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perpendicular (horizontal), and bimetallic specimens in which the interface between the AISI 1045 substrate and the 18Ni300 steel was tested. The yield strength of the produced samples was 987.9\u00b134.2, 925.9\u00b189.7 and 486.7\u00b147.2\u00a0MPa for the vertical, horizontal and bimetallic specimens, respectively, while the elongation to failure was 9.4\u00b11.9, 18.3\u00b12.3 and 14.06\u00b10.6% in the same order. The latter specimen failed within the substrate-comprised portion of the specimen. Additionally, the fracture surfaces were analysed through scanning electron microscopy, concluding that while both surfaces consist of dimples, the horizontal specimen presented microporosities with a reduced diameter. A microhardness analysis in the printed wall-like structure following the printing direction yielded an average hardness of 392\u00b121 HV0.3, with fluctuations along the build direction mostly within one standard deviation.<\/jats:p>","DOI":"10.3390\/app122110829","type":"journal-article","created":{"date-parts":[[2022,10,25]],"date-time":"2022-10-25T12:29:45Z","timestamp":1666700985000},"page":"10829","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":8,"title":["Tensile Properties of As-Built 18Ni300 Maraging Steel Produced by DED"],"prefix":"10.3390","volume":"12","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-5225-8084","authenticated-orcid":false,"given":"Jorge","family":"Gil","sequence":"first","affiliation":[{"name":"Faculdade de Engenharia, Universidade do Porto, s\/n, R. Dr. Roberto Frias, 4200-465 Porto, Portugal"},{"name":"LAETA\/INEGI: Instituto de Ci\u00eancia e Inova\u00e7\u00e3o em Engenharia Mec\u00e2nica e Engenharia Industrial, Campus da FEUP, R. Dr. Roberto Frias 400, 4200-465 Porto, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0284-0113","authenticated-orcid":false,"given":"Ricardo","family":"Seca","sequence":"additional","affiliation":[{"name":"Faculdade de Engenharia, Universidade do Porto, s\/n, R. Dr. Roberto Frias, 4200-465 Porto, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5282-906X","authenticated-orcid":false,"given":"Rui","family":"Amaral","sequence":"additional","affiliation":[{"name":"Faculdade de Engenharia, Universidade do Porto, s\/n, R. Dr. Roberto Frias, 4200-465 Porto, Portugal"},{"name":"LAETA\/INEGI: Instituto de Ci\u00eancia e Inova\u00e7\u00e3o em Engenharia Mec\u00e2nica e Engenharia Industrial, Campus da FEUP, R. Dr. Roberto Frias 400, 4200-465 Porto, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6722-1866","authenticated-orcid":false,"given":"Omid","family":"Emadinia","sequence":"additional","affiliation":[{"name":"LAETA\/INEGI: Instituto de Ci\u00eancia e Inova\u00e7\u00e3o em Engenharia Mec\u00e2nica e Engenharia Industrial, Campus da FEUP, R. Dr. Roberto Frias 400, 4200-465 Porto, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1059-715X","authenticated-orcid":false,"given":"Ab\u00edlio","family":"De Jesus","sequence":"additional","affiliation":[{"name":"Faculdade de Engenharia, Universidade do Porto, s\/n, R. Dr. Roberto Frias, 4200-465 Porto, Portugal"},{"name":"LAETA\/INEGI: Instituto de Ci\u00eancia e Inova\u00e7\u00e3o em Engenharia Mec\u00e2nica e Engenharia Industrial, Campus da FEUP, R. 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