Investigation of Corrosion and Bioactivity Behavior of 316L/HA Composites in Different Physiological Fluids

Özlem Canpolat; Aykut Çanakçı

Makale detayları

Investigation of Corrosion and Bioactivity Behavior of 316L/HA Composites in Different Physiological Fluids

Yazarlar:

Özlem Canpolat | Aykut Çanakçı

Yayıncı:

Gazi University

Ana Başlıklar:

Biyomedikal Mühendisliğinde Biyomateryaller | Malzeme Tasarım ve Davranışları

Dergi:

Politeknik Dergisi Vol.27 Issue 5, pp.1913-1921

Belge Tipi:

Makale

Yayın Tarihi:

2/2024

Belge Dili:

Türkçe

Document ID (Org No.):

2001331578

pISSN:

2147-9429

Anahtar kelimeler:

Özet:

 In this study, SS316LHA composites were produced by powder metallurgy method for biomedical applications; density, microstructure, hardness, corrosion resistance and bioactivity properties were investigated. 3, 5 and 7 by weight of hydroxyapatite HA were added to the 316L matrix. With the increase of HA ratio, density and hardness decreased, while porosity increased. In XRD analysis, in addition to 316L and HA peaks, CaCr2O4 phase peaks were also observed. Corrosion tests were carried out in Ringer and Hanks physiological fluids, and the corrosion rate of the sample with 5 reinforcement was the lowest among composites. Bioactivity tests were carried out in simulated body fluid SBF for 7 and 14 days, and at the end of both periods, apatite layer consisting of spherical crystallites was observed on the sample surfaces.

 In this study, SS316LHA composites were produced by powder metallurgy method for biomedical applications; density, microstructure, hardness, corrosion resistance and bioactivity properties were investigated. 3, 5 and 7 by weight of hydroxyapatite HA were added to the 316L matrix. With the increase of HA ratio, density and hardness decreased, while porosity increased. In XRD analysis, in addition to 316L and HA peaks, CaCr2O4 phase peaks were also observed. Corrosion tests were carried out in Ringer and Hanks physiological fluids, and the corrosion rate of the sample with 5 reinforcement was the lowest among composites. Bioactivity tests were carried out in simulated body fluid SBF for 7 and 14 days, and at the end of both periods, apatite layer consisting of spherical crystallites was observed on the sample surfaces.

 In this study, SS316LHA composites were produced by powder metallurgy method for biomedical applications; density, microstructure, hardness, corrosion resistance and bioactivity properties were investigated. 3, 5 and 7 by weight of hydroxyapatite HA were added to the 316L matrix. With the increase of HA ratio, density and hardness decreased, while porosity increased. In XRD analysis, in addition to 316L and HA peaks, CaCr2O4 phase peaks were also observed. Corrosion tests were carried out in Ringer and Hanks physiological fluids, and the corrosion rate of the sample with 5 reinforcement was the lowest among composites. Bioactivity tests were carried out in simulated body fluid SBF for 7 and 14 days, and at the end of both periods, apatite layer consisting of spherical crystallites was observed on the sample surfaces.

 Bu çalışmada, biyomedikal uygulamalar için toz metalurjisi yöntemi ile SS316LHA kompozitleri üretilmiş; yoğunluğu, mikroyapısı, sertliği, korozyon direnci ve biyoaktivite özellikleri incelenmiştir. 316L matrisine ağırlıkça 3, 5 ve 7 oranında hidroksiapatit HA takviye edilmiştir. HA oranının artışı ile birlikte yoğunluk ve sertlik azalmış, porozite ise artmıştır. XRD analizlerinde 316L ve HA piklerinin yanı sıra CaCr2O4 fazının pikleri de görülmüştür. Korozyon deneyleri Ringer ve Hanks fizyolojik sıvılarında gerçekleştirilerek kompozitler içinde 5 takviyeli olan numunenin korozyon hızı en düşük çıkmıştır. Biyoaktivite testleri simüle edilmiş vücut sıvısında SBF 7 ve 14 gün bekletilerek gerçekleştirilmiş ve her iki sürenin sonunda numune yüzeylerinde küresel kristalitlerden oluşan apatit tabakası gözlenmiştir.

Makale detayları

Investigation of Corrosion and Bioactivity Behavior of 316L/HA Composites in Different Physiological Fluids

Yazarlar:

Özlem Canpolat | Aykut Çanakçı

Yayıncı:

Gazi University

Ana Başlıklar:

Biyomedikal Mühendisliğinde Biyomateryaller | Malzeme Tasarım ve Davranışları

Dergi:

Politeknik Dergisi Vol.27 Issue 5, pp.1913-1921

Belge Tipi:

Makale

Yayın Tarihi:

2/2024

Belge Dili:

Türkçe

Document ID (Org No.):

2001331578

pISSN:

2147-9429

316L

Hydroxyapatite

Powder metallurgy

Biomaterial316L

Hidroksiapatit

Toz metalurjisi

Biyomalzeme

Sayı

Makale detayları

Yazarlar: Özlem Canpolat | Aykut Çanakçı

Yayıncı: Gazi University

Ana Başlıklar: Biyomedikal Mühendisliğinde Biyomateryaller | Malzeme Tasarım ve Davranışları

Dergi: Politeknik Dergisi Vol.27 Issue 5, pp.1913-1921

Belge Tipi: Makale

Yayın Tarihi: 2/2024

Belge Dili: Türkçe

Document ID (Org No.): 2001331578

pISSN: 2147-9429

Sayı

Yazarlar:

Özlem Canpolat | Aykut Çanakçı

Yayıncı:

Gazi University

Ana Başlıklar:

Biyomedikal Mühendisliğinde Biyomateryaller | Malzeme Tasarım ve Davranışları

Dergi:

Politeknik Dergisi Vol.27 Issue 5, pp.1913-1921

Belge Tipi:

Makale

Yayın Tarihi:

2/2024

Belge Dili:

Türkçe

Document ID (Org No.):

2001331578

pISSN:

2147-9429