Pronounced ductility in CuZrAl ternary bulk metallic glass composites with optimized microstructure through melt adjustment | Zendy

Zengqian Liu | Zendy; Ran Li | Zendy; Gang Liu | Zendy; Kaikai Song | Zendy; S. Pauly | Zendy; Tao Zhang | Zendy; J. Eckert | Zendy

Open Access

Pronounced ductility in CuZrAl ternary bulk metallic glass composites with optimized microstructure through melt adjustment

Author(s) -

Zengqian Liu,

Ran Li,

Gang Liu,

Kaikai Song,

S. Pauly,

Tao Zhang,

J. Eckert

Publication year - 2012

Publication title -

aip advances

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.421

H-Index - 58

ISSN - 2158-3226

DOI - 10.1063/1.4754853

Subject(s) - materials science , microstructure , nucleation , composite material , homogenization (climate) , ductility (earth science) , ultimate tensile strength , composite number , ternary operation , amorphous metal , work hardening , dissolution , metallurgy , alloy , creep , chemical engineering , biodiversity , ecology , computer science , engineering , biology , programming language , chemistry , organic chemistry

Microstructures and mechanical properties of as-cast Cu47.5Zr47.5Al5 bulk metallic glass composites are optimized by appropriate remelting treatment of master alloys. With increasing remelting time, the alloys exhibit homogenized size and distribution of in situ formed B2 CuZr crystals. Pronounced tensile ductility of ∼13.6% and work-hardening ability are obtained for the composite with optimized microstructure. The effect of remelting treatment is attributed to the suppressed heterogeneous nucleation and growth of the crystalline phase from undercooled liquid, which may originate from the dissolution of oxides and nitrides as well as from the micro-scale homogenization of the melt

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