Processing a biocompatible Ti-35Nb-7Zr-5Ta alloy by selective laser melting

Autor(es)

Batalha, Rodolfo Lisboa ^{[1, 2]} ; Batalha, Weverson Capute ^[1] ; Deng, Liang ^[2] ; Gustmann, Tobias ^[3] ; Pauly, Simon ^{[2, 4]} ; Kiminami, Claudio Shyinti ^{[5, 1]} ; Gargarella, Piter ^{[5, 1]}

Afiliação do(s) autor(es)

^[1] Univ Fed Sao Carlos, Grad Program Mat Sci & Engn, BR-13565905 Sao Carlos - Brazil

^[2] Leibniz Inst Solid State & Mat Res, Inst Complex Mat, D-01069 Dresden - Germany

^[3] Fraunhofer Inst Machine Tools & Forming Technol I, D-01187 Dresden - Germany

^[4] Univ Appl Sci Aschaffenburg, Fac Engn, D-63743 Wurzburger, Aschaffenburg - Germany

^[5] Univ Fed Sao Carlos, Dept Mat Engn, BR-13565905 Sao Carlos - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Journal of Materials Research; v. 35, n. 9, p. 1143-1153, MAY 14 2020.
• Citações Web of Science: 0

Resumo

The Ti-35Nb-7Zr-5Ta (TNZT) alloy is a promising alloy because of its biocompatibility, high specific strength, and low Young's modulus. This work aimed at investigating the viability to process the TNZT alloy by selective laser melting (SLM) and at optimizing the processing parameters to obtain densified bulk samples. The single-track approach was first used, and the optimized laser parameters were determined to produce bulk samples with a relative density of 99.0% when an energy input of 58.3 J/mm(3) was used. The effect of porosity on mechanical properties was studied, and the as-built SLM samples presented slightly lower compressive strength than samples produced by Cu-mould suction casting, as a result of a columnar grain structure in the SLMed samples. Prototypes were manufactured, proving the feasibility of manufacturing parts of the TNZT alloy with complex geometry by SLM. (AU)

• Processo FAPESP: 17/27031-4 - Influência de parâmetros de processo nas características metalúrgicas de peças fabricadas por manufatura aditiva
• Beneficiário: Piter Gargarella
• Modalidade de apoio: Auxílio à Pesquisa - Jovens Pesquisadores
• Processo FAPESP: 13/05987-8 - Processamento e caracterização de ligas metálicas amorfas, metaestáveis e nano-estruturadas
• Beneficiário: Claudio Shyinti Kiminami
• Modalidade de apoio: Auxílio à Pesquisa - Temático