Microstructure and Wear Resistance of Fe-based Composite Coatings Processed by Plasma Cladding with B4C Injection
KTH, School of Industrial Engineering and Management (ITM), Machine Design (Dept.), Tribologi. School of Materials Science and Engineering, Zhengzhou University, Zhengzhou, PR China .ORCID iD: 0000-0001-7560-6232
School of Materials Science and Engineering, Zhengzhou University, Zhengzhou, PR China .
School of Materials Science and Engineering, Zhengzhou University, Zhengzhou, PR China .
2015 (English)In: Ceramics International, ISSN 0272-8842, E-ISSN 1873-3956, Vol. 41, no 9, 10934-10939 p.Article in journal (Refereed) Published
Abstract [en]

Fe-based composite coatings were fabricated on Q235 steel substrate by plasma cladding. B4C particles were injected at the center and edge of the melting pool as strengthening phase. Scanning electron microscopy and pin-on-disc tribometer were applied to study the microstructure and wear resistance of the coatings. The results showed that the central injected B4C particles dissolved during plasma cladding and cementite generated. Edge injected B4C particles remained and performed metallurgical bonding with the metal matrix. With Fe-based coating containing edge injected B4C particles, wear resistance increased largely and the wear rate became 1/8 of the Q235 substrate. Afterwards, Fe-based coatings with edge injected B4C particles were prepared on real pieces of 50 picks and 12 chutes, which were taken into field probations. Average service lives of the coated picks and chutes increased 3.4 times and 5.6 times, respectively, compared with the conventional 16Mn and 42CrMo pick and chute components.

Place, publisher, year, edition, pages
Elsevier, 2015. Vol. 41, no 9, 10934-10939 p.
Keyword [en]
Injection moulding, Surfaces, Wear resistance, Carbides
National Category
Tribology (Interacting Surfaces including Friction, Lubrication and Wear)
Identifiers
URN: urn:nbn:se:kth:diva-169688DOI: 10.1016/j.ceramint.2015.05.036ISI: 000359165500076Scopus ID: 2-s2.0-84929774016OAI: oai:DiVA.org:kth-169688DiVA: diva2:824526
Note

QC 20150622

Available from: 2015-06-22 Created: 2015-06-22 Last updated: 2018-01-11Bibliographically approved

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Publisher's full textScopushttp://dx.doi.org/10.1016/j.ceramint.2015.05.036

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Lyu, Yezhe

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