Influence of deformation ageing treatment on microstructure and properties of aluminum alloy 2618

Journal Article · Tue Jul 15 00:00:00 EDT 2008 · Materials Characterization

DOI:https://doi.org/10.1016/j.matchar.2007.08.007· OSTI ID:21140750

Danqing, Yi ^[1]; Xuping, Su; Fucheng, Yin ^[2]

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1. Institute of Material Science and Engineering, Central South University, Changsha 410083, Hunan (China)
2. Key Laboratory of Materials Design and Preparation Technology of Hunan Province, Xiangtan University, Xiangtan 411105, Hunan (China)

The effects of deformation ageing treatment (DAT) on the microstructure and properties of aluminum alloy 2618 were investigated. The alloy was subjected to deformation ageing treatment which included solution treating at 535 deg. C quenching into water at room-temperature, cold rolling (10%) and further ageing to peak hardness level at 200 deg. C. The electron microscopic studies revealed that the treatment affects the ageing characteristics and the coarsening of ageing phase (S') at elevated-temperature. The dislocation-precipitate tangles substructure couldn't be found in alloy 2618. The tensile and hardness tests showed that deformation-ageing treatment causes a significant improvement in tensile strength and hardness to alloy 2618 at room- and elevated-temperature.

• OSTI ID: 21140750
• Journal Information: Materials Characterization, Vol. 59, Issue 7; Other Information: DOI: 10.1016/j.matchar.2007.08.007; PII: S1044-5803(07)00291-4; Copyright (c) 2007 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved; Country of input: International Atomic Energy Agency (IAEA); ISSN 1044-5803
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
AGING
ALUMINIUM ALLOYS
DEFORMATION
DISLOCATIONS
HARDNESS
MICROSTRUCTURE
PRECIPITATION
QUENCHING
ROLLING
TEMPERATURE RANGE 0273-0400 K
TEMPERATURE RANGE 0400-1000 K
TENSILE PROPERTIES