Details
| Translated title of the contribution | Characterization of the damage development in Ultrafinegrained interstitial-free steel by digital image correlation |
|---|---|
| Original language | German |
| Pages (from-to) | 27-35 |
| Number of pages | 9 |
| Journal | Materialpruefung/Materials Testing |
| Volume | 52 |
| Issue number | 1-2 |
| Publication status | Published - Feb 2010 |
| Externally published | Yes |
Abstract
Ultrafine-grained (UFG) interstitial-free (IF) steel is characterized by extraordinary mechanical properties under monotonie and cyclic loading. However, unusual damage evolution was observed in some UFG-IF steel samples from specific processing routes. In particular, cracks in fatigued samples did not propagate perpendicular to the loading axis. In order to characterize the evolution of damage localized strain fields were investigated by means of digital image correlation. It is demonstrated that monitoring the accumulation of localized strains is an efficient tool that allows for identification of the critical microstructural features already in the very early stages of deformation. Thus, the microstructural features leading to failure upon further loading could be investigated in detail by means of electron-optical microscopy. In case of the UFG-IF steel, process-induced microstructural heterogeneities were identified, which promoted failure along characteristic directions.
ASJC Scopus subject areas
- Materials Science(all)
- General Materials Science
- Engineering(all)
- Mechanics of Materials
- Engineering(all)
- Mechanical Engineering
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In: Materialpruefung/Materials Testing, Vol. 52, No. 1-2, 02.2010, p. 27-35.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Charakterisierung der Schädigungsentwicklung in ultrafeinkörnigem IF Stahl mittels digitaler Bildkorrelation
AU - Niendorf, Thomas
AU - Maier, Hans J.
PY - 2010/2
Y1 - 2010/2
N2 - Ultrafine-grained (UFG) interstitial-free (IF) steel is characterized by extraordinary mechanical properties under monotonie and cyclic loading. However, unusual damage evolution was observed in some UFG-IF steel samples from specific processing routes. In particular, cracks in fatigued samples did not propagate perpendicular to the loading axis. In order to characterize the evolution of damage localized strain fields were investigated by means of digital image correlation. It is demonstrated that monitoring the accumulation of localized strains is an efficient tool that allows for identification of the critical microstructural features already in the very early stages of deformation. Thus, the microstructural features leading to failure upon further loading could be investigated in detail by means of electron-optical microscopy. In case of the UFG-IF steel, process-induced microstructural heterogeneities were identified, which promoted failure along characteristic directions.
AB - Ultrafine-grained (UFG) interstitial-free (IF) steel is characterized by extraordinary mechanical properties under monotonie and cyclic loading. However, unusual damage evolution was observed in some UFG-IF steel samples from specific processing routes. In particular, cracks in fatigued samples did not propagate perpendicular to the loading axis. In order to characterize the evolution of damage localized strain fields were investigated by means of digital image correlation. It is demonstrated that monitoring the accumulation of localized strains is an efficient tool that allows for identification of the critical microstructural features already in the very early stages of deformation. Thus, the microstructural features leading to failure upon further loading could be investigated in detail by means of electron-optical microscopy. In case of the UFG-IF steel, process-induced microstructural heterogeneities were identified, which promoted failure along characteristic directions.
UR - http://www.scopus.com/inward/record.url?scp=76249130524&partnerID=8YFLogxK
U2 - 10.3139/120.110103
DO - 10.3139/120.110103
M3 - Artikel
AN - SCOPUS:76249130524
VL - 52
SP - 27
EP - 35
JO - Materialpruefung/Materials Testing
JF - Materialpruefung/Materials Testing
SN - 0025-5300
IS - 1-2
ER -