TY - JOUR

T1 - Bulk nanostructured metals for advanced medical implants and devices

AU - Valiev, Ruslan Z.

AU - Parfenov, Evgeny V.

AU - Raab, Georgy I.

AU - Semenova, Irina P.

AU - Dluhoš, Ludek

N1 - Funding Information: The authors gratefully acknowledge the financial support through the RFBR project 16-02-00094 (RZV) and from Saint Petersburg State University in the framework of Call 3 project (id 26130576) (RZV). Publisher Copyright: © Published under licence by IOP Publishing Ltd. Copyright: Copyright 2019 Elsevier B.V., All rights reserved.

PY - 2018/12/10

Y1 - 2018/12/10

N2 - Nanostructured metals (Ti and Ti alloys, stainless steels, Mg alloys) with enhanced static and fatigue strengths are promising materials for medical implants [1]. The use of severe plastic deformation (SPD) methods leads to significant strengthening of the metallic materials due to their nanostructuring when the formation of ultrafine grains is combined with the formation of nanostructural featuresnano-phased precipitations, grain boundary segregations, nano-twins, etc. [2]. In the present article the recent developments from author and his colleagues on continuous SPD processing, i.e. equal channel angular pressing (ECAP)- Conform techniques, for producing nanostructured CP titanium are considered. The use of nanoTi rods with enhanced strength and fatigue life has enabled the fabrication of implants with improved design for dentistry and orthopedics. Furthermore, surface modification of nanoTi through chemical etching and bioactive coatings allows for considerable improvement of its biomedical properties. As a result of conducted studies, miniaturized dental implants and nanoTi plates with reduced thickness and enhanced osseointegration were manufactured and successfully tested in clinical trials.

AB - Nanostructured metals (Ti and Ti alloys, stainless steels, Mg alloys) with enhanced static and fatigue strengths are promising materials for medical implants [1]. The use of severe plastic deformation (SPD) methods leads to significant strengthening of the metallic materials due to their nanostructuring when the formation of ultrafine grains is combined with the formation of nanostructural featuresnano-phased precipitations, grain boundary segregations, nano-twins, etc. [2]. In the present article the recent developments from author and his colleagues on continuous SPD processing, i.e. equal channel angular pressing (ECAP)- Conform techniques, for producing nanostructured CP titanium are considered. The use of nanoTi rods with enhanced strength and fatigue life has enabled the fabrication of implants with improved design for dentistry and orthopedics. Furthermore, surface modification of nanoTi through chemical etching and bioactive coatings allows for considerable improvement of its biomedical properties. As a result of conducted studies, miniaturized dental implants and nanoTi plates with reduced thickness and enhanced osseointegration were manufactured and successfully tested in clinical trials.

UR - http://www.scopus.com/inward/record.url?scp=85059406503&partnerID=8YFLogxK

U2 - 10.1088/1757-899X/461/1/012089

DO - 10.1088/1757-899X/461/1/012089

M3 - Conference article

AN - SCOPUS:85059406503

VL - 461

JO - IOP Conference Series: Materials Science and Engineering

JF - IOP Conference Series: Materials Science and Engineering

SN - 1757-8981

IS - 1

M1 - 012089

T2 - 5th International Conference Recent Trends in Structural Materials, COMAT 2018

Y2 - 14 November 2018 through 16 November 2018

ER -