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Influence of particle shape on zener drag
Luleå tekniska universitet.
Luleå tekniska universitet.
1990 (engelsk)Inngår i: Acta Metallurgica et Materialia, ISSN 0956-7151, Vol. 39, nr 6, s. 1045-1052Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Practically all papers concerned with grain refinement based on pinning by particle dispersions have considered spherical particles. This paper avoids this restriction and develops Zener pinning equations for ellipsoidal particles of any shape, orientation and degree of coherency. Theoretical predictions are verified using soap bubble model experiments. It is found that within well defined conditions of particle orientation, disk or needle-shaped particles may offer greater pinning resistance, or Zener drag to migrating boundaries than spherical ones. However, the pinning resistance of non-spherical particles is sensitive to particle orientation. Their use in alloys is best utilised in systems based on mono-orientation dispersions

sted, utgiver, år, opplag, sider
1990. Vol. 39, nr 6, s. 1045-1052
HSV kategori
Forskningsprogram
Materialteknik
Identifikatorer
URN: urn:nbn:se:ltu:diva-6611Lokal ID: 4db7d390-f49c-11db-ac9f-000ea68e967bOAI: oai:DiVA.org:ltu-6611DiVA, id: diva2:979497
Merknad

Godkänd; 1990; 20070427 (cira)

Tilgjengelig fra: 2016-09-29 Laget: 2016-09-29 Sist oppdatert: 2018-02-06bibliografisk kontrollert

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Easterling, Kenneth E.

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