Material State and Heat Treatment Effects on the Corrosion of Mg-Zn Alloys for Biomedical Use
(2025) EEML05 20251Department of Biomedical Engineering
- Abstract
- This study investigates the corrosion behavior of a magnesium-zinc (Mg-Zn) alloy in a simulated body-like environment, with the aim of optimizing its degradation rate for biodegradable medical implant applications. These implants are designed to support bone healing and then gradually degrade once no longer needed, thereby eliminating the need for additional surgery. Magnesium alloys are promising for such applications due to lightweight properties, biocompatibility, and ability to corrode naturally in the body, eliminating the need for surgical removal. Despite these advantages, their rapid corrosion rate often exceeds the bone healing period, limiting their clinical use.
To address this issue, different heat treatments and material... (More) - This study investigates the corrosion behavior of a magnesium-zinc (Mg-Zn) alloy in a simulated body-like environment, with the aim of optimizing its degradation rate for biodegradable medical implant applications. These implants are designed to support bone healing and then gradually degrade once no longer needed, thereby eliminating the need for additional surgery. Magnesium alloys are promising for such applications due to lightweight properties, biocompatibility, and ability to corrode naturally in the body, eliminating the need for surgical removal. Despite these advantages, their rapid corrosion rate often exceeds the bone healing period, limiting their clinical use.
To address this issue, different heat treatments and material states are analyzed to understand their effect on corrosion rates. A medium-concentration Mg-Zn alloy was immersed in an electrolyte solution called Hank’s Balanced Salt Solution (HBSS) at 37°C to mimic physiological conditions. Corrosion kinetics was monitored over seven days using an isothermal calorimeter. This is a specialized instrument developed at Lund University that combines heat and pressure measurements to analyze material degradation over time. Specimens were suspended in HBSS within sealed containers that were placed in the calorimeter, and corrosion was monitored continuously over a seven-day period.
Obtained results demonstrate that samples in homogenized state have the lowest corrosion rate, whereas those heat-treated at 180°C for peak-aged condition show the highest corrosion rate. These findings contribute to a better understanding of how processing conditions affect corrosion behavior and support the development of optimized biodegradable implants. (Less)
Please use this url to cite or link to this publication:
http://lup.lub.lu.se/student-papers/record/9206121
- author
- Zaghmout, Yara LU and Msaebes, Mena LU
- supervisor
- organization
- alternative title
- Materialtillstånd och värmebehandlingens effekt på korrosion hos Mg-Zn legeringar för biomedicinsk användning
- course
- EEML05 20251
- year
- 2025
- type
- M2 - Bachelor Degree
- subject
- language
- English
- id
- 9206121
- date added to LUP
- 2025-07-01 09:43:23
- date last changed
- 2025-07-01 09:43:23
@misc{9206121,
abstract = {{This study investigates the corrosion behavior of a magnesium-zinc (Mg-Zn) alloy in a simulated body-like environment, with the aim of optimizing its degradation rate for biodegradable medical implant applications. These implants are designed to support bone healing and then gradually degrade once no longer needed, thereby eliminating the need for additional surgery. Magnesium alloys are promising for such applications due to lightweight properties, biocompatibility, and ability to corrode naturally in the body, eliminating the need for surgical removal. Despite these advantages, their rapid corrosion rate often exceeds the bone healing period, limiting their clinical use.
To address this issue, different heat treatments and material states are analyzed to understand their effect on corrosion rates. A medium-concentration Mg-Zn alloy was immersed in an electrolyte solution called Hank’s Balanced Salt Solution (HBSS) at 37°C to mimic physiological conditions. Corrosion kinetics was monitored over seven days using an isothermal calorimeter. This is a specialized instrument developed at Lund University that combines heat and pressure measurements to analyze material degradation over time. Specimens were suspended in HBSS within sealed containers that were placed in the calorimeter, and corrosion was monitored continuously over a seven-day period.
Obtained results demonstrate that samples in homogenized state have the lowest corrosion rate, whereas those heat-treated at 180°C for peak-aged condition show the highest corrosion rate. These findings contribute to a better understanding of how processing conditions affect corrosion behavior and support the development of optimized biodegradable implants.}},
author = {{Zaghmout, Yara and Msaebes, Mena}},
language = {{eng}},
note = {{Student Paper}},
title = {{Material State and Heat Treatment Effects on the Corrosion of Mg-Zn Alloys for Biomedical Use}},
year = {{2025}},
}