Eklemeli İmalat ve Geleneksel İmalat Yöntemi ile Üretilen CoCr Alaşımı Yüzeylerde Hidroksiapatit (HAp) Kaplamanın Karşılaştırılması

Year 2022, , 39 - 49, 25.04.2022

Gözde Erener , İbrahim Gezer , Erkan Bahçe

https://doi.org/10.53433/yyufbed.1056997

Abstract

Eklemeli imalat teknolojisi geleneksel imalat yöntemlerine kıyasla sağladığı avantajlar sayesinde son yıllarda medikal alanda yaygın olarak kullanılmaktadır. Eklemeli imalat teknolojisi ile implant yapımında üstün biyouyumluluk ve mekanik özelliklere sahip olan CoCr alaşımları tercih edilmektedir. Ancak implantasyondan sonra implant ve doku arasındaki uyum süresi oldukça uzundur. Bu sorunu gidermek için implant yüzeyinin geliştirilmesi amaçlanmıştır. Bu çalışmada bir eklemeli imalat yöntemi olan seçici lazer ergitme (SLM-Selective laser melting) ve geleneksel imalat yöntemi olan (Döküm) ile üretilen CoCr alaşımları üzerine yüzey özelliklerinin geliştirilmesi amacıyla HAp kaplamalar yapılmıştır. Numunelerin üretim yönteminin ve farklı konsantrasyonlarda HAp (%1, %3, %5, %7, %9) ile hazırlanan çözeltilerin kaplama morfolojisine etkisi SEM analizi yapılarak incelenmiştir. Ayrıca HAp partiküllerinin varlığı, EDS ve XRD analizleri ile desteklenmiştir. Deney sonuçları eklemeli imalat ile üretilen numunelerde geleneksel imalat ile üretilenlere kıyasla daha yüksek kalitede kaplama yapısı oluştuğunu göstermiştir.

Keywords

Eklemeli imalat, SLM, CoCr, HAp kaplama

Comparison of Hydroxyapatite (HAp) Coating on CoCr Alloy Surfaces Produced by Additive Manufacturing and Conventional Manufacturing Method

Abstract

Additive manufacturing technology has been widely used in the medical field in recent years, thanks to the advantages it provides compared to traditional manufacturing methods. CoCr alloys, which have superior biocompatibility and mechanical properties, are preferred in implant construction with additive manufacturing technology. However, after implantation, the adaptation period between the implant and the tissue is quite long. To overcome this problem, it is aimed to improve the implant surface. In this study, HAp coatings were made on CoCr alloys produced by selective laser melting (SLM-Selective laser melting), which is an additive manufacturing method, and CoCr alloys, which are produced with a traditional manufacturing method (Casting). The effects of the production method of the samples and the solutions prepared with different concentrations of HAp (1%, 3%, 5%, 7%, 9%) on the coating morphology were investigated by SEM analysis. In addition, the presence of HAp particles was supported by EDS and XRD analyzes. The test results showed that higher quality coating structure was formed in the samples produced by additive manufacturing compared to those produced by conventional manufacturing.

Keywords

Additive manufacturing, SLM, CoCr, HAp coating

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