2014
DOI: 10.1016/j.actamat.2014.07.061
|View full text |Cite
|
Sign up to set email alerts
|

Influence of precipitates on low-cycle fatigue and crack growth behavior in an ultrafine-grained aluminum alloy

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
2
2
1

Citation Types

3
30
0

Year Published

2015
2015
2024
2024

Publication Types

Select...
5
2

Relationship

0
7

Authors

Journals

citations
Cited by 64 publications
(34 citation statements)
references
References 67 publications
3
30
0
Order By: Relevance
“…Apart from grains and sub-grains defined by high-and low-angle boundaries, coherent regions are bounded by accumulated dislocations and are commonly assigned as cells. Cell sizes are averaged out at 180 nm in the extruded condition and typically range from 80 nm-170 nm for both matrix and shear bands of the ECAP condition, which is consistent with the published cell size data determined by STEM [32]. Interestingly, the mean cell size in the matrix region is smaller (≈100 nm) compared to the shear band with the largest cells in the region with the highest microstrain.…”
Section: Evolution Of Microstructuresupporting
confidence: 76%
See 3 more Smart Citations
“…Apart from grains and sub-grains defined by high-and low-angle boundaries, coherent regions are bounded by accumulated dislocations and are commonly assigned as cells. Cell sizes are averaged out at 180 nm in the extruded condition and typically range from 80 nm-170 nm for both matrix and shear bands of the ECAP condition, which is consistent with the published cell size data determined by STEM [32]. Interestingly, the mean cell size in the matrix region is smaller (≈100 nm) compared to the shear band with the largest cells in the region with the highest microstrain.…”
Section: Evolution Of Microstructuresupporting
confidence: 76%
“…ECAP processing enhances the fraction of low-and high-angle grain boundaries, the dislocation density and the fragmentation of strengthening precipitates of the studied aluminum alloy [23,32]. A bimodal grain size distribution and an increased dislocation density appear already after one ECAP pass in both matrix and shear bands [32].…”
Section: Pit Morphologymentioning
confidence: 99%
See 2 more Smart Citations
“…These investigations show the well-known effect of the grain or particle size on the fatigue crack growth. The grain refinement through ECAP leads to a minimized amount of crack deflection and roughness-induced crack closure, which results in higher crack propagation rates and, therefore, in minor thresholds [11][12][13][14][15][16][17][18]. In reinforced materials, particle sizes larger than 2-5 µm have a contrary effect on crack propagation: by increasing crack deflection and roughness-induced crack closure, crack propagation rates are lowered [19][20][21][22][23][24].…”
Section: Introductionmentioning
confidence: 99%