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Type: Artigo de periódico
Title: Effect of cooling rate on Ti-Cu eutectoid alloy microstructure
Author: Souza, SA
Afonso, CRM
Ferrandini, PL
Coelho, AA
Caram, R
Abstract: Titanium alloys present a combination of properties that makes them suitable materials for various medical applications, and there is special interest in Ti-Cu alloys for the fabrication of dental prostheses. The addition of Cu to Ti lowers the melting point of the alloy, as well as leading to the development of desirable mechanical properties. In this study a eutectoid alloy was prepared and heat treated, then cooled at various cooling rates. The eutectoid structure (alpha + Ti(2)Cu) was observed for all cooling rates used, and evidence of alpha' martensite was found for cooling rate higher than 9 degrees C s(-1). Lower cooling rates resulted in higher modulus values. This was attributed to the volume fraction of the alpha and Ti(2)Cu phases. Higher cooling rates produced structures with lower modulus values and greater hardness, a result attributed mainly to the development of a martensitic structure. (C) 2008 Elsevier B.V. All rights reserved.
Subject: Dental implants
Ti-Cu alloy
Young's modulus
Country: Holanda
Editor: Elsevier Science Bv
Citation: Materials Science & Engineering C-biomimetic And Supramolecular Systems. Elsevier Science Bv, v. 29, n. 3, n. 1023, n. 1028, 2009.
Rights: fechado
Identifier DOI: 10.1016/j.msec.2008.09.007
Date Issue: 2009
Appears in Collections:Unicamp - Artigos e Outros Documentos

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