PRODUÇÃO DE LIGAS DE MEMÓRIA DE FORMA DE Ni-Ti-Al COM ELEMENTO LIGANTE DE NIÓBIO - RESULTADOS PARCIAIS

Conceição, Isabella Carolina; Dias, Luiz Carlos Martins; Fernandes, Amanda Martins; Teixeira, Ricardo Luiz Perez; Filho, Francisco Moura; Hasegawa, Haroldo Lhow; Lacerda, José Carlos de

doi:10.18540/jcecvl3iss8pp1038-1050

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2020

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“…The increase of the niobium content lowers the martensiteaustenite transformation temperature [16]. Samples 2 and 3 were harder than Sample 1 (Sample 1: 302 ± 5 hv; Sample 2: 489 ± 32 hv; and Sample 3: 588 ± 54 hv).…”

Section: Resultsmentioning

confidence: 97%

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Archives of Metallurgy and Materials

Teixeira

Lacerda

Conceição

et al. 2020

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The effecTs of Niobium oN The bioacTiviTy of Ni-Ti-al-Nb shape memory alloys This work aims to analyze the effects of niobium on the bioactivity of a titanium, nickel, aluminum, and niobium alloy obtained by the Plasma Skull Push Pull process (PSPP). Titanium alloys, such as NiTinol (NiTi), are metallic biomaterials that have wide application in health and surgical prostheses. in this work the microstructural and bioactivity characteristics of the alloys are evaluated. The addition of aluminum improves alloy ductility and reduces its cost. The addition of niobium favors the hydroxyapatite nucleation. Therefore, the addition of the combination of the two elements contributes to lower cost and better alloy bioactivity.

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Section: Resultsmentioning

confidence: 97%

“…Plasma Skull Push Pull (PSPP) process casting was used [12][13]. Niobium addition still aims to stabilize the titanium alpha phase in NiTinol and improve hydroxyapatite nucleation [14][15][16].…”

Section: Introductionmentioning

confidence: 99%