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Surface pore initia...
Surface pore initiated fatigue failure in laser clad components
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- Alam, Md. Minhaj (author)
- Luleå tekniska universitet,Produkt- och produktionsutveckling
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- Powell, John (author)
- Luleå tekniska universitet,Institutionen för teknikvetenskap och matematik
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- Kaplan, Alexander (author)
- Luleå tekniska universitet,Produkt- och produktionsutveckling
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- Tuominen, Jari (author)
- Tampere University of Technology
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- Vuoristo, Petri MJ J (author)
- Tampere University of Technology
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- Miettinen, Juha S. (author)
- Tampere University of Technology
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- Poutala, J. (author)
- Department of Mechanics and Design, Tampere University of Technology
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- Näkki, Jonne (author)
- Tampere University of Technology
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- Junkala, J. (author)
- Tampere University of Technology
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- Peltola, Tero (author)
- Tampere University of Technology
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(creator_code:org_t)
- Laser Institute of America, 2013
- 2013
- English.
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In: Journal of laser applications. - : Laser Institute of America. - 1042-346X .- 1938-1387. ; 25:3
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.2...
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Abstract
Subject headings
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- A laser clad and machined cylindrical structural steel rod was fatigue tested under four-point bending load. The resulting fracture could be tracked back to a spherical surface pore in the Co-based coating. Due to an oxide inclusion, the pore was not identified by dye penetrant inspection. Two circular buckling strain patterns that were detected beside the pore at the surfaces after fracture confirm local plastic deformation prior to crack initiation. In order to calculate the stress field around the surface pore, linear elastic finite element analysis was carried out. For four-point bending load, a surface pore generally exceeds the maximum stress of a smooth rod as long as the pore is located within an azimuthal angle of ±55°, which was the case for the presented as well as for another pore initiated sample.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Bearbetnings-, yt- och fogningsteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Manufacturing, Surface and Joining Technology (hsv//eng)
Keyword
- Produktionsutveckling
- Manufacturing Systems Engineering
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Alam, Md. Minhaj
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Powell, John
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Kaplan, Alexande ...
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Tuominen, Jari
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Vuoristo, Petri ...
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Miettinen, Juha ...
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show more...
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Poutala, J.
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Näkki, Jonne
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Junkala, J.
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Peltola, Tero
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show less...
- About the subject
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- ENGINEERING AND TECHNOLOGY
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ENGINEERING AND ...
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and Materials Engine ...
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and Manufacturing Su ...
- Articles in the publication
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Journal of laser ...
- By the university
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Luleå University of Technology