TY - GEN
T1 - Application of high-pressure sliding for grain refinement of Al and Mg alloys
AU - Tazoe, Kiyonari
AU - Honda, Shuji
AU - Horita, Zenji
PY - 2011/2/25
Y1 - 2011/2/25
N2 - An earlier study showed that high-pressure sliding (HPS) is effective for grain refinement of pure Al in a rectangular sheet form using the principle of high-pressure torsion. In this study, the HPS is applied for grain refinement of an Al-3%Mg-0.2%Sc alloy and an AZ61 Mg alloy. HPS was conducted under a pressure of 1 GPa with sliding distances of 10 to 30 mm at room temperature for the Al alloy and at 473 K for the Mg alloy The average grain size is ∼300 nm for both the Al and Mg alloys, respectively. Tensile tests showed that a superplastic elongation of ∼1500% is achieved in the Al-3%Mg-0.2%Sc alloy at 573 K with an initial strain rate of 3.3×10-3 s-1 and of ∼600% in the AZ61 alloy at 573 K with an initial strain rate of 1×10-3 s-1.
AB - An earlier study showed that high-pressure sliding (HPS) is effective for grain refinement of pure Al in a rectangular sheet form using the principle of high-pressure torsion. In this study, the HPS is applied for grain refinement of an Al-3%Mg-0.2%Sc alloy and an AZ61 Mg alloy. HPS was conducted under a pressure of 1 GPa with sliding distances of 10 to 30 mm at room temperature for the Al alloy and at 473 K for the Mg alloy The average grain size is ∼300 nm for both the Al and Mg alloys, respectively. Tensile tests showed that a superplastic elongation of ∼1500% is achieved in the Al-3%Mg-0.2%Sc alloy at 573 K with an initial strain rate of 3.3×10-3 s-1 and of ∼600% in the AZ61 alloy at 573 K with an initial strain rate of 1×10-3 s-1.
UR - http://www.scopus.com/inward/record.url?scp=79951848757&partnerID=8YFLogxK
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U2 - 10.4028/www.scientific.net/MSF.667-669.91
DO - 10.4028/www.scientific.net/MSF.667-669.91
M3 - Conference contribution
AN - SCOPUS:79951848757
SN - 9783037850077
T3 - Materials Science Forum
SP - 91
EP - 96
BT - Nanomaterials by Severe Plastic Deformation, NanoSPD5
T2 - 5th International Conference on Nanomaterials by Severe Plastic Deformation, NanoSPD5
Y2 - 21 March 2011 through 25 March 2011
ER -