In vitro study of Biodegradation in Mg-alloys by Isothermal Calorimetry
(2021) MMTM05 20211Production and Materials Engineering
- Abstract
- Magnesium corrosion in an aqueous environment is a multi-layer, complex process. A literature survey shows significant gaps and the modelling work reported indicates a lack of clarity in understanding the corrosion process. Studies on the effects of impurities and interfacial compounds formed by selected alloying additions would help in filling some of these gaps.
Further, the evolution of hydrogen gas with the dissolution of magnesium may pose a threat to living cells in Biomedical Applications. As a result, it is critical to monitor Mg corrosion rates and investigate the impact of alloying elements. For clarity, an overview of the basic mechanisms of magnesium corrosion in an aqueous solution and the thermodynamic background is... (More) - Magnesium corrosion in an aqueous environment is a multi-layer, complex process. A literature survey shows significant gaps and the modelling work reported indicates a lack of clarity in understanding the corrosion process. Studies on the effects of impurities and interfacial compounds formed by selected alloying additions would help in filling some of these gaps.
Further, the evolution of hydrogen gas with the dissolution of magnesium may pose a threat to living cells in Biomedical Applications. As a result, it is critical to monitor Mg corrosion rates and investigate the impact of alloying elements. For clarity, an overview of the basic mechanisms of magnesium corrosion in an aqueous solution and the thermodynamic background is presented.
The project investigates the corrosion behaviour of three alloys (Mg-0.8Nd, Mg-0.2Zr & Mg-0.8Nd-0.2Zr) in a 0.9wt% NaCl solution using Isothermal calorimetry and the pressure measurement technique. Heat flow, and energy changes were monitored, providing the basis for understanding the corrosion process. Hydrogen gas evolution measurements were correlated with thermal power. Small changes in the corrosion process lead to noise-like variations in thermal power. The effect of alloying addition and heat treatment on corrosion rates have also been addressed in the present study. (Less) - Popular Abstract
- Magnesium corrosion in an aqueous environment is a multi-layer, complex process. A literature survey shows significant gaps and the modelling work reported indicates a lack of clarity in understanding the corrosion process. Studies on the effects of impurities and interfacial compounds formed by selected alloying additions would help in filling some of these gaps.
Further, the evolution of hydrogen gas with the dissolution of magnesium may pose a threat to living cells in Biomedical Applications. As a result, it is critical to monitor Mg corrosion rates and investigate the impact of alloying elements. For clarity, an overview of the basic mechanisms of magnesium corrosion in an aqueous solution and the thermodynamic background is... (More) - Magnesium corrosion in an aqueous environment is a multi-layer, complex process. A literature survey shows significant gaps and the modelling work reported indicates a lack of clarity in understanding the corrosion process. Studies on the effects of impurities and interfacial compounds formed by selected alloying additions would help in filling some of these gaps.
Further, the evolution of hydrogen gas with the dissolution of magnesium may pose a threat to living cells in Biomedical Applications. As a result, it is critical to monitor Mg corrosion rates and investigate the impact of alloying elements. For clarity, an overview of the basic mechanisms of magnesium corrosion in an aqueous solution and the thermodynamic background is presented.
The project investigates the corrosion behaviour of three alloys (Mg-0.8Nd, Mg-0.2Zr & Mg-0.8Nd-0.2Zr) in a 0.9wt% NaCl solution using Isothermal calorimetry and the pressure measurement technique. Heat flow, and energy changes were monitored, providing the basis for understanding the corrosion process. Hydrogen gas evolution measurements were correlated with thermal power. Small changes in the corrosion process lead to noise-like variations in thermal power. The effect of alloying addition and heat treatment on corrosion rates have also been addressed in the present study. (Less)
Please use this url to cite or link to this publication:
http://lup.lub.lu.se/student-papers/record/9054528
- author
- Kekare, Prasad Rajendra LU and Kulkarni, Akshat LU
- supervisor
- organization
- course
- MMTM05 20211
- year
- 2021
- type
- H2 - Master's Degree (Two Years)
- subject
- keywords
- Isothermal Calorimetry, Degradation of Mg Alloys, Supersaturated solid solution (SSSS), Corrosion rate, Aqueous corrosion.
- report number
- ISBN LUTFD2/TFMT--21/5065--SE
- language
- English
- id
- 9054528
- date added to LUP
- 2021-06-15 12:40:42
- date last changed
- 2021-06-15 12:40:42
@misc{9054528,
abstract = {{Magnesium corrosion in an aqueous environment is a multi-layer, complex process. A literature survey shows significant gaps and the modelling work reported indicates a lack of clarity in understanding the corrosion process. Studies on the effects of impurities and interfacial compounds formed by selected alloying additions would help in filling some of these gaps.
Further, the evolution of hydrogen gas with the dissolution of magnesium may pose a threat to living cells in Biomedical Applications. As a result, it is critical to monitor Mg corrosion rates and investigate the impact of alloying elements. For clarity, an overview of the basic mechanisms of magnesium corrosion in an aqueous solution and the thermodynamic background is presented.
The project investigates the corrosion behaviour of three alloys (Mg-0.8Nd, Mg-0.2Zr & Mg-0.8Nd-0.2Zr) in a 0.9wt% NaCl solution using Isothermal calorimetry and the pressure measurement technique. Heat flow, and energy changes were monitored, providing the basis for understanding the corrosion process. Hydrogen gas evolution measurements were correlated with thermal power. Small changes in the corrosion process lead to noise-like variations in thermal power. The effect of alloying addition and heat treatment on corrosion rates have also been addressed in the present study.}},
author = {{Kekare, Prasad Rajendra and Kulkarni, Akshat}},
language = {{eng}},
note = {{Student Paper}},
title = {{In vitro study of Biodegradation in Mg-alloys by Isothermal Calorimetry}},
year = {{2021}},
}