Journal
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
Volume 881, Issue -, Pages -Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.msea.2023.145421
Keywords
Amorphous alloy wires; Cold drawing; Mechanical property; Structure
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This study investigated the structural and tensile deformation behaviors of cold-drawn Cu47.5Zr47.5Al5 amorphous alloy (AA) microwires compared to melt-extracted ones. The results showed that cold-drawn wires still maintained their amorphous structure. The cold-drawing process led to fewer surface defects, higher local order degree, and greater compressive residual stress, resulting in higher tensile fracture strength and reliability compared to melt-extracted ones. This study demonstrated that cold-drawing is an effective method to enhance the mechanical performance of AA wires.
Here, cold-drawing was applied to melt-extracted Cu47.5Zr47.5Al5 amorphous alloy (AA) microwires. The struc-tural observations and tensile deformation behaviors were studied before and after cold-drawing. The drawn wire still possesses amorphous structure. Less surface defects, higher local order degree, and greater compressive residual stress induced by cold-drawing lead to a higher tensile fracture strength and a higher reliability of the drawn wires than those of melt-extracted one. The results obtained in this paper demonstrate that the cold -drawing processing is an effective method to improve the mechanical performance of the AA wires.
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