Indian Journal of Engineering & Materials Sciences

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Corrosion behavior of boride diffusion layer on CoCrMo alloy surface


Affiliations
1 Mechanical Engineering and Management, COARA, Autonomous University of San Luis Potosi, San Luis Potosí, SLP 78 000, Mexico
2 Metallurgic Engineering, Campus Guanajuato, Division of Engineering (DI), University of Guanajuato, Guanajuato, Guanajuato, 36 020, Mexico
3 Agricultural Mechanical Engineering, Campus Irapuato-Salamanca, Life Sciences Division (DICIVA), University of Guanajuato, Irapuato, Guanajuato 36 500, Mexico
4 Chemical Engineering, COARA, Autonomous University of San Luis Potosi, Matehuala, SLP 78 700,, Mexico
5 Instituto Politécnico Nacional, Research Center for Applied Sciences and Advanced Technology (CICATA-IPN), Mexico City 11500, Mexico
6 Agricultural Mechanical Engineering, Campus Irapuato-Salamanca, Life Sciences Division (DICIVA), University of Guanajuato, Irapuato, Guanajuato 36 500,, Mexico

In the present study, the corrosion behaviour of CoCrMo ASTM F75 alloy with boride diffusion layer and under simulated physiological conditions has been investigated using electrochemical methods. Corrosion has been analyzed using Tafel and electrochemical impedance spectroscopy (EIS) curves. The corrosion resistance optimization of boride diffusion layer on ASTM F-75 alloy using a central composite design (CCD) in response surface methodology (RSM) has been studied. A boronizing thermochemical treatment has been carried out at different temperatures, time periods and paste mass. The roughness for samples subjected to boride annealing has been higher than that of the unboride sample. X-ray diffraction (XRD) measurement has shown that the boride layer of the sample at least consists of a mixture of CoB and CrB phases. The EIS and Tafel curves results have suggested that boride ASTM F75 alloy has not been a suitable candidate for orthopedics applications.
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  • Corrosion behavior of boride diffusion layer on CoCrMo alloy surface

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Authors

José Luis Arguelles-Ojeda
Mechanical Engineering and Management, COARA, Autonomous University of San Luis Potosi, San Luis Potosí, SLP 78 000, Mexico
Joel Moreno Palmerin
Metallurgic Engineering, Campus Guanajuato, Division of Engineering (DI), University of Guanajuato, Guanajuato, Guanajuato, 36 020, Mexico
Alberto Saldaña-Robles
Agricultural Mechanical Engineering, Campus Irapuato-Salamanca, Life Sciences Division (DICIVA), University of Guanajuato, Irapuato, Guanajuato 36 500, Mexico
Miguel Angel Corona-Rivera
Chemical Engineering, COARA, Autonomous University of San Luis Potosi, Matehuala, SLP 78 700,, Mexico
Martin Zapata-Torres
Instituto Politécnico Nacional, Research Center for Applied Sciences and Advanced Technology (CICATA-IPN), Mexico City 11500, Mexico
Alfredo Márquez-Herrera
Agricultural Mechanical Engineering, Campus Irapuato-Salamanca, Life Sciences Division (DICIVA), University of Guanajuato, Irapuato, Guanajuato 36 500,, Mexico

Abstract


In the present study, the corrosion behaviour of CoCrMo ASTM F75 alloy with boride diffusion layer and under simulated physiological conditions has been investigated using electrochemical methods. Corrosion has been analyzed using Tafel and electrochemical impedance spectroscopy (EIS) curves. The corrosion resistance optimization of boride diffusion layer on ASTM F-75 alloy using a central composite design (CCD) in response surface methodology (RSM) has been studied. A boronizing thermochemical treatment has been carried out at different temperatures, time periods and paste mass. The roughness for samples subjected to boride annealing has been higher than that of the unboride sample. X-ray diffraction (XRD) measurement has shown that the boride layer of the sample at least consists of a mixture of CoB and CrB phases. The EIS and Tafel curves results have suggested that boride ASTM F75 alloy has not been a suitable candidate for orthopedics applications.