Low-Temperature Superplasticity in an Al-Mg-Sc Alloy Processed by ECAP
2016 ◽
Vol 838-839
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pp. 422-427
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Keyword(s):
The ultrafine grained structure of an AA5024 with an average size of ∼0.7 μm was produced by equal-channel angular pressing (ECAP) at 300°C with a total strain of ~12. Superplastic behavior of this alloy was examined in the temperature interval 175 - 300°C at strain rates ranging from 10-4 to 10-1 s-1. The maximum elongation-to-failure of ~1200% with the corresponding strain rate sensitivity coefficient, m, of ∼0.49 was attained at a temperature of 275°C and a strain rate of 5.6×10–3s–1. At 175°C (~0.53Tm, where Tm is the melting point), the elongation-to-failure of ~370% with the m value of ~0.3 was found at ε̇=1.4×10–4 s–1.
2016 ◽
Vol 838-839
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pp. 150-156
2016 ◽
Vol 838-839
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pp. 338-343
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2016 ◽
Vol 838-839
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pp. 428-433
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Effect of Ultrasonic Treatment on the Characteristics of Superplasticity of Titanium Alloy Ti-6Al-4V
2018 ◽
Vol 385
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pp. 53-58
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2006 ◽
Vol 503-504
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pp. 31-36
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2016 ◽
Vol 838-839
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pp. 278-284
2016 ◽
Vol 838-839
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pp. 373-378
2010 ◽
Vol 667-669
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pp. 815-820
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