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Tensile strength and fracture energy of pressed metal powder by diametral compression test
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Mechanics of Solid Materials.ORCID iD: 0000-0003-0910-7990
2007 (English)In: Powder Technology, ISSN 0032-5910, E-ISSN 1873-328X, Vol. 176, no 2-3, p. 148-155Article in journal (Refereed) Published
Abstract [en]

A critical property in the metal powder pressing process is the strength of the green body. Diametral compression test or the Brazilian disc test is one method to characterise green tensile strength. Pre-alloyed water atomised iron powder has been pressed into discs with different densities. The characteristics of the fracture development and load response are studied in detail. Crack initiation and the tensile fracture process of pressed metal powder discs are studied. Methods to determine the tensile strength and fracture energy of pressed metal powder are presented. A cohesive material behaviour is found in the experiments. Both tensile strength and fracture energy are strongly dependent on density in the measured range.

Place, publisher, year, edition, pages
2007. Vol. 176, no 2-3, p. 148-155
National Category
Applied Mechanics
Research subject
Solid Mechanics
Identifiers
URN: urn:nbn:se:ltu:diva-7753DOI: 10.1016/j.powtec.2007.02.030ISI: 000248860500013Scopus ID: 2-s2.0-34447310839Local ID: 62ac93b0-f962-11db-b2dd-000ea68e967bOAI: oai:DiVA.org:ltu-7753DiVA, id: diva2:980643
Note

Validerad; 2007; 20070503 (cira)

Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-07-10Bibliographically approved

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Jonsén, PärHäggblad, Hans-åkeSommer, Kristin

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CiteExportLink to record
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  • apa
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