Abstract
1. A cast alloy of Al-3% Mg-0.2% Sc was subjected to equal-channel angular pressing at room temperature to a total strain of ∼8. Following ECA pressing, the microstructure was heterogeneous with small areas of subgrains interspersed within larger areas of grains having boundaries with high angles of misorientation. The average grain size was ∼0.2 μm. 2. Static annealing revealed that the microstructure was thermally stable because of the presence of the dilute scandium addition. The grain size remained at <1 μm after annealing for 1 hour at temperatures up to 673 K. 3. The alloy exhibited high strain rate superplasticity with an elongation of 1030% when tested in tension at 673 K using an initial strain rate of 3.3 × 10-2 s-1.
| Original language | English |
|---|---|
| Pages (from-to) | 1851-1856 |
| Number of pages | 6 |
| Journal | Scripta Materialia |
| Volume | 38 |
| Issue number | 12 |
| DOIs | |
| Publication status | Published - May 12 1998 |
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All Science Journal Classification (ASJC) codes
- Materials Science(all)
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering
- Metals and Alloys
Cite this
High strain rate superelasticity in an Al-Mg alloy containing scandium. / Komura, Shogo; Berbon, Patrick B.; Furukawa, Minoru; Horita, Zenji; Nemoto, Minoru; Langdon, Terence G.
In: Scripta Materialia, Vol. 38, No. 12, 12.05.1998, p. 1851-1856.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - High strain rate superelasticity in an Al-Mg alloy containing scandium
AU - Komura, Shogo
AU - Berbon, Patrick B.
AU - Furukawa, Minoru
AU - Horita, Zenji
AU - Nemoto, Minoru
AU - Langdon, Terence G.
PY - 1998/5/12
Y1 - 1998/5/12
N2 - 1. A cast alloy of Al-3% Mg-0.2% Sc was subjected to equal-channel angular pressing at room temperature to a total strain of ∼8. Following ECA pressing, the microstructure was heterogeneous with small areas of subgrains interspersed within larger areas of grains having boundaries with high angles of misorientation. The average grain size was ∼0.2 μm. 2. Static annealing revealed that the microstructure was thermally stable because of the presence of the dilute scandium addition. The grain size remained at <1 μm after annealing for 1 hour at temperatures up to 673 K. 3. The alloy exhibited high strain rate superplasticity with an elongation of 1030% when tested in tension at 673 K using an initial strain rate of 3.3 × 10-2 s-1.
AB - 1. A cast alloy of Al-3% Mg-0.2% Sc was subjected to equal-channel angular pressing at room temperature to a total strain of ∼8. Following ECA pressing, the microstructure was heterogeneous with small areas of subgrains interspersed within larger areas of grains having boundaries with high angles of misorientation. The average grain size was ∼0.2 μm. 2. Static annealing revealed that the microstructure was thermally stable because of the presence of the dilute scandium addition. The grain size remained at <1 μm after annealing for 1 hour at temperatures up to 673 K. 3. The alloy exhibited high strain rate superplasticity with an elongation of 1030% when tested in tension at 673 K using an initial strain rate of 3.3 × 10-2 s-1.
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UR - http://www.scopus.com/inward/citedby.url?scp=0032058321&partnerID=8YFLogxK
U2 - 10.1016/S1359-6462(98)00099-2
DO - 10.1016/S1359-6462(98)00099-2
M3 - Article
AN - SCOPUS:0032058321
VL - 38
SP - 1851
EP - 1856
JO - Scripta Materialia
JF - Scripta Materialia
SN - 1359-6462
IS - 12
ER -