典型文献
Texture evolution and mechanical anisotropy of an ultrafine/nano-grained pure copper tube processed via hydrostatic tube cyclic expansion extrusion
文献摘要：
Texture evolution and mechanical anisotropic behavior of an ultrafine-grained (UFG) pure copper tube processed by recently intro-duced method of hydrostatic tube cyclic expansion extrusion (HTCEE) was investigated. For the UFG tube, different deformation behavior and a significant anisotropy in tensile properties were recorded along the longitudinal and peripheral directions. The HTCEE process increased the yield strength and the ultimate strength in the axial direction by 3.6 and 1.67 times, respectively. Also, this process increased the yield strength and the ultimate strength in the peripheral direction by 1.15 and 1.12 times, respectively. The ratio of ultimate tensile strength in the peripheral direction to that in the axial direction, as a criterion for mechanical anisotropy, are 1.7 and 1.16 for the as-annealed coarse-grained and the HTCEE processed UFG tube, respectively. The results are indicative of a reducing effect of the HTCEE process on the mechanical anisotropy. Besides, after HTCEE process, a low loss of ductility was observed in both directions, which is another advantage of HTCEE process. Hard-ness measurements revealed a slight increment of hardness values in the peripheral direction, which is in agreement with the trend of tensile tests. Texture analysis was conducted in order to determine the oriental distribution of the grains. The obtained {111} pole figures demonstrate the texture evolution and reaffirm the anisotropy observed in mechanical properties. Scanning electron microscopy micrographs showed that different modes of fracture occurred after tensile testing in the two orthogonal directions.
文献关键词：
中图分类号：
作者姓名：
Seyed Moien Faregh;Ghader Faraji;Mahmoud Mosavi Mashhadi;Mohammad Eftekhari
作者机构：
School of Mechanical Engineering,College of Engineering,University of Tehran,Tehran 11155-4563,Iran
文献出处：
引用格式：
[1]Seyed Moien Faregh;Ghader Faraji;Mahmoud Mosavi Mashhadi;Mohammad Eftekhari-.Texture evolution and mechanical anisotropy of an ultrafine/nano-grained pure copper tube processed via hydrostatic tube cyclic expansion extrusion)[J].矿物冶金与材料学报,2022(12):2241-2251
A类：
HTCEE,reaffirm
B类：
Texture,evolution,mechanical,anisotropy,ultrafine,nano,grained,pure,copper,tube,processed,via,hydrostatic,cyclic,expansion,extrusion,anisotropic,behavior,UFG,by,recently,intro,duced,method,was,investigated,For,different,deformation,significant,tensile,properties,were,recorded,along,longitudinal,peripheral,directions,increased,yield,strength,ultimate,axial,times,respectively,Also,this,ratio,that,criterion,are,annealed,coarse,results,indicative,reducing,effect,Besides,after,low,loss,ductility,observed,both,which,another,advantage,Hard,measurements,revealed,slight,increment,hardness,values,agreement,trend,tests,analysis,conducted,order,determine,oriental,distribution,grains,obtained,pole,figures,demonstrate,texture,Scanning,electron,microscopy,micrographs,showed,modes,fracture,occurred,testing,two,orthogonal
AB值：
0.457338
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。
