Structural evolution of cold rolled multi-layers in the Al-Cu-Fe ternary system

J. S. Park; E. Fleury; J. H. Kim; H. J. Chang; W. T. Kim; D. H. Kim

doi:10.1557/proc-805-ll1.2

Structural evolution of cold rolled multi-layers in the Al-Cu-Fe ternary system

J. S. Park, E. Fleury, J. H. Kim, H. J. Chang, W. T. Kim, D. H. Kim

Department of Materials Science and Engineering

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

Abstract

Samples with a target composition of Al_62.5Cu ₂₅Fe_12.5 (at.%) have been produced from the repeated cold rolling and folding (R&F) process of Al, Cu and Fe elemental foils. Upon early increments of the R&F cycle, the mechanically-induced process led to the fragmentation of the initial foils, which resulted in the dispersion of elemental Fe layers through the refined Al and Cu layers. After 40 R&F cycles the Al₂Cu phase was detected, while Fe did not contribute to the formation of compounds. Thermal analyses suggested that the formation and dissolution of the Al₂Cu and Al₇Cu₂Fe phases are critical steps for the synthesis of the i-phase during post-R&F treatment. Annealing between 650° and 750°C enabled the formation of the stable i-phase and resulted in high values of the microhardness.

Original language	English
Pages (from-to)	15-20
Number of pages	6
Journal	Materials Research Society Symposium - Proceedings
Volume	805
DOIs	https://doi.org/10.1557/proc-805-ll1.2
Publication status	Published - 2003
Event	Quasicrystals 2003 - Preparation, Properties and Applications - Boston, MA., United States Duration: 2003 Dec 1 → 2003 Dec 3

All Science Journal Classification (ASJC) codes

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

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title = "Structural evolution of cold rolled multi-layers in the Al-Cu-Fe ternary system",

abstract = "Samples with a target composition of Al62.5Cu 25Fe12.5 (at.%) have been produced from the repeated cold rolling and folding (R&F) process of Al, Cu and Fe elemental foils. Upon early increments of the R&F cycle, the mechanically-induced process led to the fragmentation of the initial foils, which resulted in the dispersion of elemental Fe layers through the refined Al and Cu layers. After 40 R&F cycles the Al2Cu phase was detected, while Fe did not contribute to the formation of compounds. Thermal analyses suggested that the formation and dissolution of the Al2Cu and Al7Cu2Fe phases are critical steps for the synthesis of the i-phase during post-R&F treatment. Annealing between 650° and 750°C enabled the formation of the stable i-phase and resulted in high values of the microhardness.",

author = "Park, {J. S.} and E. Fleury and Kim, {J. H.} and Chang, {H. J.} and Kim, {W. T.} and Kim, {D. H.}",

year = "2003",

doi = "10.1557/proc-805-ll1.2",

language = "English",

volume = "805",

pages = "15--20",

journal = "Materials Research Society Symposium - Proceedings",

issn = "0272-9172",

publisher = "Materials Research Society",

note = "Quasicrystals 2003 - Preparation, Properties and Applications ; Conference date: 01-12-2003 Through 03-12-2003",

}

TY - JOUR

T1 - Structural evolution of cold rolled multi-layers in the Al-Cu-Fe ternary system

AU - Park, J. S.

AU - Fleury, E.

AU - Kim, J. H.

AU - Chang, H. J.

AU - Kim, W. T.

AU - Kim, D. H.

PY - 2003

Y1 - 2003

N2 - Samples with a target composition of Al62.5Cu 25Fe12.5 (at.%) have been produced from the repeated cold rolling and folding (R&F) process of Al, Cu and Fe elemental foils. Upon early increments of the R&F cycle, the mechanically-induced process led to the fragmentation of the initial foils, which resulted in the dispersion of elemental Fe layers through the refined Al and Cu layers. After 40 R&F cycles the Al2Cu phase was detected, while Fe did not contribute to the formation of compounds. Thermal analyses suggested that the formation and dissolution of the Al2Cu and Al7Cu2Fe phases are critical steps for the synthesis of the i-phase during post-R&F treatment. Annealing between 650° and 750°C enabled the formation of the stable i-phase and resulted in high values of the microhardness.

AB - Samples with a target composition of Al62.5Cu 25Fe12.5 (at.%) have been produced from the repeated cold rolling and folding (R&F) process of Al, Cu and Fe elemental foils. Upon early increments of the R&F cycle, the mechanically-induced process led to the fragmentation of the initial foils, which resulted in the dispersion of elemental Fe layers through the refined Al and Cu layers. After 40 R&F cycles the Al2Cu phase was detected, while Fe did not contribute to the formation of compounds. Thermal analyses suggested that the formation and dissolution of the Al2Cu and Al7Cu2Fe phases are critical steps for the synthesis of the i-phase during post-R&F treatment. Annealing between 650° and 750°C enabled the formation of the stable i-phase and resulted in high values of the microhardness.

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SN - 0272-9172

VL - 805

SP - 15

EP - 20

JO - Materials Research Society Symposium - Proceedings

JF - Materials Research Society Symposium - Proceedings

T2 - Quasicrystals 2003 - Preparation, Properties and Applications

Y2 - 1 December 2003 through 3 December 2003

ER -

Structural evolution of cold rolled multi-layers in the Al-Cu-Fe ternary system

Abstract

All Science Journal Classification (ASJC) codes

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