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as high as as-received BMG. Therefore, the laser welding technology can be used to achieve successful bonding of bulk metallic glasses and crystallization metal.关键词:......
nanoindentation technique is used to map out the structure heterogeneity in a Zr-based bulk metallic glass(BMG). With these ongoing research efforts, we hope that more research work could be stimulated......
is analyzed using Weibull statistics.The Weibull modulus(m) and characteristic strength(σ0) of the Zr48Cu45Al7 BMG are 34 and 2630 MPa,respectively,which are much higher than the values of fine......
Zr基块体金属玻璃蠕变行为的纳米压痕研究(英文)李春燕1,2,朱福平1,丁娟强1,尹金锋1,王铮3,赵燕春1,2,寇生中1,21. 兰州理工大学省部共建有色金属先进加工与再利用国家重点实验室2. 兰州理工大学温州泵阀工程研究院3. 中国重汽集团济南卡车有限公司摘 要:通过纳米压痕实验研究了加载速率和保载时间对(Zr0.6336Cu0.1452Ni0.1012Al0.12)97.4Er2.6块体金属玻璃(BMG)的蠕变变形行为的影响.实验结果表明,合金试样的蠕变位移随着加载速率或保载时间的增加而增大.另一方面,合金样品的硬度(H)也随着加载速率或保载时间的增加而降低.合金试样在纳米压痕过程中具有尺寸效应,合金试样的硬度随着压痕深度的增加而降低.合金试样在纳米压痕过程中具有锯齿流动现象,并且该现象具有速率......
liquid region, ΔT x, and the parameter, γ; but not with the reduced glass transition temperature, T rg. In addition, the La62Al14Cu14Co8 BMG exhibited a high GFA, low glass transition temperature......
was observed for all samples in the boron range of 15.9at%-25.7at%, with the alloy at 15.9at% of boron having the best thermal properties. The ferrous-based bulk metallic glasses (BMG) obtained have high......
, and excellent corrosion resistance properties indicates that this kind of BMG is promising for biomedical applications.关键词:......
liquid region, ΔT x, and the parameter, γ; but not with the reduced glass transition temperature, T rg. In addition, the La62Al14Cu14Co8 BMG exhibited a high GFA, low glass transition temperature......
加压退火对Gd36La20Al24Co20块体非晶合金晶化行为和热稳定性的影响刘彤1,朱亚蓉1,张同文1,张涛1(1.北京市北京航空航天大学材料科学与工程学院航空材料与服役教育部重点实验室)摘 要:用铜模铸造法制备了Gd36La20Al24Co20块体非晶合金,并在其过冷液相区内不同温度及不同压力下进行了加压退火处理.通过XRD和DSC研究了加压退火处理对该非晶合金晶化行为及热稳定性的影响规律.结果表明,加压退火抑制了Gd36La20Al24Co20非晶合金的晶化过程,其晶化激活能E随退火压力的增加而增大,分析......
by regulating Zr content. The composition of Zr-Al-Cu-Ni BMGs with the lowest m value would be near 54%Zr (mole fraction) because the m value about 13 of Zr54Al13Cu18Ni15 BMG is the lowest among... of the m for a range of ternary and higher-order alloys indicated an intermediate fragility strength where 3060Ni10Al10Cu20 BMG was 21, which was the lowest m value for metallic glasses. Then, could other......