Thermal Stability, Glass-Formation Ability, and Mechanical Properties of (Zr41.2Ti13.8Cu12.5Ni10Be22.5)100−xNbx Amorphous Alloys
Thermal Stability, Glass-Formation Ability, and Mechanical Properties of (Zr41.2Ti13.8Cu12.5Ni10Be22.5)100−xNbx Amorphous Alloys
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DOI：
10.1007/s11661-007-9393-1
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发表时间：
2008-08
期刊：
影响因子：
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通讯作者：
F. Jiang;G. Chen;W. Li;Z. Wang;G. Chen
中科院分区：
文献类型：
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作者：
F. Jiang;G. Chen;W. Li;Z. Wang;G. Chen
Bulk amorphous alloys of (Zr41.2Ti13.8Cu12.5Ni10Be22.5)100−xNbxwithx= 0, 5, 11, and 13 were prepared by water quenching. Differential scanning calorimeter (DSC) analysis revealed that the addition of Nb enhances the thermal stability but appreciably decreases the glass-forming ability (GFA) of the alloys. Scanning electron microscope (SEM) and compression tests indicated that the Nb addition effectively improves the strength and plasticity of a Zr41.2Ti13.8Cu12.5Ni10Be22.5amorphous alloy, which benefits from multiple shear bands induced by ductile crystalline phase dispersing in the amorphous matrix. The bulk amorphous alloy withx= 5 exhibits a fracture stress of 2070 MPa and total strain to fracture of 25.8 pct, respectively.
