liu.seSearch for publications in DiVA
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Investigation of localized damage in single crystals subjected to thermalmechanical fatigue (TMF)
Linköping University, Department of Management and Engineering, Engineering Materials. Linköping University, The Institute of Technology.
Linköping University, Department of Management and Engineering, Engineering Materials. Linköping University, The Institute of Technology.
Linköping University, Department of Management and Engineering, Solid Mechanics. Linköping University, The Institute of Technology.
Linköping University, Department of Management and Engineering, Solid Mechanics. Linköping University, The Institute of Technology.
Show others and affiliations
2010 (English)In: Procedia Engineering, ISSN 1877-7058, Vol. 2, no 1, 657-666 p.Article in journal (Refereed) Published
Abstract [en]

The deformation and damage mechanisms arising during thermalmechanical fatigue (TMF) of a CMSX-4 and high-Cr single crystal super alloy, SCA425 have been investigated and a completely new failure mechanism involving recrystallization and oxidation has been discovered. The primary deformation mechanism is slip along the {111} planes. The deformation is highly localised to a number of bands, where recrystallization eventually occur during the thermalmechanical fatigue process. When the final failure occurs along these recrystallized bands it is accompanied by the formation of voids due to the presence of grain boundaries. The damage process is further enhanced by oxidation, since recrystallization occurs more easily in the gamma depleted zone under the oxide scale. The macroscopic as well as the microscopic damage and fracture mechanisms are varying with alloy and heat treatment. The aim of this work is to further investigate, discuss the local damage mechanisms responsible for TMF damage. Of special interest is the localisation of damage into twins and extremely localized rafted deformation bands.

Place, publisher, year, edition, pages
ELSEVIER SCIENCE BV , 2010. Vol. 2, no 1, 657-666 p.
Keyword [en]
Thermalmechanical fatigue; Deformation mechanisms; Recrystallization; Single crystal superalloy; Rafting
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:liu:diva-58351DOI: 10.1016/j.proeng.2010.03.071ISI: 000278762900069OAI: oai:DiVA.org:liu-58351DiVA: diva2:343349
Available from: 2010-08-13 Created: 2010-08-11 Last updated: 2014-09-25

Open Access in DiVA

fulltext(2991 kB)152 downloads
File information
File name FULLTEXT01.pdfFile size 2991 kBChecksum SHA-512
5c8b23be222dcecbc1cfb8db2c73fc0c1efb2fc6e90994c410108adb65cefc666358d4f3f53a87a461eb067f2704fec35f773c223910a24c760b48ac9e3fd05d
Type fulltextMimetype application/pdf

Other links

Publisher's full text

Authority records BETA

Johansson, StenMoverare, JohanLeidermark, DanielSimonsson, KjellKanesund, Jan

Search in DiVA

By author/editor
Johansson, StenMoverare, JohanLeidermark, DanielSimonsson, KjellKanesund, Jan
By organisation
Engineering MaterialsThe Institute of TechnologySolid Mechanics
Engineering and Technology

Search outside of DiVA

GoogleGoogle Scholar
Total: 152 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 324 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf