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Effect of Deformation Speed on Stress Corrosion and Fracture Toughness of Extruded Mg10Dy and Mg10Dy1Nd Using C-Ring Tests

Maier, Petra LU ; Pamidi, Easwar ; Clausius, Benjamin and Hort, Norbert (2023) In The Minerals, Metals & Materials Series p.73-80
Abstract
The influence of the deformation speed in C-ring tests in Ringer's solution on crack initiation and propagation of extruded Mg10Dy and Mg10Dy1Nd is investigated. Deformation speeds varying from 2 to 0.012 mm/min allow corrosion times from a few minutes to hours. Both the crack initiation force (higher for Mg10Dy1Nd) and displacement (higher for Mg10Dy) increase with decreasing deformation speed up to a corrosion time of 1 h and then decrease, more for Mg10Dy1Nd and slightly more for the displacement compared to the force at higher corrosion times. The decrease is associated with the higher corrosion times—corrosion pits become visible at a test time of 1 h on the tensile side. In Mg10Dy1Nd the fracture toughness increases with decreasing... (More)
The influence of the deformation speed in C-ring tests in Ringer's solution on crack initiation and propagation of extruded Mg10Dy and Mg10Dy1Nd is investigated. Deformation speeds varying from 2 to 0.012 mm/min allow corrosion times from a few minutes to hours. Both the crack initiation force (higher for Mg10Dy1Nd) and displacement (higher for Mg10Dy) increase with decreasing deformation speed up to a corrosion time of 1 h and then decrease, more for Mg10Dy1Nd and slightly more for the displacement compared to the force at higher corrosion times. The decrease is associated with the higher corrosion times—corrosion pits become visible at a test time of 1 h on the tensile side. In Mg10Dy1Nd the fracture toughness increases with decreasing deformation speed, and no clear picture is seen for Mg10Dy. Sub-cracks often initiate at corrosion pits, which show a correlation to twinned grains at the tensile side—increasing fracture toughness. (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
8 pages
publisher
Springer
external identifiers
  • scopus:85159466377
ISSN
2367-1181
2367-1696
ISBN
978-3-031-22644-1
978-3-031-22647-2
978-3-031-22645-8
DOI
10.1007/978-3-031-22645-8_17
language
English
LU publication?
no
id
dd0ed116-6554-4dd1-b647-c656df115679
date added to LUP
2025-01-03 19:28:53
date last changed
2025-07-19 20:46:21
@inproceedings{dd0ed116-6554-4dd1-b647-c656df115679,
  abstract     = {{The influence of the deformation speed in C-ring tests in Ringer's solution on crack initiation and propagation of extruded Mg10Dy and Mg10Dy1Nd is investigated. Deformation speeds varying from 2 to 0.012 mm/min allow corrosion times from a few minutes to hours. Both the crack initiation force (higher for Mg10Dy1Nd) and displacement (higher for Mg10Dy) increase with decreasing deformation speed up to a corrosion time of 1 h and then decrease, more for Mg10Dy1Nd and slightly more for the displacement compared to the force at higher corrosion times. The decrease is associated with the higher corrosion times—corrosion pits become visible at a test time of 1 h on the tensile side. In Mg10Dy1Nd the fracture toughness increases with decreasing deformation speed, and no clear picture is seen for Mg10Dy. Sub-cracks often initiate at corrosion pits, which show a correlation to twinned grains at the tensile side—increasing fracture toughness.}},
  author       = {{Maier, Petra and Pamidi, Easwar and Clausius, Benjamin and Hort, Norbert}},
  booktitle    = {{Magnesium Technology 2023}},
  isbn         = {{978-3-031-22644-1}},
  issn         = {{2367-1181}},
  language     = {{eng}},
  month        = {{02}},
  pages        = {{73--80}},
  publisher    = {{Springer}},
  series       = {{The Minerals, Metals & Materials Series}},
  title        = {{Effect of Deformation Speed on Stress Corrosion and Fracture Toughness of Extruded Mg10Dy and Mg10Dy1Nd Using C-Ring Tests}},
  url          = {{http://dx.doi.org/10.1007/978-3-031-22645-8_17}},
  doi          = {{10.1007/978-3-031-22645-8_17}},
  year         = {{2023}},
}