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dc.contributor.authorKučerová, Ludmila
dc.contributor.authorJeníček, Štepán
dc.contributor.authorZetková, Ivana
dc.contributor.editorKučerová, Ludmila
dc.contributor.editorJirková, Hana
dc.contributor.editorJeníček, Štěpán
dc.date.accessioned2019-10-08T09:43:48Z-
dc.date.available2019-10-08T09:43:48Z-
dc.date.issued2019
dc.identifier.citationJIRKOVÁ, Hana ed.; JENÍČEK, Štepán ed. Proceedings PING 2019: modern trends in material engineering: 10.-13.09.2019, Pilsen. 1. vyd. Plzeň: University of West Bohemia, 2019, s. 10. ISBN 978-80-261-0879-5.en
dc.identifier.isbn978-80-261-0879-5
dc.identifier.urihttp://hdl.handle.net/11025/35205
dc.description.sponsorshipPING 2019 is organized with the support of funds for specific university research project SVK1-2019-002.en
dc.format1 s.cs
dc.format.mimetypeapplication/PDF
dc.language.isoenen
dc.publisherUniversity of West Bohemiaen
dc.rights© University of West Bohemiaen
dc.subjectselektivní laserové tavenícs
dc.subjectvysokopevnostní ocelcs
dc.subjecthybridní kloubycs
dc.titleAdditive manufacturing of maraging steel on low alloyed high strength TRIP steelen
dc.typekonferenční příspěvekcs
dc.typeconferenceObjecten
dc.rights.accessopenAccessen
dc.type.versionpublishedVersionen
dc.description.abstract-translatedHybrid parts were successfully produced by additive manufacturing of maraging steel 18Ni 300 grade on the top of low alloyed advanced high strength steel. High strength steel was alloyed by 0.2% C, 1.5% Al, 0.5% Si, 1.5% Mn and micro alloyed by 0.06% Nb (all in weight %). The steel was prepared in the form of bars either directly in asforged and air cooled state or after two step heat treatment typical for TRIP (transformation induced plasticity) steels. Subsequent additive manufacturing of maraging steel was carried out by selective laser melting (SLM) in the EOS M290 machine using parameters recommended for tool steels by printer supplier. Suitable post processing heat treatments were applied to hybrid parts to relive residual stresses and to achieve desired mechanical properties. Hybrid parts were subjected either to solution annealing or to two step heat treatment with the second hold in the temperature region of bainitic transformation. The best combination of ultimate tensile strength of 860 MPa and total elongation of 19% was obtained for hybrid part where high strength steel underwent two step steel heat treatment prior to additive manufacturing and no post-processing was carried out after additive manufacturing. The joints were characterised by light and scanning electron microscopy, hardness measurement across the interface and tensile test of the joint area. Detail characterisation of interface area microstructure and local chemical composition was carried out.en
dc.subject.translatedselective laser meltingen
dc.subject.translatedmaraging steelen
dc.subject.translatedhybrid jointsen
dc.type.statusPeer-revieweden
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Proceedings PING 2019: modern trends in material engineering

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