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Improvement of fatigue strength of a Mg-Zn-Zr alloy by integrated extrusion and equal-channel angular pressing

Vinogradov, Alexei; Orlov, Dmitry and Estrin, Yuri (2012) In Scripta Materialia 67(2). p.209-212
Abstract

Fatigue performance under axisymmetric push-pull loading of a magnesium alloy Mg-6Zn-0.5Zr (ZK60) after processing by integrated extrusion and equal-channel angular pressing was investigated. Such processing was shown to nearly treble the endurance limit of the alloy, raising it to 160 MPa. It was established that the high-cycle fatigue performance of ZK60 is primarily controlled by dislocation substructure, grain size and crystal orientation, rather than the presence of intermetallic particles.

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author
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Equal channel angular pressing, Extrusion, Fatigue strength, High-cycle fatigue, Magnesium alloys
in
Scripta Materialia
volume
67
issue
2
pages
4 pages
publisher
Elsevier
external identifiers
  • scopus:84861859349
ISSN
1359-6462
DOI
10.1016/j.scriptamat.2012.04.021
language
English
LU publication?
no
id
a371ed06-43b3-49d8-ad55-f7d6f2e0cf3b
date added to LUP
2016-06-20 15:36:00
date last changed
2017-01-29 04:30:41
@article{a371ed06-43b3-49d8-ad55-f7d6f2e0cf3b,
  abstract     = {<p>Fatigue performance under axisymmetric push-pull loading of a magnesium alloy Mg-6Zn-0.5Zr (ZK60) after processing by integrated extrusion and equal-channel angular pressing was investigated. Such processing was shown to nearly treble the endurance limit of the alloy, raising it to 160 MPa. It was established that the high-cycle fatigue performance of ZK60 is primarily controlled by dislocation substructure, grain size and crystal orientation, rather than the presence of intermetallic particles.</p>},
  author       = {Vinogradov, Alexei and Orlov, Dmitry and Estrin, Yuri},
  issn         = {1359-6462},
  keyword      = {Equal channel angular pressing,Extrusion,Fatigue strength,High-cycle fatigue,Magnesium alloys},
  language     = {eng},
  number       = {2},
  pages        = {209--212},
  publisher    = {Elsevier},
  series       = {Scripta Materialia},
  title        = {Improvement of fatigue strength of a Mg-Zn-Zr alloy by integrated extrusion and equal-channel angular pressing},
  url          = {http://dx.doi.org/10.1016/j.scriptamat.2012.04.021},
  volume       = {67},
  year         = {2012},
}