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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 (Engelska)Ingår i: Surface & Coatings Technology, ISSN 0257-8972, E-ISSN 1879-3347, Vol. 201, nr 24, s. 9603-9609Artikel i tidskrift (Refereegranskat) 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

Ort, förlag, år, upplaga, sidor
2007. Vol. 201, nr 24, s. 9603-9609
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Annan materialteknik
Forskningsämne
Materialteknik
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URN: urn:nbn:se:ltu:diva-10803DOI: 10.1016/j.surfcoat.2007.04.059Lokalt ID: 9ab1b13c-83c2-4ec8-afa3-fb0187c21609OAI: oai:DiVA.org:ltu-10803DiVA, id: diva2:983751
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Upprättat; 2007; 20150416 (farakh)Tillgänglig från: 2016-09-29 Skapad: 2016-09-29 Senast uppdaterad: 2017-11-24Bibliografiskt granskad

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