Composition dependence of the microstructure and mechanical behavior of Ti–Zr–Cu–Pd–Sn–Nb bulk metallic glass composites

S. Yang; D. Li; X. C. Li; Z. Z. Zhang; S. F. Zhang; L. He

doi:10.1016/j.intermet.2017.06.006

Composition dependence of the microstructure and mechanical behavior of Ti–Zr–Cu–Pd–Sn–Nb bulk metallic glass composites

S. Yang
, D. Li
, X. C. Li
, Z. Z. Zhang
, S. F. Zhang
, L. He

School of Physics

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

9 Scopus citations

Abstract

Ti-based bulk metallic glass composite alloys Ti₅₆Zr₆Cu_19.8Pd_8.4Sn_1.8Nb₈, Ti₆₄Zr₄Cu_13.2Pd_5.6Sn_1.2Nb₁₂ and Ti₆₈Cu_13.2Pd_5.6Sn_1.2Nb₁₂ were designed to obtain the microstructure composing of β-Ti dendrites and glassy matrix. The compressive and three-point bending properties were investigated. It was found that the actual microstructure of the Nb-added alloys consisted of primarily precipitated β-Ti dendrites, network-like glassy matrix, and extra island-like Ti₂Cu intermetallic phase with different volume fractions. Under compressive loading, all the Nb-added alloys presented higher yield strength combined with remarkably increased plasticity. Under bending condition, however, the alloys Ti₅₆Zr₆Cu_19.8Pd_8.4Sn_1.8Nb₈ and Ti₆₄Zr₄Cu_13.2Pd_5.6Sn_1.2Nb₁₂ with higher Ti₂Cu volume fractions became completely brittle. The alloy Ti₆₈Cu_13.2Pd_5.6Sn_1.2Nb₁₂ could keep its plastic deformability due to the decreased Ti₂Cu volume fraction. Compressive deforming behavior of the Nb-added alloys was determined by the ductile β-Ti phase and glassy matrix, nevertheless, bending deforming behavior of the alloys was determined by the volume fraction and distribution of the brittle intermetallics.

Original language	English
Pages (from-to)	1-8
Number of pages	8
Journal	Intermetallics
Volume	90
DOIs	https://doi.org/10.1016/j.intermet.2017.06.006
State	Published - Nov 2017

Keywords

A. Metallic glasses
B. Brittleness and ductility
D. Microstructure
Mechanical properties
Plastic deformation mechanisms

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10.1016/j.intermet.2017.06.006

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@article{885530191d574557b5aedfe47ff553f3,

title = "Composition dependence of the microstructure and mechanical behavior of Ti–Zr–Cu–Pd–Sn–Nb bulk metallic glass composites",

abstract = "Ti-based bulk metallic glass composite alloys Ti56Zr6Cu19.8Pd8.4Sn1.8Nb8, Ti64Zr4Cu13.2Pd5.6Sn1.2Nb12 and Ti68Cu13.2Pd5.6Sn1.2Nb12 were designed to obtain the microstructure composing of β-Ti dendrites and glassy matrix. The compressive and three-point bending properties were investigated. It was found that the actual microstructure of the Nb-added alloys consisted of primarily precipitated β-Ti dendrites, network-like glassy matrix, and extra island-like Ti2Cu intermetallic phase with different volume fractions. Under compressive loading, all the Nb-added alloys presented higher yield strength combined with remarkably increased plasticity. Under bending condition, however, the alloys Ti56Zr6Cu19.8Pd8.4Sn1.8Nb8 and Ti64Zr4Cu13.2Pd5.6Sn1.2Nb12 with higher Ti2Cu volume fractions became completely brittle. The alloy Ti68Cu13.2Pd5.6Sn1.2Nb12 could keep its plastic deformability due to the decreased Ti2Cu volume fraction. Compressive deforming behavior of the Nb-added alloys was determined by the ductile β-Ti phase and glassy matrix, nevertheless, bending deforming behavior of the alloys was determined by the volume fraction and distribution of the brittle intermetallics.",

keywords = "A. Metallic glasses, B. Brittleness and ductility, D. Microstructure, Mechanical properties, Plastic deformation mechanisms",

author = "S. Yang and D. Li and Li, \{X. C.\} and Zhang, \{Z. Z.\} and Zhang, \{S. F.\} and L. He",

note = "Publisher Copyright: {\textcopyright} 2017 Elsevier Ltd",

year = "2017",

month = nov,

doi = "10.1016/j.intermet.2017.06.006",

language = "英语",

volume = "90",

pages = "1--8",

journal = "Intermetallics",

issn = "0966-9795",

publisher = "Elsevier Ltd",

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TY - JOUR

T1 - Composition dependence of the microstructure and mechanical behavior of Ti–Zr–Cu–Pd–Sn–Nb bulk metallic glass composites

AU - Yang, S.

AU - Li, D.

AU - Li, X. C.

AU - Zhang, Z. Z.

AU - Zhang, S. F.

AU - He, L.

PY - 2017/11

Y1 - 2017/11

N2 - Ti-based bulk metallic glass composite alloys Ti56Zr6Cu19.8Pd8.4Sn1.8Nb8, Ti64Zr4Cu13.2Pd5.6Sn1.2Nb12 and Ti68Cu13.2Pd5.6Sn1.2Nb12 were designed to obtain the microstructure composing of β-Ti dendrites and glassy matrix. The compressive and three-point bending properties were investigated. It was found that the actual microstructure of the Nb-added alloys consisted of primarily precipitated β-Ti dendrites, network-like glassy matrix, and extra island-like Ti2Cu intermetallic phase with different volume fractions. Under compressive loading, all the Nb-added alloys presented higher yield strength combined with remarkably increased plasticity. Under bending condition, however, the alloys Ti56Zr6Cu19.8Pd8.4Sn1.8Nb8 and Ti64Zr4Cu13.2Pd5.6Sn1.2Nb12 with higher Ti2Cu volume fractions became completely brittle. The alloy Ti68Cu13.2Pd5.6Sn1.2Nb12 could keep its plastic deformability due to the decreased Ti2Cu volume fraction. Compressive deforming behavior of the Nb-added alloys was determined by the ductile β-Ti phase and glassy matrix, nevertheless, bending deforming behavior of the alloys was determined by the volume fraction and distribution of the brittle intermetallics.

AB - Ti-based bulk metallic glass composite alloys Ti56Zr6Cu19.8Pd8.4Sn1.8Nb8, Ti64Zr4Cu13.2Pd5.6Sn1.2Nb12 and Ti68Cu13.2Pd5.6Sn1.2Nb12 were designed to obtain the microstructure composing of β-Ti dendrites and glassy matrix. The compressive and three-point bending properties were investigated. It was found that the actual microstructure of the Nb-added alloys consisted of primarily precipitated β-Ti dendrites, network-like glassy matrix, and extra island-like Ti2Cu intermetallic phase with different volume fractions. Under compressive loading, all the Nb-added alloys presented higher yield strength combined with remarkably increased plasticity. Under bending condition, however, the alloys Ti56Zr6Cu19.8Pd8.4Sn1.8Nb8 and Ti64Zr4Cu13.2Pd5.6Sn1.2Nb12 with higher Ti2Cu volume fractions became completely brittle. The alloy Ti68Cu13.2Pd5.6Sn1.2Nb12 could keep its plastic deformability due to the decreased Ti2Cu volume fraction. Compressive deforming behavior of the Nb-added alloys was determined by the ductile β-Ti phase and glassy matrix, nevertheless, bending deforming behavior of the alloys was determined by the volume fraction and distribution of the brittle intermetallics.

KW - A. Metallic glasses

KW - B. Brittleness and ductility

KW - D. Microstructure

KW - Mechanical properties

KW - Plastic deformation mechanisms

UR - https://www.scopus.com/pages/publications/85020894254

U2 - 10.1016/j.intermet.2017.06.006

DO - 10.1016/j.intermet.2017.06.006

M3 - 文章

AN - SCOPUS:85020894254

SN - 0966-9795

VL - 90

SP - 1

EP - 8

JO - Intermetallics

JF - Intermetallics

ER -

Composition dependence of the microstructure and mechanical behavior of Ti–Zr–Cu–Pd–Sn–Nb bulk metallic glass composites

Abstract

Keywords

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