1. Repositório Institucional da UFMG
2. Publicações Científicas e Culturais
3. Artigo de Periódico

Type:	Artigo de Periódico
Title:	Surface Characterization of NiTi Superelastic and Shape Memory Alloys After Electrolytic Polishing
Authors:	Natália Isabel de Azevedo Lopes Laís Ávila de Oliveira Silva Leandro de Arruda Santos Vicente Tadeu Lopes Buono
Abstract:	For the biomedical application of NiTi alloys, an excellent surface finishing process is required to guarantee high corrosion resistance and biocompatibility, eliminating the allergenic and toxic effects associated with the release of nickel ions in the body. Electropolishing is a process that can reduce surface imperfections and form a thin protective layer of TiO2, even in complex-shaped devices. The main objective of our study was to find and report suitable parameters for electrolytic polishing of NiTi wires, in both the superelastic and shape memory states. The results indicate that electropolishing in a 3.5 mol•L-1 methanolic H2SO4 electrolyte at 20ºC can effectively reduce surface roughness, remove superficial nickel-rich layers and improve corrosion resistance for austenitic and martensitic NiTi alloys.
Subject:	Elasticidade Efeito da memória de forma Solução eletrolítica Biomassa
language:	eng
metadata.dc.publisher.country:	Brasil
Publisher:	Universidade Federal de Minas Gerais
Publisher Initials:	UFMG
metadata.dc.publisher.department:	ENG - DEPARTAMENTO DE ENGENHARIA METALÚRGICA ENGENHARIA - ESCOLA DE ENGENHARIA
Rights:	Acesso Aberto
metadata.dc.identifier.doi:	https://doi.org/10.1590/1980-5373-MR-2016-0933
URI:	http://hdl.handle.net/1843/57068
Issue Date:	2017
metadata.dc.url.externa:	https://www.scielo.br/j/mr/a/FkPQpcmXTg5vGVtDF5rVX7F/?lang=en
metadata.dc.relation.ispartof:	Materials Research
Appears in Collections:	Artigo de Periódico

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.