Superplasticity and superplastic forming ability of Al-Mg-Sc alloy
The superplasticity and formability, of a cold-rolled Al-6Mg-0.2Sc alloy with coarse grains were investigated. High temperature tensile tests were performed in the temperature range of 400- 500℃ with strain rates ranging from 2.0×10^-4 to 2.0×10^-2s^-1 and the maximum clongation of 421% was obtained...
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| Published in | Transactions of Nonferrous Metals Society of China Vol. 16; no. A03; pp. 1411 - 1414 |
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| Main Author | |
| Format | Journal Article |
| Language | English |
| Published |
College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
01.12.2006
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| Subjects | |
| Online Access | Get full text |
| ISSN | 1003-6326 |
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| Abstract | The superplasticity and formability, of a cold-rolled Al-6Mg-0.2Sc alloy with coarse grains were investigated. High temperature tensile tests were performed in the temperature range of 400- 500℃ with strain rates ranging from 2.0×10^-4 to 2.0×10^-2s^-1 and the maximum clongation of 421% was obtained at 450℃ and strain rate of 2.0×10^-4s^-1. Superplastic bulging tests of a square conical shaped part were carried out under art optimum superplastic condition, with the wall thickness reduction less than 8%. which illustrates that ihe alloy has good superplastic formability,The cavities in the sections of the tensile specimens and the bulging parts were analyzed, which can bc reduced greatly by imposing proper backpressure in the bulging process. |
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| AbstractList | The superplasticity and formability, of a cold-rolled Al-6Mg-0.2Sc alloy with coarse grains were investigated. High temperature tensile tests were performed in the temperature range of 400- 500℃ with strain rates ranging from 2.0×10^-4 to 2.0×10^-2s^-1 and the maximum clongation of 421% was obtained at 450℃ and strain rate of 2.0×10^-4s^-1. Superplastic bulging tests of a square conical shaped part were carried out under art optimum superplastic condition, with the wall thickness reduction less than 8%. which illustrates that ihe alloy has good superplastic formability,The cavities in the sections of the tensile specimens and the bulging parts were analyzed, which can bc reduced greatly by imposing proper backpressure in the bulging process. TG1; The superplasticity and formability of a cold-rolled Al-6Mg-0.2Sc alloy with coarse grains were investigated. High temperature tensile tests were performed in the temperature range of 400-500 ℃ with strain rates ranging from 2.0×l0-4 to 2.0×10-2 s-1, and the maximum elongation of 421% was obtained at 450 ℃ and strain rate of 2.0× 10-4 s-1. Superplastic bulging tests of a square conical shaped part were carried out under an optimum superplastic condition, with the wall thickness reduction less than 8%, which illustrates that the alloy has good superplastic formability. The cavities in the sections of the tensile specimens and the bulging parts were analyzed, which can be reduced greatly by imposing proper backpressure in the bulging process. The superplasticity and formability of a cold-rolled A1-6Mg-0.2Sc alloy with coarse grains were investigated. High temperature tensile tests were performed in the temperature range of 400-500 r with strain rates ranging from 2.0x10-4 to 2.0x10-2s-1, and the maximum elongation of 421% was obtained at 450 V and strain rate of 2.0x le s-1. Superplastic bulging tests of a square conical shaped part were carried out under an optimum superplastic condition, with the wall thickness reduction less than 8%, which illustrates that the alloy has good superplastic formability. The cavities in the sections of the tensile specimens and the bulging parts were analyzed, which can be reduced greatly by imposing proper backpressure in the bulging process. |
| Author | 陈明和 张杰刚 李金华 芮玉龙 |
| AuthorAffiliation | College. of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics. Nanjing 210016, China |
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| Keywords | Al-Mg-Sc alloy cavity formability backpressure superplasticity aluminum alloy |
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| Notes | backpressttre Al-Mg-Sc alloy 43-1239/TG aluminum allay formability Al-Mg-Sc alloy; aluminum allay; superplasticity; formability; cavity; backpressttre cavity superplasticity TG146.21 TG146.22 ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 |
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| Publisher | College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China |
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| Snippet | The superplasticity and formability, of a cold-rolled Al-6Mg-0.2Sc alloy with coarse grains were investigated. High temperature tensile tests were performed in... The superplasticity and formability of a cold-rolled A1-6Mg-0.2Sc alloy with coarse grains were investigated. High temperature tensile tests were performed in... TG1; The superplasticity and formability of a cold-rolled Al-6Mg-0.2Sc alloy with coarse grains were investigated. High temperature tensile tests were... |
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| SubjectTerms | 可成形性 超塑性 |
| Title | Superplasticity and superplastic forming ability of Al-Mg-Sc alloy |
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