Influence of precipitation behavior of different crystalline phases for embrittlement behavior of several Zr-based metallic glasses

Ichiro Seki; Hisamichi Kimura; Kazuhiro Nakata; Akihisa Inoue

doi:10.2320/matertrans.M2010195

Influence of precipitation behavior of different crystalline phases for embrittlement behavior of several Zr-based metallic glasses

Ichiro Seki, Hisamichi Kimura, Kazuhiro Nakata, Akihisa Inoue

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

2 Citations (Scopus)

Abstract

We have examined difference in embrittlement behavior of characteristic Zr-based metallic glasses of Zr₅₅Cu₃₀Al ₁₀Ni₅, Zr₅₉Cu₃₁ Al₁₀ and Zr₆₅Cu_17.5Ni₁₀Al_7.5. All of the metallic glasses are embrittled with the precipitation of crystalline phases, and the crystalline phases for the Zr₅₅Cu₃₀Al ₁₀Ni₅ metallic glass change in annealing temperatures of T_g-15 K and T_X-50K. The embrittlement behavior is relating well with the behavior of the precipitated crystalline phases and is caused with step-wise process when the several kinds of crystalline phases are precipitated continuously and complexly. The precipitation of crystalline seems to relate to formation of shear band with the embrittlement behavior. Especially, CUZr₂ phase causes much shear band near fracture point with bending test.

Original language	English
Pages (from-to)	2033-2038
Number of pages	6
Journal	Materials Transactions
Volume	51
Issue number	11
DOIs	https://doi.org/10.2320/matertrans.M2010195
Publication status	Published - 2010 Nov

Keywords

Annealing
Bending test
Fracture strain
Shear-band
Vickers micro-hardness
Zirconium-based metallic glass

ASJC Scopus subject areas

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

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title = "Influence of precipitation behavior of different crystalline phases for embrittlement behavior of several Zr-based metallic glasses",

abstract = "We have examined difference in embrittlement behavior of characteristic Zr-based metallic glasses of Zr55Cu30Al 10Ni5, Zr59Cu31 Al10 and Zr65Cu17.5Ni10Al7.5. All of the metallic glasses are embrittled with the precipitation of crystalline phases, and the crystalline phases for the Zr55Cu30Al 10Ni5 metallic glass change in annealing temperatures of Tg-15 K and TX-50K. The embrittlement behavior is relating well with the behavior of the precipitated crystalline phases and is caused with step-wise process when the several kinds of crystalline phases are precipitated continuously and complexly. The precipitation of crystalline seems to relate to formation of shear band with the embrittlement behavior. Especially, CUZr2 phase causes much shear band near fracture point with bending test.",

keywords = "Annealing, Bending test, Fracture strain, Shear-band, Vickers micro-hardness, Zirconium-based metallic glass",

author = "Ichiro Seki and Hisamichi Kimura and Kazuhiro Nakata and Akihisa Inoue",

year = "2010",

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doi = "10.2320/matertrans.M2010195",

language = "English",

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publisher = "Japan Institute of Metals (JIM)",

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T1 - Influence of precipitation behavior of different crystalline phases for embrittlement behavior of several Zr-based metallic glasses

AU - Seki, Ichiro

AU - Kimura, Hisamichi

AU - Nakata, Kazuhiro

AU - Inoue, Akihisa

PY - 2010/11

Y1 - 2010/11

N2 - We have examined difference in embrittlement behavior of characteristic Zr-based metallic glasses of Zr55Cu30Al 10Ni5, Zr59Cu31 Al10 and Zr65Cu17.5Ni10Al7.5. All of the metallic glasses are embrittled with the precipitation of crystalline phases, and the crystalline phases for the Zr55Cu30Al 10Ni5 metallic glass change in annealing temperatures of Tg-15 K and TX-50K. The embrittlement behavior is relating well with the behavior of the precipitated crystalline phases and is caused with step-wise process when the several kinds of crystalline phases are precipitated continuously and complexly. The precipitation of crystalline seems to relate to formation of shear band with the embrittlement behavior. Especially, CUZr2 phase causes much shear band near fracture point with bending test.

AB - We have examined difference in embrittlement behavior of characteristic Zr-based metallic glasses of Zr55Cu30Al 10Ni5, Zr59Cu31 Al10 and Zr65Cu17.5Ni10Al7.5. All of the metallic glasses are embrittled with the precipitation of crystalline phases, and the crystalline phases for the Zr55Cu30Al 10Ni5 metallic glass change in annealing temperatures of Tg-15 K and TX-50K. The embrittlement behavior is relating well with the behavior of the precipitated crystalline phases and is caused with step-wise process when the several kinds of crystalline phases are precipitated continuously and complexly. The precipitation of crystalline seems to relate to formation of shear band with the embrittlement behavior. Especially, CUZr2 phase causes much shear band near fracture point with bending test.

KW - Annealing

KW - Bending test

KW - Fracture strain

KW - Shear-band

KW - Vickers micro-hardness

KW - Zirconium-based metallic glass

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Influence of precipitation behavior of different crystalline phases for embrittlement behavior of several Zr-based metallic glasses

Abstract

Keywords

ASJC Scopus subject areas

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