Mechanical properties and corrosion behavior of (Cu0.6Hf0.25Ti0.15)90Nb10 bulk metallic glass composites

Chunling Qin; Wei Zhang; Kenji Amiya; Katsuhiko Asami; Akihisa Inoue

doi:10.1016/j.msea.2006.02.244

Mechanical properties and corrosion behavior of (Cu_0.6Hf_0.25Ti_0.15)₉₀Nb₁₀ bulk metallic glass composites

Chunling Qin, Wei Zhang, Kenji Amiya, Katsuhiko Asami, Akihisa Inoue

Trans-Regional Corporation Center for Industrial Materials Research

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

11 Citations (Scopus)

Abstract

An in situ formed (Cu_0.6Hf_0.25Ti_0.15)₉₀Nb₁₀ (number indicate at.%) bulk metallic glass (BMG) composite was prepared by copper mold casting. The ductile Nb-rich crystalline phase with a dendritic structure disperses homogeneously in the glassy matrix. The (Cu_0.6Hf_0.25Ti_0.15)₉₀Nb₁₀ composite alloy exhibits much higher corrosion resistance in 1N HCl and 3 mass% NaCl solutions than the Nb-free alloy. The addition of Nb is favorable for the alloys to form a Hf-, Ti- and Nb-enriched highly protective surface film with higher chemical stability in HCl and NaCl solutions. Young's modulus, compressive fracture strength and compressive plastic strain of the (Cu_0.6Hf_0.25Ti_0.15)₉₀Nb₁₀ BMG composite are 106 GPa, 2625 MPa and 12.5%, respectively. The increase in compressive strain-to-failure is due to the ductile dendrites restricting shear band propagation, promoting the generation of multiple shear bands.

Original language	English
Pages (from-to)	230-234
Number of pages	5
Journal	Materials Science and Engineering A
Volume	448-451
DOIs	https://doi.org/10.1016/j.msea.2006.02.244
Publication status	Published - 2007 Mar 25

Keywords

Bulk metallic glass composite
Corrosion resistance
Ductile dendrite
Mechanical properties

ASJC Scopus subject areas

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

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title = "Mechanical properties and corrosion behavior of (Cu0.6Hf0.25Ti0.15)90Nb10 bulk metallic glass composites",

abstract = "An in situ formed (Cu0.6Hf0.25Ti0.15)90Nb10 (number indicate at.%) bulk metallic glass (BMG) composite was prepared by copper mold casting. The ductile Nb-rich crystalline phase with a dendritic structure disperses homogeneously in the glassy matrix. The (Cu0.6Hf0.25Ti0.15)90Nb10 composite alloy exhibits much higher corrosion resistance in 1N HCl and 3 mass% NaCl solutions than the Nb-free alloy. The addition of Nb is favorable for the alloys to form a Hf-, Ti- and Nb-enriched highly protective surface film with higher chemical stability in HCl and NaCl solutions. Young's modulus, compressive fracture strength and compressive plastic strain of the (Cu0.6Hf0.25Ti0.15)90Nb10 BMG composite are 106 GPa, 2625 MPa and 12.5%, respectively. The increase in compressive strain-to-failure is due to the ductile dendrites restricting shear band propagation, promoting the generation of multiple shear bands.",

keywords = "Bulk metallic glass composite, Corrosion resistance, Ductile dendrite, Mechanical properties",

author = "Chunling Qin and Wei Zhang and Kenji Amiya and Katsuhiko Asami and Akihisa Inoue",

year = "2007",

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doi = "10.1016/j.msea.2006.02.244",

language = "English",

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AU - Qin, Chunling

AU - Zhang, Wei

AU - Amiya, Kenji

AU - Asami, Katsuhiko

AU - Inoue, Akihisa

PY - 2007/3/25

Y1 - 2007/3/25

N2 - An in situ formed (Cu0.6Hf0.25Ti0.15)90Nb10 (number indicate at.%) bulk metallic glass (BMG) composite was prepared by copper mold casting. The ductile Nb-rich crystalline phase with a dendritic structure disperses homogeneously in the glassy matrix. The (Cu0.6Hf0.25Ti0.15)90Nb10 composite alloy exhibits much higher corrosion resistance in 1N HCl and 3 mass% NaCl solutions than the Nb-free alloy. The addition of Nb is favorable for the alloys to form a Hf-, Ti- and Nb-enriched highly protective surface film with higher chemical stability in HCl and NaCl solutions. Young's modulus, compressive fracture strength and compressive plastic strain of the (Cu0.6Hf0.25Ti0.15)90Nb10 BMG composite are 106 GPa, 2625 MPa and 12.5%, respectively. The increase in compressive strain-to-failure is due to the ductile dendrites restricting shear band propagation, promoting the generation of multiple shear bands.

AB - An in situ formed (Cu0.6Hf0.25Ti0.15)90Nb10 (number indicate at.%) bulk metallic glass (BMG) composite was prepared by copper mold casting. The ductile Nb-rich crystalline phase with a dendritic structure disperses homogeneously in the glassy matrix. The (Cu0.6Hf0.25Ti0.15)90Nb10 composite alloy exhibits much higher corrosion resistance in 1N HCl and 3 mass% NaCl solutions than the Nb-free alloy. The addition of Nb is favorable for the alloys to form a Hf-, Ti- and Nb-enriched highly protective surface film with higher chemical stability in HCl and NaCl solutions. Young's modulus, compressive fracture strength and compressive plastic strain of the (Cu0.6Hf0.25Ti0.15)90Nb10 BMG composite are 106 GPa, 2625 MPa and 12.5%, respectively. The increase in compressive strain-to-failure is due to the ductile dendrites restricting shear band propagation, promoting the generation of multiple shear bands.

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KW - Ductile dendrite

KW - Mechanical properties

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