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Microstructure, mechanical properties, electrical conductivity and wear behavior of high volume TiC reinforced Cu-matrix composites
Institute of Powder Metallurgy, Materials Science Department, University of Science and Technology Beijing.ORCID-id: 0000-0003-4888-6237
Institute of Powder Metallurgy, Materials Science Department, University of Science and Technology Beijing.
Institute of Powder Metallurgy, Materials Science Department, University of Science and Technology Beijing.
Institute of Powder Metallurgy, Materials Science Department, University of Science and Technology Beijing.
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2009 (Engelska)Ingår i: Materials Characterization, ISSN 1044-5803, E-ISSN 1873-4189, Vol. 60, nr 4, s. 327-336Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

This study deals with the processing, microstructure, mechanical properties, electrical conductivity and wear behavior of high volume titanium carbide reinforced copper matrix composites. The microstructural study revealed that the titanium carbide particles were distributed uniformly in the matrix phase. No interface debonding and micro-cracks were observed in the composite. The addition of alloying elements in the copper considerably increased the sintered density and properties. The composite hardness and strength increased with titanium carbide content and alloying elements in the matrix phase. The electrical conductivities of the composites were predicted using three point upper bound and two phase self consistent predictive models. The wear resistance of the composites was studied against high speed steel. Wear mechanisms were discussed by means of microscope observations on the worn surfaces. The ratio of titanium carbide average grain size to the mean free path of the binder was introduced as a parameter to determine wear performance.

Ort, förlag, år, upplaga, sidor
2009. Vol. 60, nr 4, s. 327-336
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URN: urn:nbn:se:ltu:diva-14920DOI: 10.1016/j.matchar.2008.09.014Lokalt ID: e5b68837-fc0e-448f-98db-f8615f6ed9a7OAI: oai:DiVA.org:ltu-14920DiVA, id: diva2:987893
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Upprättat; 2009; 20150416 (farakh)Tillgänglig från: 2016-09-29 Skapad: 2016-09-29 Senast uppdaterad: 2017-11-24Bibliografiskt granskad

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