Effect of Si on microstructure and mechanical properties of Fe-based ultrafine eutectic composites

D. H. Pi; J. M. Park; G. A. Song; J. H. Han; K. R. Lim; S. Yi; S. H. Yi; D. H. Kim; N. S. Lee; Y. Seo; K. B. Kim

doi:10.1016/j.intermet.2010.03.012

Effect of Si on microstructure and mechanical properties of Fe-based ultrafine eutectic composites

D. H. Pi, J. M. Park, G. A. Song, J. H. Han, K. R. Lim, S. Yi, S. H. Yi, D. H. Kim, N. S. Lee, Y. Seo, K. B. Kim

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

5 Scopus citations

Abstract

Addition of Si into a Fe₇₀Ni₁₅B₁₅ ultrafine eutectic composite has a significant influence to modulate the microstructure to bimodal eutectic structure comprising lamellar- and irregular-type eutectic by suppressing the formation of the micron-scale dendrites upon solidification. The (Fe₇₀Ni₁₅B ₁₅)₉₄Si₄ bimodal eutectic composite presents considerably enhanced plasticity of ∼13% with high strength of ∼1520 MPa. The rotational motion of the spherical eutectic colony is considered to be a crucial factor to effectively dissipate shear localization thus improving the plastic deformability.

Original language	English
Pages (from-to)	1856-1859
Number of pages	4
Journal	Intermetallics
Volume	18
Issue number	10
DOIs	https://doi.org/10.1016/j.intermet.2010.03.012
State	Published - Oct 2010

Keywords

A. Composites
B. Alloy design
C. Casting
D. Microstructure

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10.1016/j.intermet.2010.03.012

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abstract = "Addition of Si into a Fe70Ni15B15 ultrafine eutectic composite has a significant influence to modulate the microstructure to bimodal eutectic structure comprising lamellar- and irregular-type eutectic by suppressing the formation of the micron-scale dendrites upon solidification. The (Fe70Ni15B 15)94Si4 bimodal eutectic composite presents considerably enhanced plasticity of ∼13% with high strength of ∼1520 MPa. The rotational motion of the spherical eutectic colony is considered to be a crucial factor to effectively dissipate shear localization thus improving the plastic deformability.",

keywords = "A. Composites, B. Alloy design, C. Casting, D. Microstructure",

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T1 - Effect of Si on microstructure and mechanical properties of Fe-based ultrafine eutectic composites

AU - Pi, D. H.

AU - Park, J. M.

AU - Song, G. A.

AU - Han, J. H.

AU - Lim, K. R.

AU - Yi, S.

AU - Yi, S. H.

AU - Kim, D. H.

AU - Lee, N. S.

AU - Seo, Y.

AU - Kim, K. B.

PY - 2010/10

Y1 - 2010/10

N2 - Addition of Si into a Fe70Ni15B15 ultrafine eutectic composite has a significant influence to modulate the microstructure to bimodal eutectic structure comprising lamellar- and irregular-type eutectic by suppressing the formation of the micron-scale dendrites upon solidification. The (Fe70Ni15B 15)94Si4 bimodal eutectic composite presents considerably enhanced plasticity of ∼13% with high strength of ∼1520 MPa. The rotational motion of the spherical eutectic colony is considered to be a crucial factor to effectively dissipate shear localization thus improving the plastic deformability.

AB - Addition of Si into a Fe70Ni15B15 ultrafine eutectic composite has a significant influence to modulate the microstructure to bimodal eutectic structure comprising lamellar- and irregular-type eutectic by suppressing the formation of the micron-scale dendrites upon solidification. The (Fe70Ni15B 15)94Si4 bimodal eutectic composite presents considerably enhanced plasticity of ∼13% with high strength of ∼1520 MPa. The rotational motion of the spherical eutectic colony is considered to be a crucial factor to effectively dissipate shear localization thus improving the plastic deformability.

KW - A. Composites

KW - B. Alloy design

KW - C. Casting

KW - D. Microstructure

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M3 - Article

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SN - 0966-9795

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SP - 1856

EP - 1859

JO - Intermetallics

JF - Intermetallics

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ER -

Effect of Si on microstructure and mechanical properties of Fe-based ultrafine eutectic composites

Abstract

Keywords

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