Influence of Ni and Co additions on supercooled liquid region, devitrification behaviour and mechanical properties of Cu-Zr-Ti bulk metallic glass

D. V. Louzguine; A. Inoue

doi:10.4028/www.scientific.net/jmnm.15-16.31

Influence of Ni and Co additions on supercooled liquid region, devitrification behaviour and mechanical properties of Cu-Zr-Ti bulk metallic glass

D. V. Louzguine, A. Inoue

Advanced Institute for Materials Research (AIMR)

Tohoku University

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

19 Citations (Scopus)

Abstract

The influence of Ni and Co on devitrification and properties of Cu ₆₀Zr₃₀Ti₁₀ metallic glass is studied in the present work. Bulk and ribbon samples of Cu_60-xM_xZr ₃₀Ti₁₀ (at.%) (M=Ni and Co) alloys were obtained by copper mould casting and melt spinning technique, respectively. The studied glassy alloys showed high compressive fraction strength. Small additions of Ni and Co significantly increase supercooled liquid region of the Cu₆₀Zr ₃₀Ti₁₀ metallic glass. Devitrification of the Cu _60-xM_xZr₃₀Ti₁₀ (at.%) ribbon samples was studied in details. Ni addition drastically changes devitrification behaviour of the Cu₆₀Zr₃₀Ti₁₀ when the Ni content is above 3.75 at.%. Cu₆₀Zr₃₀Ti₁₀ and Cu_57.5Zr₃₀Ti₁₀Ni_2.5 metallic glasses devitrify from the supercooled liquid with low energy barrier for nucleation while devitrification of the alloys containing more than 3.75 at.% Ni or Co proceeds with high energy barrier for nucleation. DSC curves exhibit a single strong exothermic peak at Ni content of 5-60 at.%. In these alloys oC68 (Cu,Ni)₁₀(Zr,Ti)₇ phase (solid solution of Ni and Ti in the equilibrium Aba2 Cu₁₀Zr₇) is formed.

Original language	English
Pages (from-to)	31-36
Number of pages	6
Journal	Journal of Metastable and Nanocrystalline Materials
Volume	15-16
DOIs	https://doi.org/10.4028/www.scientific.net/jmnm.15-16.31
Publication status	Published - 2003
Event	Proceedings of the 9th International Symposium on Metastable Mechanically Alloyed and Nanocrystalline Materials (ISMANAM-2002) - Seoul, Korea, Republic of Duration: 2002 Sept 8 → 2002 Sept 12

Keywords

Bulk Metallic Glasses
Casting
Devitrification
DSC
Glassy Alloys
TEM

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title = "Influence of Ni and Co additions on supercooled liquid region, devitrification behaviour and mechanical properties of Cu-Zr-Ti bulk metallic glass",

abstract = "The influence of Ni and Co on devitrification and properties of Cu 60Zr30Ti10 metallic glass is studied in the present work. Bulk and ribbon samples of Cu60-xMxZr 30Ti10 (at.%) (M=Ni and Co) alloys were obtained by copper mould casting and melt spinning technique, respectively. The studied glassy alloys showed high compressive fraction strength. Small additions of Ni and Co significantly increase supercooled liquid region of the Cu60Zr 30Ti10 metallic glass. Devitrification of the Cu 60-xMxZr30Ti10 (at.%) ribbon samples was studied in details. Ni addition drastically changes devitrification behaviour of the Cu60Zr30Ti10 when the Ni content is above 3.75 at.%. Cu60Zr30Ti10 and Cu57.5Zr30Ti10Ni2.5 metallic glasses devitrify from the supercooled liquid with low energy barrier for nucleation while devitrification of the alloys containing more than 3.75 at.% Ni or Co proceeds with high energy barrier for nucleation. DSC curves exhibit a single strong exothermic peak at Ni content of 5-60 at.%. In these alloys oC68 (Cu,Ni)10(Zr,Ti)7 phase (solid solution of Ni and Ti in the equilibrium Aba2 Cu10Zr7) is formed.",

keywords = "Bulk Metallic Glasses, Casting, Devitrification, DSC, Glassy Alloys, TEM",

author = "Louzguine, {D. V.} and A. Inoue",

year = "2003",

doi = "10.4028/www.scientific.net/jmnm.15-16.31",

language = "English",

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TY - JOUR

T1 - Influence of Ni and Co additions on supercooled liquid region, devitrification behaviour and mechanical properties of Cu-Zr-Ti bulk metallic glass

AU - Louzguine, D. V.

AU - Inoue, A.

PY - 2003

Y1 - 2003

N2 - The influence of Ni and Co on devitrification and properties of Cu 60Zr30Ti10 metallic glass is studied in the present work. Bulk and ribbon samples of Cu60-xMxZr 30Ti10 (at.%) (M=Ni and Co) alloys were obtained by copper mould casting and melt spinning technique, respectively. The studied glassy alloys showed high compressive fraction strength. Small additions of Ni and Co significantly increase supercooled liquid region of the Cu60Zr 30Ti10 metallic glass. Devitrification of the Cu 60-xMxZr30Ti10 (at.%) ribbon samples was studied in details. Ni addition drastically changes devitrification behaviour of the Cu60Zr30Ti10 when the Ni content is above 3.75 at.%. Cu60Zr30Ti10 and Cu57.5Zr30Ti10Ni2.5 metallic glasses devitrify from the supercooled liquid with low energy barrier for nucleation while devitrification of the alloys containing more than 3.75 at.% Ni or Co proceeds with high energy barrier for nucleation. DSC curves exhibit a single strong exothermic peak at Ni content of 5-60 at.%. In these alloys oC68 (Cu,Ni)10(Zr,Ti)7 phase (solid solution of Ni and Ti in the equilibrium Aba2 Cu10Zr7) is formed.

AB - The influence of Ni and Co on devitrification and properties of Cu 60Zr30Ti10 metallic glass is studied in the present work. Bulk and ribbon samples of Cu60-xMxZr 30Ti10 (at.%) (M=Ni and Co) alloys were obtained by copper mould casting and melt spinning technique, respectively. The studied glassy alloys showed high compressive fraction strength. Small additions of Ni and Co significantly increase supercooled liquid region of the Cu60Zr 30Ti10 metallic glass. Devitrification of the Cu 60-xMxZr30Ti10 (at.%) ribbon samples was studied in details. Ni addition drastically changes devitrification behaviour of the Cu60Zr30Ti10 when the Ni content is above 3.75 at.%. Cu60Zr30Ti10 and Cu57.5Zr30Ti10Ni2.5 metallic glasses devitrify from the supercooled liquid with low energy barrier for nucleation while devitrification of the alloys containing more than 3.75 at.% Ni or Co proceeds with high energy barrier for nucleation. DSC curves exhibit a single strong exothermic peak at Ni content of 5-60 at.%. In these alloys oC68 (Cu,Ni)10(Zr,Ti)7 phase (solid solution of Ni and Ti in the equilibrium Aba2 Cu10Zr7) is formed.

KW - Bulk Metallic Glasses

KW - Casting

KW - Devitrification

KW - DSC

KW - Glassy Alloys

KW - TEM

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JO - Journal of Metastable and Nanocrystalline Materials

JF - Journal of Metastable and Nanocrystalline Materials

T2 - Proceedings of the 9th International Symposium on Metastable Mechanically Alloyed and Nanocrystalline Materials (ISMANAM-2002)

Y2 - 8 September 2002 through 12 September 2002

ER -

Influence of Ni and Co additions on supercooled liquid region, devitrification behaviour and mechanical properties of Cu-Zr-Ti bulk metallic glass

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Keywords

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