Effects of characteristics of Mo dispersions on the plasticity of Mg-based bulk metallic glass composites

J. S.C. Jang; T. H. Li; S. R. Jian; J. C. Huang; T. G. Nieh

doi:10.1016/j.intermet.2011.01.013

Effects of characteristics of Mo dispersions on the plasticity of Mg-based bulk metallic glass composites

J. S.C. Jang, T. H. Li, S. R. Jian, J. C. Huang, T. G. Nieh

材料科學與工程研究所

研究成果: 雜誌貢獻 › 期刊論文 › 同行評審

31 引文斯高帕斯（Scopus）

摘要

The Mg₅₈Cu_28.5Gd₁₁Ag_2.5 bulk metallic glass composites (BMGCs) dispersion strengthened by porous Mo particles with different volume fractions and particle sizes were synthesized by casting and characterized. The presence of porous Mo particles could restrict the shear band propagation. It was found for a given volume fraction of Mo particles, smaller particles would lead to more interfacial areas, shorter inter-particle free spacings, smaller confinement zone sizes than the larger particles, and consequently the improvement of compression plasticity from 10% up to 27%. Also, for a given Mo particle size, higher volume fraction would lead to larger compression plasticity. The inter-particle free spacing, as well as the confinement zone size (mean free path of shear bands), appears to be the controlling factor in limiting the propagation of shear bands which in turn affecting the plasticity of BMGCs.

原文	???core.languages.en_GB???
頁（從 - 到）	738-743
頁數	6
期刊	Intermetallics
卷	19
發行號	5
DOIs	https://doi.org/10.1016/j.intermet.2011.01.013
出版狀態	已出版 - 5月 2011

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10.1016/j.intermet.2011.01.013

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title = "Effects of characteristics of Mo dispersions on the plasticity of Mg-based bulk metallic glass composites",

abstract = "The Mg58Cu28.5Gd11Ag2.5 bulk metallic glass composites (BMGCs) dispersion strengthened by porous Mo particles with different volume fractions and particle sizes were synthesized by casting and characterized. The presence of porous Mo particles could restrict the shear band propagation. It was found for a given volume fraction of Mo particles, smaller particles would lead to more interfacial areas, shorter inter-particle free spacings, smaller confinement zone sizes than the larger particles, and consequently the improvement of compression plasticity from 10% up to 27%. Also, for a given Mo particle size, higher volume fraction would lead to larger compression plasticity. The inter-particle free spacing, as well as the confinement zone size (mean free path of shear bands), appears to be the controlling factor in limiting the propagation of shear bands which in turn affecting the plasticity of BMGCs.",

keywords = "A. Composites, B. Dispersion strengthening, B. Mechanical properties at ambient temperature, B. Metallic glasses, C. Casting",

author = "Jang, {J. S.C.} and Li, {T. H.} and Jian, {S. R.} and Huang, {J. C.} and Nieh, {T. G.}",

note = "Funding Information: It is gratefully to acknowledge the sponsorship by National Science Council of Taiwan, ROC , under the Project No. NSC95–2210-E-214–015-MY3 and NSC98-2221-E-008-116- MY3 . In addition, the authors also like to acknowledge the help on SEM and TEM analysis by the Micro and Nano Analysis Laboratory of I-Shou University.",

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doi = "10.1016/j.intermet.2011.01.013",

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AU - Jang, J. S.C.

AU - Li, T. H.

AU - Jian, S. R.

AU - Huang, J. C.

AU - Nieh, T. G.

N1 - Funding Information: It is gratefully to acknowledge the sponsorship by National Science Council of Taiwan, ROC , under the Project No. NSC95–2210-E-214–015-MY3 and NSC98-2221-E-008-116- MY3 . In addition, the authors also like to acknowledge the help on SEM and TEM analysis by the Micro and Nano Analysis Laboratory of I-Shou University.

PY - 2011/5

Y1 - 2011/5

N2 - The Mg58Cu28.5Gd11Ag2.5 bulk metallic glass composites (BMGCs) dispersion strengthened by porous Mo particles with different volume fractions and particle sizes were synthesized by casting and characterized. The presence of porous Mo particles could restrict the shear band propagation. It was found for a given volume fraction of Mo particles, smaller particles would lead to more interfacial areas, shorter inter-particle free spacings, smaller confinement zone sizes than the larger particles, and consequently the improvement of compression plasticity from 10% up to 27%. Also, for a given Mo particle size, higher volume fraction would lead to larger compression plasticity. The inter-particle free spacing, as well as the confinement zone size (mean free path of shear bands), appears to be the controlling factor in limiting the propagation of shear bands which in turn affecting the plasticity of BMGCs.

AB - The Mg58Cu28.5Gd11Ag2.5 bulk metallic glass composites (BMGCs) dispersion strengthened by porous Mo particles with different volume fractions and particle sizes were synthesized by casting and characterized. The presence of porous Mo particles could restrict the shear band propagation. It was found for a given volume fraction of Mo particles, smaller particles would lead to more interfacial areas, shorter inter-particle free spacings, smaller confinement zone sizes than the larger particles, and consequently the improvement of compression plasticity from 10% up to 27%. Also, for a given Mo particle size, higher volume fraction would lead to larger compression plasticity. The inter-particle free spacing, as well as the confinement zone size (mean free path of shear bands), appears to be the controlling factor in limiting the propagation of shear bands which in turn affecting the plasticity of BMGCs.

KW - A. Composites

KW - B. Dispersion strengthening

KW - B. Mechanical properties at ambient temperature

KW - B. Metallic glasses

KW - C. Casting

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DO - 10.1016/j.intermet.2011.01.013

M3 - 期刊論文

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SN - 0966-9795

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JO - Intermetallics

JF - Intermetallics

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ER -

Effects of characteristics of Mo dispersions on the plasticity of Mg-based bulk metallic glass composites

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