Details
| Original language | English |
|---|---|
| Pages (from-to) | 603-608 |
| Number of pages | 6 |
| Journal | International Journal of Materials Research |
| Volume | 100 |
| Issue number | 4 |
| Publication status | Published - 2009 |
| Externally published | Yes |
Abstract
Fatigue-induced damage accumulation was investigated in a third generation titanium aluminide alloy both at room temperature and at a temperature of 700 °C promoting oxidation. The digital image correlation technique was utilized for monitoring the evolution of local strain fields with cyclic deformation at both temperatures. With the aid of a newly adopted surface patterning technique, digital image correlation successfully detected the crack initiation sites prior to the actual formation of the cracks. Despite the oxidation at elevated temperatures, digital image correlation could detect the crack initiation sites at the early stages of the cyclic deformation, laying out the potential of this technique for monitoring the damage evolution in various metallic materials under severe service conditions.
Keywords
- Digital image correlation, High temperature, Low-cycle fatigue, Strain localization, Titanium aluminide
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Condensed Matter Physics
- Chemistry(all)
- Physical and Theoretical Chemistry
- Materials Science(all)
- Metals and Alloys
- Materials Science(all)
- Materials Chemistry
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In: International Journal of Materials Research, Vol. 100, No. 4, 2009, p. 603-608.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Early detection of crack initiation sites in TiAl alloys during low-cycle fatigue at high temperatures utilizing digital image correlation
AU - Niendorf, Thomas
AU - Burs, Christian
AU - Canadinc, Demircan
AU - Maier, Hans J.
PY - 2009
Y1 - 2009
N2 - Fatigue-induced damage accumulation was investigated in a third generation titanium aluminide alloy both at room temperature and at a temperature of 700 °C promoting oxidation. The digital image correlation technique was utilized for monitoring the evolution of local strain fields with cyclic deformation at both temperatures. With the aid of a newly adopted surface patterning technique, digital image correlation successfully detected the crack initiation sites prior to the actual formation of the cracks. Despite the oxidation at elevated temperatures, digital image correlation could detect the crack initiation sites at the early stages of the cyclic deformation, laying out the potential of this technique for monitoring the damage evolution in various metallic materials under severe service conditions.
AB - Fatigue-induced damage accumulation was investigated in a third generation titanium aluminide alloy both at room temperature and at a temperature of 700 °C promoting oxidation. The digital image correlation technique was utilized for monitoring the evolution of local strain fields with cyclic deformation at both temperatures. With the aid of a newly adopted surface patterning technique, digital image correlation successfully detected the crack initiation sites prior to the actual formation of the cracks. Despite the oxidation at elevated temperatures, digital image correlation could detect the crack initiation sites at the early stages of the cyclic deformation, laying out the potential of this technique for monitoring the damage evolution in various metallic materials under severe service conditions.
KW - Digital image correlation
KW - High temperature
KW - Low-cycle fatigue
KW - Strain localization
KW - Titanium aluminide
UR - http://www.scopus.com/inward/record.url?scp=67149120811&partnerID=8YFLogxK
U2 - 10.3139/146.110064
DO - 10.3139/146.110064
M3 - Article
AN - SCOPUS:67149120811
VL - 100
SP - 603
EP - 608
JO - International Journal of Materials Research
JF - International Journal of Materials Research
SN - 1862-5282
IS - 4
ER -