典型文献
A wear-resistant metastable CoCrNiCu high-entropy alloy with modulated surface and subsurface structures
文献摘要：
Sliding friction-induced subsurface structures and severe surface oxidation can be the major causes influencing the wear resistance of ductile metallic materials.Here,we demonstrated the role of subsurface and surface structures in enhancing the wear resistance of an equiatomic metastable CoCrNiCu high-entropy alloy(HEA).The CoCrNiCu HEA is composed of a CoCrNi-rich face-centered cubic(FCC)dendrite phase and a Cu-rich FCC inter-dendrite phase.Copious Cu-rich nano-precipitates are formed and distributed uniformly inside the dendrites after tuning the distribution and composition of the two phases by thermal annealing.Although the formation of nano-precipitates decreases the hardness of the alloy due to the loss of solid solution strengthening,these nano-precipitates can be deformed to form continuous Cu-rich nanolayers during dry sliding,leading to a self-organized nano-laminated microstructure and extensive hardening in the subsurface.In addition,the nano-precipitates can facilitate the formation of continuous and compacted glaze layers on the worn surface,which are also beneficial for the reduction of the wear rate of CoCrNiCu.The current work can be extended to other alloy systems and might provide guidelines for designing and fabricating wear-resistant alloys in general.
文献关键词：
中图分类号：
作者姓名：
Yue REN;Qian JIA;Yin DU;Qing ZHOU;Christian GREINER;Ke HUA;Haifeng WANG;Jian WANG
作者机构：
State Key Laboratory of Solidification Processing,Center of Advanced Lubrication and Seal Materials,Northwestern Polytechnical University,Xi'an 710072,China;Institute for Applied Materials,Karlsruhe Institute of Technology,Karlsruhe 76131,Germany;Mechanical and Materials Engineering,University of Nebraska-Lincoln,Nebraska 68588,USA
文献出处：
引用格式：
[1]Yue REN;Qian JIA;Yin DU;Qing ZHOU;Christian GREINER;Ke HUA;Haifeng WANG;Jian WANG-.A wear-resistant metastable CoCrNiCu high-entropy alloy with modulated surface and subsurface structures)[J].摩擦（英文）,2022(10):1722-1738
A类：
CoCrNiCu,Copious
B类：
wear,resistant,metastable,high,entropy,modulated,subsurface,structures,Sliding,friction,induced,severe,oxidation,can,major,causes,influencing,resistance,ductile,metallic,materials,Here,demonstrated,role,enhancing,equiatomic,HEA,composed,rich,centered,cubic,FCC,inter,precipitates,are,distributed,uniformly,inside,dendrites,after,tuning,distribution,composition,two,phases,by,thermal,annealing,Although,formation,decreases,hardness,due,loss,solid,solution,strengthening,these,deformed,continuous,nanolayers,during,dry,sliding,leading,self,organized,laminated,microstructure,extensive,hardening,In,addition,facilitate,compacted,glaze,worn,which,also,beneficial,reduction,current,work,extended,other,systems,might,provide,guidelines,designing,fabricating,alloys,general
AB值：
0.511401
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