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Influence of Corrosion Extent on Residual Tensile Strength and Corrosion Fatigue Properties of an Mg-Y-Nd Alloy Characterized by μCT

Clausius, B. ; Wegner, N. ; Jeyavalan, S. ; Hartweg, H. ; Walther, F. and Maier, Petra LU (2023) In The Minerals, Metals & Materials Series p.95-98
Abstract
This study focuses on the influence of inhomogeneous corrosion on the quasi-static and cyclic properties of an Mg−Y−Nd alloy. Uniform corrosion is essential for biodegradable implant materials to avoid notching effects and premature failure. Previous studies on extruded Mg−3Y−3RE have shown a pitting tendency in Ringer’s solution at 37 °C. Tensile tests on pre-corroded samples with different corrosion extents, adjusted by corrosion time, allow the correlation to residual tensile strength. Corrosion fatigue tests enable determination of the influence of the pitting factor on service life and monitoring of the evolution of pits through electrochemical parameters. µCT scanning of corroded samples before and after the tests allows the... (More)
This study focuses on the influence of inhomogeneous corrosion on the quasi-static and cyclic properties of an Mg−Y−Nd alloy. Uniform corrosion is essential for biodegradable implant materials to avoid notching effects and premature failure. Previous studies on extruded Mg−3Y−3RE have shown a pitting tendency in Ringer’s solution at 37 °C. Tensile tests on pre-corroded samples with different corrosion extents, adjusted by corrosion time, allow the correlation to residual tensile strength. Corrosion fatigue tests enable determination of the influence of the pitting factor on service life and monitoring of the evolution of pits through electrochemical parameters. µCT scanning of corroded samples before and after the tests allows the identification of weak spots. Through 3D-µCT analysis, it is possible to quantify the corrosion extent and thus conclude that the amount and size of corrosion pits are critical for shorter corrosion times, whereas the residual load-bearing area is decisive for longer corrosion times. (Less)
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author
; ; ; ; and
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
host publication
Magnesium Technology 2023
series title
The Minerals, Metals & Materials Series
pages
4 pages
publisher
Springer
external identifiers
  • scopus:85159447676
ISSN
2367-1696
2367-1181
ISBN
978-3-031-22645-8
978-3-031-22644-1
978-3-031-22647-2
DOI
10.1007/978-3-031-22645-8_21
language
English
LU publication?
no
id
08fa8f51-bcc2-4275-b356-f536b64a0b92
date added to LUP
2025-01-03 20:20:58
date last changed
2025-07-19 16:57:45
@inproceedings{08fa8f51-bcc2-4275-b356-f536b64a0b92,
  abstract     = {{This study focuses on the influence of inhomogeneous corrosion on the quasi-static and cyclic properties of an Mg−Y−Nd alloy. Uniform corrosion is essential for biodegradable implant materials to avoid notching effects and premature failure. Previous studies on extruded Mg−3Y−3RE have shown a pitting tendency in Ringer’s solution at 37 °C. Tensile tests on pre-corroded samples with different corrosion extents, adjusted by corrosion time, allow the correlation to residual tensile strength. Corrosion fatigue tests enable determination of the influence of the pitting factor on service life and monitoring of the evolution of pits through electrochemical parameters. µCT scanning of corroded samples before and after the tests allows the identification of weak spots. Through 3D-µCT analysis, it is possible to quantify the corrosion extent and thus conclude that the amount and size of corrosion pits are critical for shorter corrosion times, whereas the residual load-bearing area is decisive for longer corrosion times.}},
  author       = {{Clausius, B. and Wegner, N. and Jeyavalan, S. and Hartweg, H. and Walther, F. and Maier, Petra}},
  booktitle    = {{Magnesium Technology 2023}},
  isbn         = {{978-3-031-22645-8}},
  issn         = {{2367-1696}},
  language     = {{eng}},
  month        = {{02}},
  pages        = {{95--98}},
  publisher    = {{Springer}},
  series       = {{The Minerals, Metals & Materials Series}},
  title        = {{Influence of Corrosion Extent on Residual Tensile Strength and Corrosion Fatigue Properties of an Mg-Y-Nd Alloy Characterized by μCT}},
  url          = {{http://dx.doi.org/10.1007/978-3-031-22645-8_21}},
  doi          = {{10.1007/978-3-031-22645-8_21}},
  year         = {{2023}},
}