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Deformation Behavior and Microstructure of Ti6Al4V Manufactured by SLM

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dc.contributor.author Krakhmalev, P.
dc.contributor.author Fredriksson, G.
dc.contributor.author Yadroitsava, I.
dc.contributor.author Kazantseva, N.
dc.contributor.author du Plessis, A.
dc.contributor.author Yadroitsev, I.
dc.date.accessioned 2017-11-23T11:16:07Z
dc.date.available 2017-11-23T11:16:07Z
dc.date.issued 2016
dc.identifier.uri http://hdl.handle.net/11462/1286
dc.description Published Article en_US
dc.description.abstract Mechanical properties, porosity, and microstructure of Ti6Al4V (ELI) material produced by Selective Laser Melting (SLM) under controlled oxygen content were analyzed. Fully martensitic α’structure with high dislocation density and stacking faults was observed in both as-built and stress relieved samples by means of XRD and TEM. Tensile {101 ̅2} twinning was identified by TEM and electron diffraction. Accommodation of thermal stresses during manufacturing was suggested as a possible reason for twinning. Computed tomography of pores was carried out. Pores in the specimens were evenly distributed and mostly had an elongated shape. Defect analysis by micro CT scans in pre-strained samples confirmed that the pore coalescence was the main crack formation mechanism in the final fracture with typical cup-and-cone fracture morphology. Additionally, typical dimples and quasi-cleavage were revealed. Mechanical properties of the samples after stress relieving heat treatment at 650°C for 3 h are complied with the international standard for Ti alloys for biomedical applications. en_US
dc.format.extent 1 479 426 bytes, 1 file
dc.format.mimetype Application/PDF
dc.language.iso en_US en_US
dc.publisher Elsevier B.V: Physics Procedia en_US
dc.subject Ti6Al4V en_US
dc.subject tensile test en_US
dc.subject mechanical properties en_US
dc.subject porosity en_US
dc.subject microstructure en_US
dc.subject twinning en_US
dc.title Deformation Behavior and Microstructure of Ti6Al4V Manufactured by SLM en_US
dc.type Article en_US

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