典型文献
Shear-accelerated crystallization of glass-forming metallic liquids in high-pressure die casting
文献摘要：
As one of the most important forming technologies for industrial bulk metallic glass(BMG)parts with complex shapes,high-pressure die casting(HPDC)can fill a die cavity with a glass-forming metallic liquid in milliseconds.However,to our knowledge,the correlation between flow and crystallization behavior in the HPDC process has never been established.In this study,we report on the solidification behavior of Zr55Cu30Ni5Al10 glass forming liquid under various flow rates.Surprisingly,the resulting alloys display a decreasing content of amorphous phase with increase of flow rate,i.e.increase of cooling rate,suggesting that crystallization kinetics of glass-forming metallic liquids in the HPDC process is strongly dependent on the flow field.Analysis reveals that the accelerated crystallization behavior is mainly ascribed to the rapid increase in viscosity with a decreasing temperature as well as to the huge shear effect in the glass-forming liquid at the end stage of the filling process when the temperature is close to the glass-transition point;this results in a transition from diffusion-to advection-dominated transport.The current investi-gation suggests that flow-related crystallization must be considered to assess the intrinsic glass-forming ability of BMGs produced via HPDC.The obtained results will not only improve the understanding of crystallization dynamics but also promote the high-quality production and large-scale application of BMG parts.
文献关键词：
中图分类号：
作者姓名：
L.H.Liu;W.J.Gao;X.S.Huang;T.Zhang;Z.Y.Liu;C.Yang;W.W.Zhang;W.R.Li;L.Li;P.J.Li
作者机构：
National Engineering Research Center of Near-net-shape Forming for Metallic Materials,South China University of Technology,Guangzhou,510640,China;Department of Mechanical Engineering,Tsinghua University,Beijing,100084,China;Institute of Eontech New Materials Co.,Ltd.,Dongguan,523662,China;Guangdong Provincial Key Laboratory of Micro/Nano Optomechatronics Engineering,College of Mechatronics and Control Engineering,Shenzhen University,Shenzhen,518060,China
文献出处：
引用格式：
[1]L.H.Liu;W.J.Gao;X.S.Huang;T.Zhang;Z.Y.Liu;C.Yang;W.W.Zhang;W.R.Li;L.Li;P.J.Li-.Shear-accelerated crystallization of glass-forming metallic liquids in high-pressure die casting)[J].材料科学技术（英文版）,2022(22):146-157
A类：
BMGs
B类：
Shear,accelerated,crystallization,glass,forming,metallic,liquids,high,pressure,die,casting,one,most,important,technologies,industrial,bulk,parts,complex,shapes,HPDC,can,cavity,milliseconds,However,our,knowledge,correlation,between,flow,behavior,process,never,been,established,In,this,study,report,solidification,Zr55Cu30Ni5Al10,various,rates,Surprisingly,resulting,alloys,display,decreasing,content,amorphous,phase,increase,cooling,suggesting,that,kinetics,strongly,dependent,field,Analysis,reveals,mainly,ascribed,rapid,viscosity,temperature,well,huge,shear,effect,stage,filling,when,close,transition,point,results,from,diffusion,advection,dominated,transport,current,investi,gation,suggests,related,must,considered,assess,intrinsic,ability,produced,via,obtained,will,not,only,improve,understanding,dynamics,but,also,promote,quality,production,large,scale,application
AB值：
0.523556
相似文献
机标中图分类号，由域田数据科技根据网络公开资料自动分析生成，仅供学习研究参考。
