摘要
采用团簇线方法设计并制备了Mg-Ni-Y三元非晶合金,并对团簇结构的稳定性、表征非晶形成能力参数及耐腐蚀性能进行了研究。结果表明,设计的Mg_(32.3)Ni_(21.5)Y_(46.2)、Mg_(30.9)Ni_(40.6)Y_(28.5)和Mg_(27.2)Ni_(47.8)Y_(25.0) 3种非晶合金具有较高的原子尺寸差σ、电负性差?x、τ和φ,在合金结构及化学性能上具有较高的稳定性及良好的非晶形成能力,且上述非晶合金在NaOH溶液中具有良好的耐腐蚀性能。
Bulk metallic glass formation in Mg-Ni-Y alloy systems was investigated using a cluster line approach in combination, and the cluster formulae stability, glass-forming ability（GFA）, corrosion resistance properties of the sample were investigated by Δ, RDAC, σ, Δx, τ, φ and icorr. The results show that Mg_（32.3）Ni_（21.5）Y_（46.2）、Mg_（30.9）Ni_（40.6）Y_（28.5）和Mg_（27.2）Ni_（47.8）Y_（25.0） bulk metallic glasses using cluster line criterion have high Δ, RDAC, σ,Δx, τ and φ, which are advantageous for the cluster formulae stability and the increase of glass-forming ability（GFA）. All the samples have a low icorr, which indicates that the Mg-Ni-Y alloys designed show good corrosion resistance in Na OH solution.
出处
《稀有金属材料与工程》
SCIE
EI
CAS
CSCD
北大核心
2016年第6期1521-1525,共5页
Rare Metal Materials and Engineering
基金
国家自然科学基金(21153003)
关键词
Mg-Ni-Y非晶合金
团簇线
成分设计
耐腐蚀性
Mg-Ni-Y bulk metallic glasses
cluster line
composition design
corrosion resistant property
