نتایج جستجو برای: biodegradable alloy corrosion hydroxyapatite sputtering

تعداد نتایج: 108831  

2017
Till Jurgeleit Eckhard Quandt Christiane Zamponi

Biodegradable metals are a topic of great interest and Fe-based materials are prominent examples. The research task is to find a suitable compromise between mechanical, corrosion, and magnetic properties. For this purpose, investigations regarding alternative fabrication processes are important. In the present study, magnetron sputtering technology in combination with UV-lithography was used in...

2016
Shahab Ahmadi Iman Mohammadi S. K. Sadrnezhaad

Article history: Received 17 July 2015 Revised 18 December 2015 Accepted in revised form 19 December 2015 Available online 21 December 2015 The main challenges of biological implants are suitable strength, adhesion, biocompatibility and corrosion resistance. This paper discusses fabrication, characterization and electrochemical investigation of anodized Ti6Al4V without and with a hydroxyapatite...

1998
P. Ganesan C. M. Renteria J. R. Crum

INCONEL@ alloy 625 is a nickel-chromium-molybdenum alloy that is used for its high strength, excellent fabricability and weldability, and outstanding corrosion resistance. The outstanding and versatile corrosion resistance of INCONEL alloy 625 under a wide range of temperatures and corrosive environments is the primary reason for its wide acceptance in chemical processing and other applications...

2015
N. Ebrahimi

The roles of the alloying elements Mo, Cr, and W in resisting crevice corrosion of UNS N06022, UNS N06625, and UNS N10362 have been studied under galvanostatic conditions in 5 mol/L NaCl at 150°C. Corrosion damage patterns were investigated using surface analytical techniques such as scanning electron microscopy and optical imaging, and the corrosion products characterized by energy dispersive ...

Journal: :Coatings 2023

Degradable and non-degradable biomaterials are two categories that can be used to classify the existing biomaterials, being a solution for eliminating second surgical intervention of implant when tissue has properly recovered. In present paper, effect deposition temperature on structure, morphology, hardness, electrochemical evaluation, degradation properties functional peptides adhesion Mg Si-...

Journal: :Acta biomaterialia 2013
Xiao Liu Zhilian Yue Tony Romeo Jan Weber Torsten Scheuermann Simon Moulton Gordon Wallace

Biodegradable magnesium alloys are advantageous in various implant applications, as they reduce the risks associated with permanent metallic implants. However, a rapid corrosion rate is usually a hindrance in biomedical applications. Here we report a facile two step procedure to introduce multifunctional, anti-corrosive coatings on Mg alloys, such as AZ31. The first step involves treating the N...

2015
Bo Sun Tianyuan Ye Qiang Feng Jinghua Yao Mumeng Wei

This paper studies the corrosion behavior of B10 copper-nickel alloy in marine environment. Accelerated degradation test under marine environmental conditions was designed and performed based on the accelerated testing principle and the corrosion degradation mechanism. With the prolongation of marine corrosion time, the thickness of Cu₂O film increased gradually. Its corrosion product was Cu₂(O...

2016
Rong-Chang Zeng Wei-Chen Qi Fen Zhang Shuo-Qi Li

In vivo degradation predication faces a huge challenge via in vitro corrosion test due to the difficulty for mimicking the complicated microenvironment with various influencing factors. A thin electrolyte layer (TEL) cell for in vitro corrosion of pure magnesium and AZ91 alloy was presented to stimulate the in vivo corrosion in the micro-environment built by the interface of the implant and its...

2014
A. Hossain M. A. Gafur F. Gulshan A. S. W. Kurny

Al-Si-Mg-Ni(-Cu) alloys are widely used in the automotive industry. They have the advantage of low weight associated with low coefficient of thermal expansion and excellent mechanical properties – mainly at high temperatures. The corrosion resistance of these alloys in coastal area, particularly sea water, however is not yet known. In this investigation, electrochemical impedance spectroscopy (...

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