Effect of Thermal Oxidation and Carbon Concentrations on Co-Cr-Mo Alloy in Enhanced Corrosion Protection

Surface modification of metallic implants is often required to facilitate positive interaction between the implant and the surrounding hard tissue. In the present study, an oxide layer (Cr2O3) was successfully created on a Co-Cr-Mo alloys substrate by using thermal oxidation technique in atmospheric...

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Main Authors:	Mas Ayu, Hassan, R., Daud, A., Shah, H. M., Hazwan, Siti Haryani, Tomadi, Salwani, Mohd Salleh
Format:	Article
Language:	English
Published:	Trans Tech Publications 2018
Subjects:	TJ Mechanical engineering and machinery
Online Access:	http://umpir.ump.edu.my/id/eprint/24066/ http://umpir.ump.edu.my/id/eprint/24066/ http://umpir.ump.edu.my/id/eprint/24066/ http://umpir.ump.edu.my/id/eprint/24066/7/Effect%20of%20Thermal%20Oxidation%20and%20Carbon%20Concentrations.pdf

id	ump-24066
recordtype	eprints
spelling	ump-240662019-02-12T08:55:03Z http://umpir.ump.edu.my/id/eprint/24066/ Effect of Thermal Oxidation and Carbon Concentrations on Co-Cr-Mo Alloy in Enhanced Corrosion Protection Mas Ayu, Hassan R., Daud A., Shah H. M., Hazwan Siti Haryani, Tomadi Salwani, Mohd Salleh TJ Mechanical engineering and machinery Surface modification of metallic implants is often required to facilitate positive interaction between the implant and the surrounding hard tissue. In the present study, an oxide layer (Cr2O3) was successfully created on a Co-Cr-Mo alloys substrate by using thermal oxidation technique in atmospheric condition. The effect of different carbon content (0.03% and 0.24%) of oxidized Co-Cr-Mo alloys was investigated in terms of its corrosion behavior using electrochemical impedance spectroscopy techniques that immersed in simulated body fluid. The corrosion tests were repeated for five times for each of sample condition. The results demonstrated that thermal oxidation and carbon content have correlation in influencing the corrosion performance in Co-Cr-Mo alloys. Ahigh carbon content sample generates a lower corrosion-rate compared to low carbon content sample even though all samples were treated at similar oxidation temperature and time duration. Observation also showed that less diffusion of cobalt released in high carbon sample which is believed has effects in creating the uniformity and dense oxide layer without any presence of microcracks and delamination. This phenomenon can be concluded that carbon content in Co-Cr-Mo alloy have influenced in controlling the reaction of metal elements during thermal oxidation which is beneficial in formation of oxide layer. The uniformity and compact oxide layer substantially have enhanced the corrosion resistance of high carbon Co-Cr-Mo alloy. Trans Tech Publications 2018-03-15 Article PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/24066/7/Effect%20of%20Thermal%20Oxidation%20and%20Carbon%20Concentrations.pdf Mas Ayu, Hassan and R., Daud and A., Shah and H. M., Hazwan and Siti Haryani, Tomadi and Salwani, Mohd Salleh (2018) Effect of Thermal Oxidation and Carbon Concentrations on Co-Cr-Mo Alloy in Enhanced Corrosion Protection. Materials Science Forum, 916. pp. 170-176. ISSN 0255-5476 https://doi.org/10.4028/www.scientific.net/MSF.916.170 https://doi.org/10.4028/www.scientific.net/MSF.916.170
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English
topic	TJ Mechanical engineering and machinery
spellingShingle	TJ Mechanical engineering and machinery Mas Ayu, Hassan R., Daud A., Shah H. M., Hazwan Siti Haryani, Tomadi Salwani, Mohd Salleh Effect of Thermal Oxidation and Carbon Concentrations on Co-Cr-Mo Alloy in Enhanced Corrosion Protection
description	Surface modification of metallic implants is often required to facilitate positive interaction between the implant and the surrounding hard tissue. In the present study, an oxide layer (Cr2O3) was successfully created on a Co-Cr-Mo alloys substrate by using thermal oxidation technique in atmospheric condition. The effect of different carbon content (0.03% and 0.24%) of oxidized Co-Cr-Mo alloys was investigated in terms of its corrosion behavior using electrochemical impedance spectroscopy techniques that immersed in simulated body fluid. The corrosion tests were repeated for five times for each of sample condition. The results demonstrated that thermal oxidation and carbon content have correlation in influencing the corrosion performance in Co-Cr-Mo alloys. Ahigh carbon content sample generates a lower corrosion-rate compared to low carbon content sample even though all samples were treated at similar oxidation temperature and time duration. Observation also showed that less diffusion of cobalt released in high carbon sample which is believed has effects in creating the uniformity and dense oxide layer without any presence of microcracks and delamination. This phenomenon can be concluded that carbon content in Co-Cr-Mo alloy have influenced in controlling the reaction of metal elements during thermal oxidation which is beneficial in formation of oxide layer. The uniformity and compact oxide layer substantially have enhanced the corrosion resistance of high carbon Co-Cr-Mo alloy.
format	Article
author	Mas Ayu, Hassan R., Daud A., Shah H. M., Hazwan Siti Haryani, Tomadi Salwani, Mohd Salleh
author_facet	Mas Ayu, Hassan R., Daud A., Shah H. M., Hazwan Siti Haryani, Tomadi Salwani, Mohd Salleh
author_sort	Mas Ayu, Hassan
title	Effect of Thermal Oxidation and Carbon Concentrations on Co-Cr-Mo Alloy in Enhanced Corrosion Protection
title_short	Effect of Thermal Oxidation and Carbon Concentrations on Co-Cr-Mo Alloy in Enhanced Corrosion Protection
title_full	Effect of Thermal Oxidation and Carbon Concentrations on Co-Cr-Mo Alloy in Enhanced Corrosion Protection
title_fullStr	Effect of Thermal Oxidation and Carbon Concentrations on Co-Cr-Mo Alloy in Enhanced Corrosion Protection
title_full_unstemmed	Effect of Thermal Oxidation and Carbon Concentrations on Co-Cr-Mo Alloy in Enhanced Corrosion Protection
title_sort	effect of thermal oxidation and carbon concentrations on co-cr-mo alloy in enhanced corrosion protection
publisher	Trans Tech Publications
publishDate	2018
url	http://umpir.ump.edu.my/id/eprint/24066/ http://umpir.ump.edu.my/id/eprint/24066/ http://umpir.ump.edu.my/id/eprint/24066/ http://umpir.ump.edu.my/id/eprint/24066/7/Effect%20of%20Thermal%20Oxidation%20and%20Carbon%20Concentrations.pdf
first_indexed	2023-09-18T22:36:15Z
last_indexed	2023-09-18T22:36:15Z
_version_	1777416615166476288

Effect of Thermal Oxidation and Carbon Concentrations on Co-Cr-Mo Alloy in Enhanced Corrosion Protection

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