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Local Plasticity Exhaustion in a Very High Cycle Fatigue Regime
Linköping University, Department of Management and Engineering, Engineering Materials. Linköping University, The Institute of Technology.
Sandvik Materials Technology, Sandviken.
Sandvik Materials Technology, Sandviken.
Sandvik Materials Technology, Sandviken.
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2012 (English)In: Scripta Materialia, ISSN 1359-6462, E-ISSN 1872-8456, Vol. 66, no 10, 769-772 p.Article in journal (Refereed) Published
Abstract [en]

Very high cycle fatigue behaviors of four metal materials with different microstructures have been studied focusing on their damage mechanisms. It was found that the cyclic plastic deformation in the materials was highly localized in the very high cycle regime or the elastic deformation regime. This high strain localization can cause local plasticity exhaustion, which leads to a stress concentration and consequently fatigue crack initation, and finally the formation of a subsurface non-defect fatigue crack origin.

Place, publisher, year, edition, pages
Elsevier, 2012. Vol. 66, no 10, 769-772 p.
Keyword [en]
Very high cycle fatigue; Local plasticity exhaustion; Fatigue crack initiation; Damage mechanism
National Category
Engineering and Technology Materials Engineering
URN: urn:nbn:se:liu:diva-76040DOI: 10.1016/j.scriptamat.2012.02.003ISI: 000302756400013OAI: diva2:511772
Available from: 2012-03-23 Created: 2012-03-23 Last updated: 2012-05-04

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