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A numerical model f...
A numerical model for simulating the effect of strain rate on eutectic band thickness
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- Draxler, Joar (author)
- Högskolan Väst,Avdelningen för svetsteknologi (SV),PTW,University West
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- Åkerström, Paul (author)
- Luleå tekniska universitet,Material- och solidmekanik,Lulea University of Technology, 97187 Luleå, Sweden,Luleå tekniska universitet (LTU),Luleå University of Technology (LTU)
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- Edberg, Jonas (author)
- Luleå tekniska universitet,Material- och solidmekanik,Lulea University of Technology, 97187 Luleå, Sweden,Luleå tekniska universitet (LTU),Luleå University of Technology (LTU)
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- Lindgren, Lars-Erik (author)
- Luleå tekniska universitet,Material- och solidmekanik,Lulea University of Technology, 97187 Luleå, Sweden,Luleå tekniska universitet (LTU),Luleå University of Technology (LTU)
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- Singh, Sukhdeep, 1988 (author)
- Chalmers University of Technology, 41296, Göteborg, Sweden,Chalmers tekniska högskola
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- Raza, Tahira, 1972- (author)
- Högskolan Väst,Avdelningen för svetsteknologi (SV),PTW,University West
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- Andersson, Joel, 1981- (author)
- Högskolan Väst,Avdelningen för svetsteknologi (SV),PTW,University West
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(creator_code:org_t)
- 2020-06-16
- 2020
- English.
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In: Welding in the World. - : Springer. - 0043-2288 .- 1878-6669. ; 64:10, s. 1635-1658
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Abstract
Subject headings
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- Large tensile strains acting on the solidifying weld metal can cause the formation of eutectic bands along grain boundaries. These eutectic bands can lead to severe liquation in the partially melted zone of a subsequent overlapping weld. This can increase the risk of heat-affected zone liquation cracking. In this paper, we present a solidification model for modeling eutectic bands. The model is based on solute convection in grain boundary liquid films induced by tensile strains. The proposed model was used to study the influence of strain rate on the thickness of eutectic bands in Alloy 718. It was found that when the magnitude of the strain rate is 10 times larger than that of the solidification rate, the calculated eutectic band thickness is about 200 to 500% larger (depending on the solidification rate) as compared to when the strain rate is zero. In the paper, we also discuss how eutectic bands may form from hot cracks.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik -- Teknisk mekanik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Applied Mechanics (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Bearbetnings-, yt- och fogningsteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Manufacturing, Surface and Joining Technology (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Metallurgi och metalliska material (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Metallurgy and Metallic Materials (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Annan materialteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Other Materials Engineering (hsv//eng)
Keyword
- Macrosegregation
- Solidification
- Hot cracking
- Alloy 718
- Hållfasthetslära
- Solid Mechanics
- Production Technology
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Draxler, Joar
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Åkerström, Paul
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Edberg, Jonas
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Lindgren, Lars-E ...
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Singh, Sukhdeep, ...
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Raza, Tahira, 19 ...
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show more...
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Andersson, Joel, ...
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- About the subject
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- ENGINEERING AND TECHNOLOGY
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ENGINEERING AND ...
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and Mechanical Engin ...
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and Applied Mechanic ...
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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 ...
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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 Metallurgy and M ...
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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 Other Materials ...
- Articles in the publication
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Welding in the W ...
- By the university
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Luleå University of Technology
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University West
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Chalmers University of Technology