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Processing, microstructure, properties and wear behavior of in situ synthesized TiB 2 and TiC thick films on steel substrates
Department of Metallurgical and Materials Engineering, University of Engineering and Technology, Lahore.ORCID iD: 0000-0003-4888-6237
2007 (English)In: Surface & Coatings Technology, ISSN 0257-8972, E-ISSN 1879-3347, Vol. 201, no 24, p. 9603-9609Article in journal (Refereed) Published
Abstract [en]

TiB2 and TiC reinforced Fe matrix thick films (2 mm thickness) were produced through the synthesis reaction from Ti, C and FeB powders with varying porosity on the steel substrates. Powder technology was used as a processing method. The films and the substrates were sintered in a single step. TiB2, TiC and Fe were detected in the films by X-ray diffraction analysis. The fact that no other reaction product was detected revealed the thermal stability of TiB2 and TiC. The formation of secondary reaction products was inhibited during the reactive sintering. The films showed maximum strength of 163–466 MPa when sintered separately at 1350 °C. The strength of the films varied with their porosity. The films showed considerable bonding strength with the steel substrates. The delamination of the films from the steel substrates was observed at stress values from 454–781 MPa. The microstructure, fracture and delaminated surface morphologies were studied. The wear resistance against hardened high speed steel was studied in reciprocating sliding tests. The wear mechanisms were discussed by means of microscopical observation on the worn surfaces

Place, publisher, year, edition, pages
2007. Vol. 201, no 24, p. 9603-9609
National Category
Other Materials Engineering
Research subject
Engineering Materials
Identifiers
URN: urn:nbn:se:ltu:diva-10803DOI: 10.1016/j.surfcoat.2007.04.059Local ID: 9ab1b13c-83c2-4ec8-afa3-fb0187c21609OAI: oai:DiVA.org:ltu-10803DiVA, id: diva2:983751
Note
Upprättat; 2007; 20150416 (farakh)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2017-11-24Bibliographically approved

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