Using extrusion and ECAP processing to achieve low temperature and high strain rate superplasticity

Kiyoshi Matsubara; Yuichi Miyahara; Koichi Makii; Zenji Horita; Terence G. Langdon

doi:10.4028/www.scientific.net/msf.419-422.497

Using extrusion and ECAP processing to achieve low temperature and high strain rate superplasticity

Kiyoshi Matsubara, Yuichi Miyahara, Koichi Makii, Zenji Horita, Terence G. Langdon

Research output: Contribution to journal › Conference article › peer-review

4 Citations (Scopus)

Abstract

Grain refinement of a cast Mg-9% Al alloy was attempted using equal-channel angular pressing (ECAP). It is shown that the introduction of extrusion before ECAP is important in order to refine the grain size successfully through ECAP without breaking the sample: this combined process is designated EX-ECAP. Static annealing experiments were conducted to examine the thermal stability of the fine-grained structure produced by EX-ECAP. Tensile testing was conducted on the fine-grained alloy at elevated temperatures. It is shown that both low temperature superplasticity and high strain rate superplasticity are attained for the fine-grained sample.

Original language	English
Pages (from-to)	497-502
Number of pages	6
Journal	Materials Science Forum
Volume	419-422
Issue number	I
DOIs	https://doi.org/10.4028/www.scientific.net/msf.419-422.497
Publication status	Published - 2003
Event	Proceedings of the Second Osaka International Conference on Platform Science and Technology for Advanced Magnesium Alloys 2003 - Osaka, Japan Duration: Jan 26 2003 → Jan 30 2003

All Science Journal Classification (ASJC) codes

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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Cite this

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title = "Using extrusion and ECAP processing to achieve low temperature and high strain rate superplasticity",

abstract = "Grain refinement of a cast Mg-9% Al alloy was attempted using equal-channel angular pressing (ECAP). It is shown that the introduction of extrusion before ECAP is important in order to refine the grain size successfully through ECAP without breaking the sample: this combined process is designated EX-ECAP. Static annealing experiments were conducted to examine the thermal stability of the fine-grained structure produced by EX-ECAP. Tensile testing was conducted on the fine-grained alloy at elevated temperatures. It is shown that both low temperature superplasticity and high strain rate superplasticity are attained for the fine-grained sample.",

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T1 - Using extrusion and ECAP processing to achieve low temperature and high strain rate superplasticity

AU - Matsubara, Kiyoshi

AU - Miyahara, Yuichi

AU - Makii, Koichi

AU - Horita, Zenji

AU - Langdon, Terence G.

PY - 2003

Y1 - 2003

N2 - Grain refinement of a cast Mg-9% Al alloy was attempted using equal-channel angular pressing (ECAP). It is shown that the introduction of extrusion before ECAP is important in order to refine the grain size successfully through ECAP without breaking the sample: this combined process is designated EX-ECAP. Static annealing experiments were conducted to examine the thermal stability of the fine-grained structure produced by EX-ECAP. Tensile testing was conducted on the fine-grained alloy at elevated temperatures. It is shown that both low temperature superplasticity and high strain rate superplasticity are attained for the fine-grained sample.

AB - Grain refinement of a cast Mg-9% Al alloy was attempted using equal-channel angular pressing (ECAP). It is shown that the introduction of extrusion before ECAP is important in order to refine the grain size successfully through ECAP without breaking the sample: this combined process is designated EX-ECAP. Static annealing experiments were conducted to examine the thermal stability of the fine-grained structure produced by EX-ECAP. Tensile testing was conducted on the fine-grained alloy at elevated temperatures. It is shown that both low temperature superplasticity and high strain rate superplasticity are attained for the fine-grained sample.

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SN - 0255-5476

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EP - 502

JO - Materials Science Forum

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T2 - Proceedings of the Second Osaka International Conference on Platform Science and Technology for Advanced Magnesium Alloys 2003

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ER -

Using extrusion and ECAP processing to achieve low temperature and high strain rate superplasticity

Abstract

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