Abstract
The effect of alloying elements on crack propagation behaviour was investigated using extruded Mg-Ca and Mg-Zn binary alloys, with and without {} type deformation twins (DT). These alloys had similar microstructures grain boundary (GB) structure, basal texture, and grain size of ∼30 m. Most of the cracks in the Mg-Ca alloys were propagated along the high-angle GBs, i.e. exhibiting intergranular fracture, regardless of the existence of DT. On the other hand, crack propagation behaviour in the Mg-Zn alloy was influenced by the presence of twin boundaries (TBs). The fraction of TBs that was associated with the crack propagation showed higher in the twin-induced Mg-Zn alloy. These crack propagation tendencies resulted from modification of the TB energies by additional alloying elements.
| Original language | English |
|---|---|
| Pages (from-to) | 3317-3330 |
| Number of pages | 14 |
| Journal | Philosophical Magazine |
| Volume | 94 |
| Issue number | 29 |
| DOIs | |
| Publication status | Published - Oct 1 2014 |
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All Science Journal Classification (ASJC) codes
- Condensed Matter Physics
Cite this
Crack propagation behaviour in magnesium binary alloys. / Somekawa, Hidetoshi; Singh, Alok; Inoue, Tadanobu; Tsuzaki, Kaneaki.
In: Philosophical Magazine, Vol. 94, No. 29, 01.10.2014, p. 3317-3330.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Crack propagation behaviour in magnesium binary alloys
AU - Somekawa, Hidetoshi
AU - Singh, Alok
AU - Inoue, Tadanobu
AU - Tsuzaki, Kaneaki
PY - 2014/10/1
Y1 - 2014/10/1
N2 - The effect of alloying elements on crack propagation behaviour was investigated using extruded Mg-Ca and Mg-Zn binary alloys, with and without {} type deformation twins (DT). These alloys had similar microstructures grain boundary (GB) structure, basal texture, and grain size of ∼30 m. Most of the cracks in the Mg-Ca alloys were propagated along the high-angle GBs, i.e. exhibiting intergranular fracture, regardless of the existence of DT. On the other hand, crack propagation behaviour in the Mg-Zn alloy was influenced by the presence of twin boundaries (TBs). The fraction of TBs that was associated with the crack propagation showed higher in the twin-induced Mg-Zn alloy. These crack propagation tendencies resulted from modification of the TB energies by additional alloying elements.
AB - The effect of alloying elements on crack propagation behaviour was investigated using extruded Mg-Ca and Mg-Zn binary alloys, with and without {} type deformation twins (DT). These alloys had similar microstructures grain boundary (GB) structure, basal texture, and grain size of ∼30 m. Most of the cracks in the Mg-Ca alloys were propagated along the high-angle GBs, i.e. exhibiting intergranular fracture, regardless of the existence of DT. On the other hand, crack propagation behaviour in the Mg-Zn alloy was influenced by the presence of twin boundaries (TBs). The fraction of TBs that was associated with the crack propagation showed higher in the twin-induced Mg-Zn alloy. These crack propagation tendencies resulted from modification of the TB energies by additional alloying elements.
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U2 - 10.1080/14786435.2014.956840
DO - 10.1080/14786435.2014.956840
M3 - Article
VL - 94
SP - 3317
EP - 3330
JO - Philosophical Magazine
JF - Philosophical Magazine
SN - 1478-6435
IS - 29
ER -