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Investigations into wear and galling mechanism of aluminium alloy-tool steel tribopair at different temperatures
Fundació CTM Centre Tecnològic, Avda.
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Machine Elements.ORCID iD: 0000-0003-3123-0303
Fundació CTM Centre Tecnològic, Avda.
Fundació CTM Centre Tecnològic, Avda.
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2013 (English)In: Wear, ISSN 0043-1648, E-ISSN 1873-2577, Vol. 308, no 1-2, p. 193-198Article in journal (Refereed) Published
Abstract [en]

Aluminium alloys show poor formability at room temperature, and the production of complex components requires a series of high temperature forming processes, such as warm and hot forging, extrusion and hot sheet metal forming. Forming aluminium in these conditions subjects the tools to severe adhesive wear and galling, leading to increased energy needs, shorter tool life, lower part quality and increased cost. In this work, the wear mechanisms generated by aluminium alloys on forming tools have been studied by means of linear reciprocating sliding tests. Aluminium alloy AA2017 balls were slid against DIN 1.2344 (AISI H13) tool steel samples with various surface finishes at temperatures up to 450 °C. The main results show that the observed wear mechanisms are extremely dependent on the system temperature, ranging from pure abrasive wear to formation of layers of compacted aluminium debris and gross aluminium transfer in the form of lumps. On the other hand, tool surface finish has a limited effect on gross material transfer, but does affect the material transfer micromechanisms

Place, publisher, year, edition, pages
2013. Vol. 308, no 1-2, p. 193-198
National Category
Tribology (Interacting Surfaces including Friction, Lubrication and Wear)
Research subject
Machine Elements
Identifiers
URN: urn:nbn:se:ltu:diva-31961DOI: 10.1016/j.wear.2013.06.015ISI: 000330910900025Scopus ID: 2-s2.0-84890124402Local ID: 649f535b-c23b-461e-9352-6d1d21e7f4b0OAI: oai:DiVA.org:ltu-31961DiVA, id: diva2:1005195
Conference
Nordic Symposium on Tribology : 12/06/2012 - 15/06/2012
Note
Validerad; 2013; 20130701 (andbra); Konferensartikel i tidskriftAvailable from: 2016-09-30 Created: 2016-09-30 Last updated: 2018-07-10Bibliographically approved

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Pelcastre, LeonardoPrakash, Braham

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