典型文献
Enhanced electrical,mechanical and tribological properties of Cu-Cr-Zr alloys by continuous extrusion forming and subsequent aging treatment
文献摘要：
As a promising material for the new generation of high-speed railway contact wires,the comprehensive optimization of the electrical conductivity,strength,hardness and wear resistance of the Cu-Cr-Zr alloy has received extensive attention.In this paper,a high-performance Cu-1Cr-O.1Zr alloy with an ultimate tensile strength of 599.1 MPa,a uniform elongation of 8.6％,a microhardness of 195.7 HV0.2 and an electri-cal conductivity of 80.07％IACS was achieved by the continuous extrusion forming(CEF)and subsequent peak-aging treatment.The grain refinement strengthening,dislocation strengthening and precipitation strengthening are identified to be responsible for the excellent electrical and mechanical properties of Cu-Cr-Zr alloy.The wear behavior of Cu-Cr-Zr alloy was investigated by examining the evolution of worn surface morphology and subsurface microstructure.The microhardness(H)and reduced elastic modulus(Er)of the subsurface below the worn surface measured by nanoindentation were calculated to gage the tribological performance of Cu-Cr-Zr alloy.Results show that the continuously extruded and subsequently peak-aged specimen has the best wear resistance,which indicates that the tribological properties of Cu-Cr-Zr alloy strongly depend on its strength and hardness.It can be concluded that the CEF and subsequent aging treatment process provides a new and high-efficiency procedure for the continuous preparation of Cu-Cr-Zr alloys.
文献关键词：
中图分类号：
作者姓名：
Zhe Shen;Zhongze Lin;Peijian Shi;Jiale Zhu;Tianxiang Zheng;Biao Ding;Yifeng Guo;Yunbo Zhong
作者机构：
State Key Laboratory of Advanced Special Steel,Shanghai University,Shanghai 200444,China;School of Materials Science and Engineering,Shanghai University,Shanghai 200444,China;Shanghai Key Laboratory of Advanced Ferrometallurgy,Shanghai University,Shanghai 200444,China
文献出处：
引用格式：
[1]Zhe Shen;Zhongze Lin;Peijian Shi;Jiale Zhu;Tianxiang Zheng;Biao Ding;Yifeng Guo;Yunbo Zhong-.Enhanced electrical,mechanical and tribological properties of Cu-Cr-Zr alloys by continuous extrusion forming and subsequent aging treatment)[J].材料科学技术（英文版）,2022(15):187-197
A类：
gage
B类：
Enhanced,electrical,mechanical,tribological,properties,alloys,by,extrusion,forming,aging,treatment,promising,material,new,generation,high,speed,railway,contact,wires,comprehensive,optimization,conductivity,wear,resistance,has,received,extensive,attention,In,this,paper,performance,1Cr,1Zr,ultimate,tensile,uniform,elongation,microhardness,HV0,IACS,was,achieved,CEF,peak,grain,refinement,strengthening,dislocation,precipitation,are,identified,responsible,excellent,behavior,investigated,examining,evolution,worn,morphology,subsurface,microstructure,reduced,elastic,modulus,Er,below,measured,nanoindentation,were,calculated,Results,show,that,continuously,extruded,subsequently,aged,specimen,best,which,indicates,strongly,depend,its,It,can,concluded,process,provides,efficiency,procedure,preparation
AB值：
0.492618
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