Details
| Original language | English |
|---|---|
| Pages (from-to) | 275-280 |
| Number of pages | 6 |
| Journal | Advanced engineering materials |
| Volume | 13 |
| Issue number | 4 |
| Publication status | Published - 31 Jan 2011 |
| Externally published | Yes |
Abstract
The current work presents the crack propagation behavior in ultrafine-grained (UFG) interstitial-free (IF) steel, and in particular, focuses on the damage evolution in UFG IF steel under cyclic loading. The current results indicate that equal-channel angular pressing (ECAP) has a major influence on the cyclic deformation response of the UFG IF steel, such that the failure and the crack path depend on the inclination plane during ECAP. Furthermore, the UFG IF steel demonstrates significant notch sensitivity in comparison to its coarse-grained counterpart. This is attributed to the ultrafine grains with a large volume fraction of high-angle grain boundaries, where glide of dislocations is hindered and the resulting internal stresses increase the stress concentration further in the presence of a pre-existing notch. Equal-channel angular pressing has a major influence on the cyclic deformation response of UFG IF steel. Failure and crack path depend on the inclination plane during ECAP. UFG IF steel demonstrates significant notch sensitivity. This is attributed to the ultrafine grains with a large volume fraction of high-angle grain boundaries, where glide of dislocations is hindered. The resulting internal stresses increase the stress concentration further in the presence of a pre-existing notch.
Keywords
- crack propagation, fatigue, interstitial-free steel, notch sensitivity, ultrafine-grained material
ASJC Scopus subject areas
- Materials Science(all)
- General Materials Science
- Physics and Astronomy(all)
- Condensed Matter Physics
Cite this
- Standard
- Harvard
- Apa
- Vancouver
- BibTeX
- RIS
In: Advanced engineering materials, Vol. 13, No. 4, 31.01.2011, p. 275-280.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Fatigue Damage Evolution in Ultrafine-Grained Interstitial-Free Steel
AU - Niendorf, Thomas
AU - Canadinc, Demircan
AU - Maier, Hans Jürgen
PY - 2011/1/31
Y1 - 2011/1/31
N2 - The current work presents the crack propagation behavior in ultrafine-grained (UFG) interstitial-free (IF) steel, and in particular, focuses on the damage evolution in UFG IF steel under cyclic loading. The current results indicate that equal-channel angular pressing (ECAP) has a major influence on the cyclic deformation response of the UFG IF steel, such that the failure and the crack path depend on the inclination plane during ECAP. Furthermore, the UFG IF steel demonstrates significant notch sensitivity in comparison to its coarse-grained counterpart. This is attributed to the ultrafine grains with a large volume fraction of high-angle grain boundaries, where glide of dislocations is hindered and the resulting internal stresses increase the stress concentration further in the presence of a pre-existing notch. Equal-channel angular pressing has a major influence on the cyclic deformation response of UFG IF steel. Failure and crack path depend on the inclination plane during ECAP. UFG IF steel demonstrates significant notch sensitivity. This is attributed to the ultrafine grains with a large volume fraction of high-angle grain boundaries, where glide of dislocations is hindered. The resulting internal stresses increase the stress concentration further in the presence of a pre-existing notch.
AB - The current work presents the crack propagation behavior in ultrafine-grained (UFG) interstitial-free (IF) steel, and in particular, focuses on the damage evolution in UFG IF steel under cyclic loading. The current results indicate that equal-channel angular pressing (ECAP) has a major influence on the cyclic deformation response of the UFG IF steel, such that the failure and the crack path depend on the inclination plane during ECAP. Furthermore, the UFG IF steel demonstrates significant notch sensitivity in comparison to its coarse-grained counterpart. This is attributed to the ultrafine grains with a large volume fraction of high-angle grain boundaries, where glide of dislocations is hindered and the resulting internal stresses increase the stress concentration further in the presence of a pre-existing notch. Equal-channel angular pressing has a major influence on the cyclic deformation response of UFG IF steel. Failure and crack path depend on the inclination plane during ECAP. UFG IF steel demonstrates significant notch sensitivity. This is attributed to the ultrafine grains with a large volume fraction of high-angle grain boundaries, where glide of dislocations is hindered. The resulting internal stresses increase the stress concentration further in the presence of a pre-existing notch.
KW - crack propagation
KW - fatigue
KW - interstitial-free steel
KW - notch sensitivity
KW - ultrafine-grained material
UR - http://www.scopus.com/inward/record.url?scp=79953170577&partnerID=8YFLogxK
U2 - 10.1002/adem.201000272
DO - 10.1002/adem.201000272
M3 - Article
AN - SCOPUS:79953170577
VL - 13
SP - 275
EP - 280
JO - Advanced engineering materials
JF - Advanced engineering materials
SN - 1438-1656
IS - 4
ER -