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High Temperature Me...
High Temperature Mechanical Integrity of Selective Laser Melted Alloy 718 Evaluated by Slow Strain Rate Tests
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- Deng, Dunyong, 1989- (författare)
- Linköpings universitet,Konstruktionsmaterial,Tekniska fakulteten
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- Peng, Ru Lin, 1960- (författare)
- Linköpings universitet,Konstruktionsmaterial,Tekniska fakulteten
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- Moverare, Johan, 1973- (författare)
- Linköpings universitet,Konstruktionsmaterial,Tekniska fakulteten
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(creator_code:org_t)
- Elsevier, 2021
- 2021
- Engelska.
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Ingår i: International journal of plasticity. - : Elsevier. - 0749-6419 .- 1879-2154. ; 140
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Abstract
Ämnesord
Stäng
- Strain rate dependent deformation behaviours of selective laser melted Alloy 718 (IN718) are systematically studied at 550 and 650 °C by slow strain rate testing, with a forged counterpart as a reference. Selective laser melted IN718 shows significant susceptibility to intergranular cavitation, resulting in ductility degradation with decreasing strain rate. Detailed fractography and cross section inspections are employed to identify the damage mechanisms. Creep rates are also estimated and compared with the conventional counterparts. The possible critical factors for the inferiority of time dependent damage resistance of selective laser melted IN718 are discussed.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Materialteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering (hsv//eng)
Nyckelord
- IN718; Selective laser melting (SLM); Creep; Environment-assisted grain boundary embrittlement; Slow strain rate test; Cavitation; Surface energy
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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