Multi-phase Al-based ultrafine composite with multi-scale microstructure

J. M. Park; K. B. Kim; D. H. Kim; N. Mattern; R. Li; G. Liu; J. Eckert

doi:10.1016/j.intermet.2010.02.042

Multi-phase Al-based ultrafine composite with multi-scale microstructure

J. M. Park, K. B. Kim, D. H. Kim, N. Mattern, R. Li, G. Liu, J. Eckert

Department of Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

50 Citations (Scopus)

Abstract

A new class of Al-base multi-phase ultrafine composites with multi-scale microstructure, which exhibits high strength and large compressive plasticity at ambient temperature, has been developed in the Al-Cu-Si ternary system. The formation of the favorable multi-phase multi-modal structure can be achieved by proper alloy selection and by controlling the solidification process. The developed hierarchical ultrafine composites exhibit high fracture strength of ∼1 GPa and large compressive plasticity up to ∼25%. The large macroscopic plastic strain is attributed to the combination of dislocation-based slip deformation in the ductile phase and extensive shear banding in the intermetallic phase.

Original language	English
Pages (from-to)	1829-1833
Number of pages	5
Journal	Intermetallics
Volume	18
Issue number	10
DOIs	https://doi.org/10.1016/j.intermet.2010.02.042
Publication status	Published - 2010 Oct

Bibliographical note

Funding Information:
This work was supported by the Global Research Laboratory Program of the Korea Ministry of Education, Science and Technology . Stimulating discussions with G. Wang, J. Jayaraj, K. Chattopadhyay and S. Pauly are gratefully acknowledged.

All Science Journal Classification (ASJC) codes

Chemistry(all)
Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

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10.1016/j.intermet.2010.02.042

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title = "Multi-phase Al-based ultrafine composite with multi-scale microstructure",

abstract = "A new class of Al-base multi-phase ultrafine composites with multi-scale microstructure, which exhibits high strength and large compressive plasticity at ambient temperature, has been developed in the Al-Cu-Si ternary system. The formation of the favorable multi-phase multi-modal structure can be achieved by proper alloy selection and by controlling the solidification process. The developed hierarchical ultrafine composites exhibit high fracture strength of ∼1 GPa and large compressive plasticity up to ∼25%. The large macroscopic plastic strain is attributed to the combination of dislocation-based slip deformation in the ductile phase and extensive shear banding in the intermetallic phase.",

author = "Park, {J. M.} and Kim, {K. B.} and Kim, {D. H.} and N. Mattern and R. Li and G. Liu and J. Eckert",

note = "Funding Information: This work was supported by the Global Research Laboratory Program of the Korea Ministry of Education, Science and Technology . Stimulating discussions with G. Wang, J. Jayaraj, K. Chattopadhyay and S. Pauly are gratefully acknowledged.",

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doi = "10.1016/j.intermet.2010.02.042",

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AU - Park, J. M.

AU - Kim, K. B.

AU - Kim, D. H.

AU - Mattern, N.

AU - Li, R.

AU - Liu, G.

AU - Eckert, J.

N1 - Funding Information: This work was supported by the Global Research Laboratory Program of the Korea Ministry of Education, Science and Technology . Stimulating discussions with G. Wang, J. Jayaraj, K. Chattopadhyay and S. Pauly are gratefully acknowledged.

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Multi-phase Al-based ultrafine composite with multi-scale microstructure

Abstract

Bibliographical note

All Science Journal Classification (ASJC) codes

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