Enhancement of plasticity of Fe-based bulk metallic glass by Ni substitution for Fe
Enhancement of plasticity of Fe-based bulk metallic glass by Ni substitution for Fe
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DOI：
10.1016/j.jallcom.2010.02.058
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发表时间：
2010-08
影响因子：
6.2
通讯作者：
Shengfeng Guo;Ning Li;Cheng Zhang;Lin Liu
中科院分区：
文献类型：
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作者：
Shengfeng Guo;Ning Li;Cheng Zhang;Lin Liu
采用铜模铸造法制备了直径为3 mm的大块非晶合金（Fe 1-xNix）71 Mo 5 P12 C10 B2（x=0，0.1和0.2）。采用X射线衍射（XRD）、差示扫描量热法（DSC）和压缩试验研究了Ni替代Fe对合金结构、热性能和力学性能的影响。结果表明，Ni替代Fe提高了Fe_（71）Mo_5 P_（12）C_（10）B_2BMG的非晶形成能力，塑性应变从3.1%（x=0）提高到5.2%（x=0.2）。从Ni替代Fe降低了合金的玻璃化转变温度和过冷液相区两个方面讨论了合金塑性的改善。
Bulk metallic glasses (BMGs) (Fe1−xNix)71Mo5P12C10B2(x=0, 0.1 and 0.2) with a diameter of 3mm were synthesized by copper mold casting. The effect of Ni substitution for Fe on the structure, thermal and mechanical properties has been studied by X-ray diffraction (XRD), differential scanning calorimetry (DSC) and compressive testing. It was found that the substitution of Ni for Fe enhances the glass forming ability, and improves the plasticity of Fe71Mo5P12C10B2BMG as indicated by the increase in the plastic strain from 3.1% (x=0) to 5.2% (x=0.2). The improvement of the plasticity is discussed in term of the reduction of glass transition temperature and the supercooled liquid region due to the substitution of Ni for Fe.