Biyomedikal Uygulamalar İçin Titanyum Esaslı Gözenekli TiNb Alaşımının Üretimi

Year 2018, Volume: 7 Issue: 1, 49 - 59, 30.06.2018

Mehmet Kaya , Abdurrahman Yolun , Ömer Çakmak Fahrettin Yakuphanoğlu Ebru Elibol Mustafa Köm , Mehmet Güvenç

https://doi.org/10.17100/nevbiltek.417354

Cited By: 1

Abstract

Titanyum esaslı alaşımların biyomalzeme olarak kullanımını
yaygınlaştırmak için son yıllarda gözenekli implant malzeme olarak üretimi ve
uygulanması üzerine yoğun çalışmalar yapılmaktadır. Ti-esaslı alaşımlar yüksek
korozyon direnci, düşük elastik modülü ve üstün biyouyumluluğu nedeniyle
medikal uygulamalarda yaygın olarak kullanılmaktadır. Bu tür alaşımlar
özellikle sert doku implantları olarak tercih edilmektedirler. Alaşım gözenekli
malzeme olarak üretildiği zaman vücut içerisinde canlı dokunun ilerlemesine,
kan ve besin taşınmasına imkan sağlayacağı ve kemik ile iyi bir bağ
oluşturacağı bir gerçektir. Bu nedenle bu çalışmada, yüksek saflıkta element
tozları kullanılarak titanyum esaslı TiNb alaşımı üretildi. Üretilen
numunelerin mikroyapılarında, başlıca α fazına ilaveten β ve α" fazların
da varlığı tespit edildi. Soğuk presleme basıncının artmasıyla gözenek oranının
azaldığı, basma dayanımlarının arttığı görüldü. Üretilen numuneler mikroyapıları
ve basma dayanımları açısından ideal bir implant malzemesi olarak kullanılabileceği
anlaşıldı.

Keywords

TiNb, Toz metalurjisi

Production of Titanium Based Porous TiNb Alloy for Biomedical Applications

Abstract

In recent years,
intensive studies have been carried out on the production and application of
titanium-based alloys as porous implant materials in order to promote the use
of titanium-based alloys as biomolecules. Ti-based alloys are widely used in
medical applications due to their high corrosion resistance, low elastic
modulus and superior biocompatibility. Such alloys are especially preferred as
hard tissue implants. When the alloy is produced as a porous material it is
essential that it will allow the passage of live tissue through the body,
allowing blood and nutrient transport, and a good bond with the bone. For this
reason, pure titanium and titanium-based Ti-10Nb alloy was produced in this
work using high purity elemental powders. After the production, the pure
titanium structure consisted entirely of α phase, while in the structure of the
Ti-10Nb alloy, β and α" phases were detected in addition to α phase. It
was determined that the porosity ratio of Ti-10Nb alloy is higher than that of
pure titanium specimen and the elastic modulus is closer to bone structure. It
was understood that Ti-10Nb specimen produced would be more suitable as an
ideal implant material in terms of microstructure and compressive strength.

Keywords

TiNb, Powder metallurgy

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