High strength ultrafine eutectic Fe-Nb-Al composites with enhanced plasticity

J. M. Park; K. B. Kim; W. T. Kim; M. H. Lee; J. Eckert; D. H. Kim

doi:10.1016/j.intermet.2008.01.005

High strength ultrafine eutectic Fe-Nb-Al composites with enhanced plasticity

J. M. Park, K. B. Kim, W. T. Kim, M. H. Lee, J. Eckert, D. H. Kim

Department of Materials Science and Engineering

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

88 Citations (Scopus)

Abstract

An enhancement of plasticity in high strength ultrafine eutectic Fe-Nb composites has been accomplished by introducing heterogeneities in length-scale of the microstructure. Addition of Al acting as a stabilizer for the α-Fe phase in the Fe-Nb composites results in the formation of a larger volume fraction of primary α-Fe phase and an ultrafine eutectic structure with reduced lamellar spacing. As a result, Fe-Nb-Al composites exhibit a good combination of fracture strength and plasticity. Due to the presence of the solution hardened α-Fe phase, the Fe-Nb-Al composites exhibit significantly enhanced work hardening behavior at room temperature.

Original language	English
Pages (from-to)	642-650
Number of pages	9
Journal	Intermetallics
Volume	16
Issue number	5
DOIs	https://doi.org/10.1016/j.intermet.2008.01.005
Publication status	Published - 2008 May

Bibliographical note

Funding Information:
The authors are grateful to T.E. Kim, S.W. Sohn, J.H. Na and K.T. Kim for valuable discussions. This work was supported by the Global Research Laboratory Program of Korea Ministry of Science and Technology. J.M. Park acknowledges the support from the Second Stage of Brain Korea 21 Project in 2007.

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.2008.01.005

Cite this

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title = "High strength ultrafine eutectic Fe-Nb-Al composites with enhanced plasticity",

abstract = "An enhancement of plasticity in high strength ultrafine eutectic Fe-Nb composites has been accomplished by introducing heterogeneities in length-scale of the microstructure. Addition of Al acting as a stabilizer for the α-Fe phase in the Fe-Nb composites results in the formation of a larger volume fraction of primary α-Fe phase and an ultrafine eutectic structure with reduced lamellar spacing. As a result, Fe-Nb-Al composites exhibit a good combination of fracture strength and plasticity. Due to the presence of the solution hardened α-Fe phase, the Fe-Nb-Al composites exhibit significantly enhanced work hardening behavior at room temperature.",

author = "Park, {J. M.} and Kim, {K. B.} and Kim, {W. T.} and Lee, {M. H.} and J. Eckert and Kim, {D. H.}",

note = "Funding Information: The authors are grateful to T.E. Kim, S.W. Sohn, J.H. Na and K.T. Kim for valuable discussions. This work was supported by the Global Research Laboratory Program of Korea Ministry of Science and Technology. J.M. Park acknowledges the support from the Second Stage of Brain Korea 21 Project in 2007.",

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doi = "10.1016/j.intermet.2008.01.005",

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AU - Park, J. M.

AU - Kim, K. B.

AU - Kim, W. T.

AU - Lee, M. H.

AU - Eckert, J.

AU - Kim, D. H.

N1 - Funding Information: The authors are grateful to T.E. Kim, S.W. Sohn, J.H. Na and K.T. Kim for valuable discussions. This work was supported by the Global Research Laboratory Program of Korea Ministry of Science and Technology. J.M. Park acknowledges the support from the Second Stage of Brain Korea 21 Project in 2007.

PY - 2008/5

Y1 - 2008/5

N2 - An enhancement of plasticity in high strength ultrafine eutectic Fe-Nb composites has been accomplished by introducing heterogeneities in length-scale of the microstructure. Addition of Al acting as a stabilizer for the α-Fe phase in the Fe-Nb composites results in the formation of a larger volume fraction of primary α-Fe phase and an ultrafine eutectic structure with reduced lamellar spacing. As a result, Fe-Nb-Al composites exhibit a good combination of fracture strength and plasticity. Due to the presence of the solution hardened α-Fe phase, the Fe-Nb-Al composites exhibit significantly enhanced work hardening behavior at room temperature.

AB - An enhancement of plasticity in high strength ultrafine eutectic Fe-Nb composites has been accomplished by introducing heterogeneities in length-scale of the microstructure. Addition of Al acting as a stabilizer for the α-Fe phase in the Fe-Nb composites results in the formation of a larger volume fraction of primary α-Fe phase and an ultrafine eutectic structure with reduced lamellar spacing. As a result, Fe-Nb-Al composites exhibit a good combination of fracture strength and plasticity. Due to the presence of the solution hardened α-Fe phase, the Fe-Nb-Al composites exhibit significantly enhanced work hardening behavior at room temperature.

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High strength ultrafine eutectic Fe-Nb-Al composites with enhanced plasticity

Abstract

Bibliographical note

All Science Journal Classification (ASJC) codes

Access to Document

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