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Influence of build ...
Influence of build layout and orientation on microstructural characteristics of electron beam melted Alloy 718
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- Karimi Neghlani, Paria, 1986- (författare)
- Högskolan Väst,Avdelningen för avverkande och additativa tillverkningsprocesser (AAT),PTW,University West,Univ West, Sweden
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- Sadeghimeresht, Esmaeil, 1985- (författare)
- Högskolan Väst,Avdelningen för avverkande och additativa tillverkningsprocesser (AAT),PTW
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- Deng, Dunyong (författare)
- Linköpings universitet,Konstruktionsmaterial,Tekniska fakulteten,Linköping University, Division of Engineering Materials, Department of Management and Engineering, Linköping, 581 83, Sweden
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- Gruber, Hans, 1983 (författare)
- University of Chalmers, Division of Materials and Manufacture, Industrial and Materials Science, Gothenburg, 412 96, Sweden,Chalmers tekniska högskola,Chalmers University of Technology,Univ Chalmers, Sweden
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- Andersson, Joel, 1981- (författare)
- Högskolan Väst,Avdelningen för svetsteknologi (SV),PTW,University West,Univ West, Sweden
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- Nylen, Per, 1960- (författare)
- Högskolan Väst,Avdelningen för avverkande och additativa tillverkningsprocesser (AAT),PTW,University West,Univ West, Sweden
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- Sadeghi, E. (författare)
- Högskolan Väst,University West,Univ West, Sweden
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(creator_code:org_t)
- 2018-09-17
- 2018
- Engelska.
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Ingår i: The International Journal of Advanced Manufacturing Technology. - : Springer Science and Business Media LLC. - 0268-3768 .- 1433-3015. ; 99:S1, s. 2903-2913
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Abstract
Ämnesord
Stäng
- Effects of build layout and orientation consisting of (a) height from the build plate (Z-axis), (b) distance between samples, and (c) location in the build plate (X-Y plane) on porosity, NbC fraction, and hardness in electron beam melted (EBM) Alloy 718 were studied. The as-built samples predominantly showed columnar structure with strong Ë001Ë crystallographic orientation parallel to the build direction, as well as NbC and ÎŽ-phase in inter-dendrites and grain boundaries. These microstructural characteristics were correlated with the thermal history, specifically cooling rate, resulted from the build layout and orientation parameters. The hardness and NbC fraction of the samples increased around 6% and 116%, respectively, as the height increased from 2 to 45Â mm. Moreover, by increasing the height, formation of ÎŽ-phase was also enhanced associated with lower cooling rate in the samples built with a greater distance from the build plate. However, the porosity fraction was unaffected. Increasing the sample gap from 2 to 10Â mm did not change the NbC fraction and hardness; however, the porosity fraction increased by 94%. The sample location in the build chamber influenced the porosity fraction, particularly in interior and exterior areas of the build plate. The hardness and NbC fraction were not dependent on the sample location in the build chamber. © 2018, The Author(s).
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Bearbetnings-, yt- och fogningsteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Manufacturing, Surface and Joining Technology (hsv//eng)
- NATURVETENSKAP -- Kemi -- Analytisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Analytical Chemistry (hsv//eng)
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Geokemi (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Geochemistry (hsv//eng)
Nyckelord
- 3D printers
- Cooling
- Electron beam melting
- Electron beams
- Grain boundaries
- Hardness
- Location
- Niobium compounds
- Porosity
- Alloy 718
- Build direction
- Columnar structures
- Crystallographic orientations
- Micro-structural characteristics
- Micro-structural characterization
- Orientation parameter
- Sample location
- Porous plates
- Manufacturing and materials engineering
- Produktions- och materialteknik
- Production Technology
- Produktionsteknik
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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Karimi Neghlani, ...
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Sadeghimeresht, ...
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Deng, Dunyong
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Gruber, Hans, 19 ...
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Andersson, Joel, ...
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Nylen, Per, 1960 ...
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Sadeghi, E.
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- Om ämnet
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- TEKNIK OCH TEKNOLOGIER
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TEKNIK OCH TEKNO ...
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och Materialteknik
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och Bearbetnings yt ...
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- NATURVETENSKAP
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NATURVETENSKAP
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och Kemi
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och Analytisk kemi
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- NATURVETENSKAP
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NATURVETENSKAP
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och Geovetenskap och ...
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och Geokemi
- Artiklar i publikationen
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The Internationa ...
- Av lärosätet
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Högskolan Väst
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Chalmers tekniska högskola
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Linköpings universitet