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Influence of tool steel carbide orientation on sliding wear
Karlstad University, Faculty of Health, Science and Technology (starting 2013).
2013 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesisAlternative title
Inverkan av karbidorientering hos ett verktygsstål på glidande slitage (Swedish)
Abstract [en]

For SMF industry, galling of tool in SMF operation during forming of stainless steel is a major concern, this increase the interest to study influence of tool microstructure on galling. In the present work, ingot cast AISI D2 were evaluated concerning wear mechanisms and critical sliding distance against austenitic stainless steel sheet in lubricated sliding condition at different contact pressures using a slider-on-flat-surface (SOFS) tribometer for carbide phases oriented in three different directions. At the initial sliding abrasive scratching by protruding carbide phases were the initial wear mechanism. Further sliding led to growth of sheet material transfer with formation of lump covering of the tool surfaces both carbide phase and metal matrix. AISI D 2 tool with protruding carbide that has relatively evenly distributed small round shaped carbides and higher volume fraction of carbide had a positive influence in terms of galling at low normal load and has shown best tool performance.

Place, publisher, year, edition, pages
2013. , 35 p.
National Category
Engineering and Technology
URN: urn:nbn:se:kau:diva-27205Local ID: MT:2OAI: diva2:620672
Subject / course
Mechanical Engineering
Available from: 2013-06-18 Created: 2013-05-09 Last updated: 2013-06-18Bibliographically approved

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Larsson, Johanna Meseret Berhe
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