Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Novel suspension route to incorporate graphene nano-platelets in HVAF-sprayed Cr3C2–NiCr coatings for superior wear performance
University West, Department of Engineering Science, Division of Subtractive and Additive Manufacturing.ORCID iD: 0000-0003-2475-9284
University of Chalmers, Göteborg.
University West, Department of Engineering Science, Division of Subtractive and Additive Manufacturing.ORCID iD: 0000-0003-1732-6544
University of Chalmers, Göteborg.ORCID iD: 0000-0002-8945-3799
Show others and affiliations
2021 (English)In: Journal of Materials Research and Technology, ISSN 2238-7854, Vol. 13, p. 498-512Article in journal (Refereed) Published
Abstract [en]

Graphene nano platelets (GNP) have several attractive properties, including excellent lubricity that can be used to develop wear-resistant coatings. Thermally sprayed chromium carbide–nickel chromium (Cr3C2–NiCr) coatings are widely employed to impart wear resistance to engineering components. This work attempts to improve the wear resistance of high velocity air fuel (HVAF) sprayed Cr3C2–NiCr coatings by incorporating GNP using a hybrid approach in which Cr3C2–NiCr (powder) and GNP (suspension) are co-axially injected. Two different powder-to-suspension delivery ratios were employed in this study that utilizes a liquid feedstock in tandem with a HVAF system. Furthermore, for comparison, a pure (without graphene) Cr3C2–NiCr reference coating was deposited by the HVAF process using identical spray parameters. The as-sprayed coatings were characterized for their microstructure and phase constitution by SEM/EDS and X-Ray Diffraction. Mechanical properties such as hardness and fracture toughness were evaluated using micro-indentation technique. The hybrid coatings were subjected to dry sliding wear tests and wear performance was compared with reference Cr3C2–NiCr. The GNP incorporated hybrid coatings exhibited lower CoF and lower wear rates than the reference Cr3C2–NiCr coating. Post wear SEM/EDS analysis revealed different wear mechanisms predominant in the investigated coatings. Utilizing the above as a case study, this work provides key insights into a new approach to produce GNP incorporated coatings for mitigating wear.

Place, publisher, year, edition, pages
Elsevier, 2021. Vol. 13, p. 498-512
Keywords [en]
Metals and Alloys, Surfaces, Coatings and Films, Biomaterials, Ceramics and Composites
National Category
Manufacturing, Surface and Joining Technology
Research subject
Production Technology
Identifiers
URN: urn:nbn:se:hv:diva-17923DOI: 10.1016/j.jmrt.2021.04.096ISI: 000677670200008Scopus ID: 2-s2.0-85116863849OAI: oai:DiVA.org:hv-17923DiVA, id: diva2:1619479
Funder
Swedish Energy AgencySwedish Research Council FormasVinnovaAvailable from: 2021-12-13 Created: 2021-12-13 Last updated: 2022-04-04Bibliographically approved

Open Access in DiVA

fulltext(5975 kB)96 downloads
File information
File name FULLTEXT01.pdfFile size 5975 kBChecksum SHA-512
979571e2c7c06b7d43d0ccc788cc5440e3433814ff2ac2eb166ebf1d4454ccae7f0d40e9b5d8d8e5cf140a1cd015cb795995f965241277605c55c6eada60b33f
Type fulltextMimetype application/pdf

Other links

Publisher's full textScopus

Authority records

Mahade, SatyapalBjörklund, StefanJoshi, Shrikant

Search in DiVA

By author/editor
Mahade, SatyapalBjörklund, StefanKlement, UtaJoshi, Shrikant
By organisation
Division of Subtractive and Additive ManufacturingResearch Enviroment Production Technology West
Manufacturing, Surface and Joining Technology

Search outside of DiVA

GoogleGoogle Scholar
Total: 96 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 76 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf