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Microstructure evolution and wear properties of in situ synthesized TiB 2 and TiC reinforced steel matrix composites
Department of Metallurgical and Materials Engineering, University of Engineering and Technology, Lahore.ORCID iD: 0000-0003-4888-6237
2008 (English)In: Journal of Alloys and Compounds, ISSN 0925-8388, E-ISSN 1873-4669, Vol. 459, no 1-2, p. 491-497Article in journal (Refereed) Published
Abstract [en]

Steel matrix composite reinforced with TiB2 and TiC reinforcements (30 to 70wt%) have been produced through the synthesis reaction from Ti, C and FeB. The sintered composites were characterized by X-ray diffraction and scanning electron microscopy. TiB2, TiC and steel were detected by X-ray diffraction analysis. The scanning electron micrographs revealed the morphology and distribution of the reinforcements. TiB2 and TiC were thermally stable in the steel matrix. The results showed that different mechanisms of evolution of reinforcements in steel matrix were operative. TiB2 grew in hexagonal prismatic or rectangular shape and TiC in spherical shape. The reciprocating sliding wear test was conducted on the composite. The results of sliding wear showed that the wear loss decreased with increase in the reinforcement content. The wear mechanisms were polishing wear and microploughing for the composites containing high volume fraction of the reinforcements, whereas microploughing and grooving were the dominant wear mechanisms for the composites containing low volume fraction of the reinforcements.

Place, publisher, year, edition, pages
2008. Vol. 459, no 1-2, p. 491-497
National Category
Other Materials Engineering
Research subject
Engineering Materials
Identifiers
URN: urn:nbn:se:ltu:diva-3030DOI: 10.1016/j.jallcom.2007.05.018Local ID: 0c874154-c73c-4772-8b4d-a9a622dcc575OAI: oai:DiVA.org:ltu-3030DiVA: diva2:975885
Note
Upprättat; 2008; 20150416 (farakh)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2017-11-24Bibliographically approved

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CiteExportLink to record
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