Aging behavior of Al-Li-Cu-Mg alloy processed by high-pressure torsion

Seungwon Lee; Daichi Akama; Zenji Horita; Tetsuya Masuda; Shoichi Hirosawa; Kenji Matsuda

doi:10.4028/www.scientific.net/MSF.654-656.1243

Aging behavior of Al-Li-Cu-Mg alloy processed by high-pressure torsion

Seungwon Lee, Daichi Akama, Zenji Horita, Tetsuya Masuda, Shoichi Hirosawa, Kenji Matsuda

Materials Processing

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

This study presents an application of high-pressure torsion (HPT) to an Al-Li-Cu-Mg alloy (2091). The alloy was subjected to solid solution treatment at 505°C for 30 minutes and was processed by HPT under 6 GPa for 5 revolutions at room temperature. The hardness increased with straining and saturated to a constant level at 225 Hv. Aging was undertaken on the HPT-processed alloy at 100, 150 and 190°C for the total periods up to 9.3 days. The aging treatment led to a further increase in the hardness to ∼275 Hv. It is shown that the simultaneous strengthening of the alloy due to grain refinement and age hardening was successfully achieved by application of HPT and subsequent aging treatment. The enhancement of the strength is prominent when compared with the application of a conventional rolling process.

Original language	English
Title of host publication	PRICM7
Pages	1243-1246
Number of pages	4
DOIs	https://doi.org/10.4028/www.scientific.net/MSF.654-656.1243
Publication status	Published - Aug 17 2010
Event	7th Pacific Rim International Conference on Advanced Materials and Processing, PRICM-7 - Cairns, QLD, Australia Duration: Aug 2 2010 → Aug 6 2010

Publication series

Name	Materials Science Forum
Volume	654-656
ISSN (Print)	0255-5476

Other

Other	7th Pacific Rim International Conference on Advanced Materials and Processing, PRICM-7
Country	Australia
City	Cairns, QLD
Period	8/2/10 → 8/6/10

All Science Journal Classification (ASJC) codes

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

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Lee, S, Akama, D, Horita, Z, Masuda, T, Hirosawa, S & Matsuda, K 2010, Aging behavior of Al-Li-Cu-Mg alloy processed by high-pressure torsion. in PRICM7. Materials Science Forum, vol. 654-656, pp. 1243-1246, 7th Pacific Rim International Conference on Advanced Materials and Processing, PRICM-7, Cairns, QLD, Australia, 8/2/10. https://doi.org/10.4028/www.scientific.net/MSF.654-656.1243

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abstract = "This study presents an application of high-pressure torsion (HPT) to an Al-Li-Cu-Mg alloy (2091). The alloy was subjected to solid solution treatment at 505°C for 30 minutes and was processed by HPT under 6 GPa for 5 revolutions at room temperature. The hardness increased with straining and saturated to a constant level at 225 Hv. Aging was undertaken on the HPT-processed alloy at 100, 150 and 190°C for the total periods up to 9.3 days. The aging treatment led to a further increase in the hardness to ∼275 Hv. It is shown that the simultaneous strengthening of the alloy due to grain refinement and age hardening was successfully achieved by application of HPT and subsequent aging treatment. The enhancement of the strength is prominent when compared with the application of a conventional rolling process.",

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AU - Lee, Seungwon

AU - Akama, Daichi

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AU - Hirosawa, Shoichi

AU - Matsuda, Kenji

PY - 2010/8/17

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N2 - This study presents an application of high-pressure torsion (HPT) to an Al-Li-Cu-Mg alloy (2091). The alloy was subjected to solid solution treatment at 505°C for 30 minutes and was processed by HPT under 6 GPa for 5 revolutions at room temperature. The hardness increased with straining and saturated to a constant level at 225 Hv. Aging was undertaken on the HPT-processed alloy at 100, 150 and 190°C for the total periods up to 9.3 days. The aging treatment led to a further increase in the hardness to ∼275 Hv. It is shown that the simultaneous strengthening of the alloy due to grain refinement and age hardening was successfully achieved by application of HPT and subsequent aging treatment. The enhancement of the strength is prominent when compared with the application of a conventional rolling process.

AB - This study presents an application of high-pressure torsion (HPT) to an Al-Li-Cu-Mg alloy (2091). The alloy was subjected to solid solution treatment at 505°C for 30 minutes and was processed by HPT under 6 GPa for 5 revolutions at room temperature. The hardness increased with straining and saturated to a constant level at 225 Hv. Aging was undertaken on the HPT-processed alloy at 100, 150 and 190°C for the total periods up to 9.3 days. The aging treatment led to a further increase in the hardness to ∼275 Hv. It is shown that the simultaneous strengthening of the alloy due to grain refinement and age hardening was successfully achieved by application of HPT and subsequent aging treatment. The enhancement of the strength is prominent when compared with the application of a conventional rolling process.

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